SUSE update for the Linux Kernel

Published: 2022-04-19 | Updated: 2023-04-11

Risk	Medium
Patch available	YES
Number of vulnerabilities	20
CVE-ID	CVE-2021-39713 CVE-2021-45868 CVE-2022-0812 CVE-2022-0850 CVE-2022-1016 CVE-2022-1048 CVE-2022-23036 CVE-2022-23037 CVE-2022-23038 CVE-2022-23039 CVE-2022-23040 CVE-2022-23041 CVE-2022-23042 CVE-2022-26490 CVE-2022-26966 CVE-2022-27666 CVE-2022-28356 CVE-2022-28388 CVE-2022-28389 CVE-2022-28390
CWE-ID	CWE-254 CWE-416 CWE-200 CWE-362 CWE-617 CWE-119 CWE-122 CWE-401 CWE-415
Exploitation vector	Network
Public exploit	Public exploit code for vulnerability #16 is available.
Vulnerable software Subscribe	SUSE Linux Enterprise Server Operating systems & Components / Operating system kernel-source-azure Operating systems & Components / Operating system package or component kernel-devel-azure Operating systems & Components / Operating system package or component kernel-syms-azure Operating systems & Components / Operating system package or component kernel-azure-devel Operating systems & Components / Operating system package or component kernel-azure-debugsource Operating systems & Components / Operating system package or component kernel-azure-debuginfo Operating systems & Components / Operating system package or component kernel-azure-base-debuginfo Operating systems & Components / Operating system package or component kernel-azure-base Operating systems & Components / Operating system package or component kernel-azure Operating systems & Components / Operating system package or component
Vendor	SUSE

Security Bulletin

This security bulletin contains information about 20 vulnerabilities.

1) Security features bypass

EUVDB-ID: #VU63350

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-39713

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The vulnerability allows a local application to escalate privileges on the system.

The vulnerability exists due to multiple issues in Qdisc implementation related to rcu read lock. A local application can execute arbitrary code with elevated privileges.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 12-SP5

kernel-source-azure: before 4.12.14-16.94.1

kernel-devel-azure: before 4.12.14-16.94.1

kernel-syms-azure: before 4.12.14-16.94.1

kernel-azure-devel: before 4.12.14-16.94.1

kernel-azure-debugsource: before 4.12.14-16.94.1

kernel-azure-debuginfo: before 4.12.14-16.94.1

kernel-azure-base-debuginfo: before 4.12.14-16.94.1

kernel-azure-base: before 4.12.14-16.94.1

kernel-azure: before 4.12.14-16.94.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20221266-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Use-after-free

EUVDB-ID: #VU63422

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-45868

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial-of-service attack.

The vulnerability exists due to fs/quota/quota_tree.c does not validate the block number in the quota tree (on disk). A local user can trigger use-after-free error and perform a denial-of-service attack.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 12-SP5

kernel-source-azure: before 4.12.14-16.94.1

kernel-devel-azure: before 4.12.14-16.94.1

kernel-syms-azure: before 4.12.14-16.94.1

kernel-azure-devel: before 4.12.14-16.94.1

kernel-azure-debugsource: before 4.12.14-16.94.1

kernel-azure-debuginfo: before 4.12.14-16.94.1

kernel-azure-base-debuginfo: before 4.12.14-16.94.1

kernel-azure-base: before 4.12.14-16.94.1

kernel-azure: before 4.12.14-16.94.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20221266-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Information disclosure

EUVDB-ID: #VU64919

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-0812

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists in NFS over RDMA in the net/sunrpc/xprtrdma/rpc_rdma.c() function in RPCRDMA_HDRLEN_MIN (7). A local user can gain unauthorized access to sensitive information on the system.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 12-SP5

kernel-source-azure: before 4.12.14-16.94.1

kernel-devel-azure: before 4.12.14-16.94.1

kernel-syms-azure: before 4.12.14-16.94.1

kernel-azure-devel: before 4.12.14-16.94.1

kernel-azure-debugsource: before 4.12.14-16.94.1

kernel-azure-debuginfo: before 4.12.14-16.94.1

kernel-azure-base-debuginfo: before 4.12.14-16.94.1

kernel-azure-base: before 4.12.14-16.94.1

kernel-azure: before 4.12.14-16.94.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20221266-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Information disclosure

EUVDB-ID: #VU63423

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-0850

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output in the copy_page_to_iter() function in iov_iter.c in Linux kernel. A local user can gain unauthorized access to sensitive information on the system.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 12-SP5

kernel-source-azure: before 4.12.14-16.94.1

kernel-devel-azure: before 4.12.14-16.94.1

kernel-syms-azure: before 4.12.14-16.94.1

kernel-azure-devel: before 4.12.14-16.94.1

kernel-azure-debugsource: before 4.12.14-16.94.1

kernel-azure-debuginfo: before 4.12.14-16.94.1

kernel-azure-base-debuginfo: before 4.12.14-16.94.1

kernel-azure-base: before 4.12.14-16.94.1

kernel-azure: before 4.12.14-16.94.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20221266-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

5) Use-after-free

EUVDB-ID: #VU62028

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-1016

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to a use-after-free error in net/netfilter/nf_tables_core.c:nft_do_chain in Linux kernel.. A local user can trigger a use-after-free error and gain access to sensitive information.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 12-SP5

kernel-source-azure: before 4.12.14-16.94.1

kernel-devel-azure: before 4.12.14-16.94.1

kernel-syms-azure: before 4.12.14-16.94.1

kernel-azure-devel: before 4.12.14-16.94.1

kernel-azure-debugsource: before 4.12.14-16.94.1

kernel-azure-debuginfo: before 4.12.14-16.94.1

kernel-azure-base-debuginfo: before 4.12.14-16.94.1

kernel-azure-base: before 4.12.14-16.94.1

kernel-azure: before 4.12.14-16.94.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20221266-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

6) Use-after-free

EUVDB-ID: #VU63428

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-1048

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to execute arbitrary code with elevated privileges.

The vulnerability exists due to a use-after-free error in the Linux kernel’s sound subsystem in the way a user triggers concurrent calls of PCM hw_params. A local user can execute arbitrary code with elevated privileges and perform a denial-of-service attack.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 12-SP5

kernel-source-azure: before 4.12.14-16.94.1

kernel-devel-azure: before 4.12.14-16.94.1

kernel-syms-azure: before 4.12.14-16.94.1

kernel-azure-devel: before 4.12.14-16.94.1

kernel-azure-debugsource: before 4.12.14-16.94.1

kernel-azure-debuginfo: before 4.12.14-16.94.1

kernel-azure-base-debuginfo: before 4.12.14-16.94.1

kernel-azure-base: before 4.12.14-16.94.1

kernel-azure: before 4.12.14-16.94.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20221266-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

7) Race condition

EUVDB-ID: #VU63305

Risk: Low

CVSSv3.1: 6.1 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-23036

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a local user to bypass implemented security restrictions.

The vulnerability exists due to a race condition in the blkfront ring buffer. A malicious backend can exploit the race condition and read or write data or perform a denial of service attack.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 12-SP5

kernel-source-azure: before 4.12.14-16.94.1

kernel-devel-azure: before 4.12.14-16.94.1

kernel-syms-azure: before 4.12.14-16.94.1

kernel-azure-devel: before 4.12.14-16.94.1

kernel-azure-debugsource: before 4.12.14-16.94.1

kernel-azure-debuginfo: before 4.12.14-16.94.1

kernel-azure-base-debuginfo: before 4.12.14-16.94.1

kernel-azure-base: before 4.12.14-16.94.1

kernel-azure: before 4.12.14-16.94.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20221266-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

8) Race condition

EUVDB-ID: #VU63306

Risk: Low

CVSSv3.1: 6.1 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-23037

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a local user to bypass implemented security restrictions.

The vulnerability exists due to a race condition in the netfront ring buffer. A malicious backend can exploit the race condition and read or write data or perform a denial of service attack.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 12-SP5

kernel-source-azure: before 4.12.14-16.94.1

kernel-devel-azure: before 4.12.14-16.94.1

kernel-syms-azure: before 4.12.14-16.94.1

kernel-azure-devel: before 4.12.14-16.94.1

kernel-azure-debugsource: before 4.12.14-16.94.1

kernel-azure-debuginfo: before 4.12.14-16.94.1

kernel-azure-base-debuginfo: before 4.12.14-16.94.1

kernel-azure-base: before 4.12.14-16.94.1

kernel-azure: before 4.12.14-16.94.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20221266-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

9) Race condition

EUVDB-ID: #VU63307

Risk: Low

CVSSv3.1: 6.1 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-23038

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a local user to bypass implemented security restrictions.

The vulnerability exists due to a race condition in the scsifront ring buffer. A malicious backend can exploit the race condition and read or write data or perform a denial of service attack.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 12-SP5

kernel-source-azure: before 4.12.14-16.94.1

kernel-devel-azure: before 4.12.14-16.94.1

kernel-syms-azure: before 4.12.14-16.94.1

kernel-azure-devel: before 4.12.14-16.94.1

kernel-azure-debugsource: before 4.12.14-16.94.1

kernel-azure-debuginfo: before 4.12.14-16.94.1

kernel-azure-base-debuginfo: before 4.12.14-16.94.1

kernel-azure-base: before 4.12.14-16.94.1

kernel-azure: before 4.12.14-16.94.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20221266-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

10) Race condition

EUVDB-ID: #VU63308

Risk: Low

CVSSv3.1: 6.1 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-23039

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a local user to bypass implemented security restrictions.

The vulnerability exists due to a race condition in the gntalloc ring buffer. A malicious backend can exploit the race condition and read or write data or perform a denial of service attack.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 12-SP5

kernel-source-azure: before 4.12.14-16.94.1

kernel-devel-azure: before 4.12.14-16.94.1

kernel-syms-azure: before 4.12.14-16.94.1

kernel-azure-devel: before 4.12.14-16.94.1

kernel-azure-debugsource: before 4.12.14-16.94.1

kernel-azure-debuginfo: before 4.12.14-16.94.1

kernel-azure-base-debuginfo: before 4.12.14-16.94.1

kernel-azure-base: before 4.12.14-16.94.1

kernel-azure: before 4.12.14-16.94.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20221266-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

11) Race condition

EUVDB-ID: #VU63309

Risk: Low

CVSSv3.1: 6.1 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-23040

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a local user to bypass implemented security restrictions.

The vulnerability exists due to a race condition in the xenbus ring buffer. A malicious backend can exploit the race condition and read or write data or perform a denial of service attack.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 12-SP5

kernel-source-azure: before 4.12.14-16.94.1

kernel-devel-azure: before 4.12.14-16.94.1

kernel-syms-azure: before 4.12.14-16.94.1

kernel-azure-devel: before 4.12.14-16.94.1

kernel-azure-debugsource: before 4.12.14-16.94.1

kernel-azure-debuginfo: before 4.12.14-16.94.1

kernel-azure-base-debuginfo: before 4.12.14-16.94.1

kernel-azure-base: before 4.12.14-16.94.1

kernel-azure: before 4.12.14-16.94.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20221266-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

12) Race condition

EUVDB-ID: #VU63310

Risk: Low

CVSSv3.1: 6.1 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-23041

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a local user to bypass implemented security restrictions.

The vulnerability exists due to a race condition in blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p, kbdfront, and pvcalls ring buffers. A malicious backend can exploit the race condition and read or write data or perform a denial of service attack.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 12-SP5

kernel-source-azure: before 4.12.14-16.94.1

kernel-devel-azure: before 4.12.14-16.94.1

kernel-syms-azure: before 4.12.14-16.94.1

kernel-azure-devel: before 4.12.14-16.94.1

kernel-azure-debugsource: before 4.12.14-16.94.1

kernel-azure-debuginfo: before 4.12.14-16.94.1

kernel-azure-base-debuginfo: before 4.12.14-16.94.1

kernel-azure-base: before 4.12.14-16.94.1

kernel-azure: before 4.12.14-16.94.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20221266-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

13) Reachable Assertion

EUVDB-ID: #VU63311

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-23042

CWE-ID: CWE-617 - Reachable Assertion

Exploit availability: No

Description

The vulnerability allows a local user to bypass implemented security restrictions.

The vulnerability exists due to reachable assertion in the netfront ring buffer. A malicious backend can exploit the race condition and read or write data or perform a denial of service attack.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 12-SP5

kernel-source-azure: before 4.12.14-16.94.1

kernel-devel-azure: before 4.12.14-16.94.1

kernel-syms-azure: before 4.12.14-16.94.1

kernel-azure-devel: before 4.12.14-16.94.1

kernel-azure-debugsource: before 4.12.14-16.94.1

kernel-azure-debuginfo: before 4.12.14-16.94.1

kernel-azure-base-debuginfo: before 4.12.14-16.94.1

kernel-azure-base: before 4.12.14-16.94.1

kernel-azure: before 4.12.14-16.94.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20221266-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

14) Buffer overflow

EUVDB-ID: #VU62601

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-26490

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error within the st21nfca_connectivity_event_received() function in drivers/nfc/st21nfca/se.c in Linux kernel. A local user can run a specially crafted program to trigger buffer overflow and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 12-SP5

kernel-source-azure: before 4.12.14-16.94.1

kernel-devel-azure: before 4.12.14-16.94.1

kernel-syms-azure: before 4.12.14-16.94.1

kernel-azure-devel: before 4.12.14-16.94.1

kernel-azure-debugsource: before 4.12.14-16.94.1

kernel-azure-debuginfo: before 4.12.14-16.94.1

kernel-azure-base-debuginfo: before 4.12.14-16.94.1

kernel-azure-base: before 4.12.14-16.94.1

kernel-azure: before 4.12.14-16.94.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20221266-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

15) Use-after-free

EUVDB-ID: #VU63318

Risk: Low

CVSSv3.1: 5.3 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-26966

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to a use-after-free error in drivers/net/usb/sr9700.c in the Linux kernel. A remote attacker can pass specially crafted data and obtain sensitive information from heap memory.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 12-SP5

kernel-source-azure: before 4.12.14-16.94.1

kernel-devel-azure: before 4.12.14-16.94.1

kernel-syms-azure: before 4.12.14-16.94.1

kernel-azure-devel: before 4.12.14-16.94.1

kernel-azure-debugsource: before 4.12.14-16.94.1

kernel-azure-debuginfo: before 4.12.14-16.94.1

kernel-azure-base-debuginfo: before 4.12.14-16.94.1

kernel-azure-base: before 4.12.14-16.94.1

kernel-azure: before 4.12.14-16.94.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20221266-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

16) Heap-based buffer overflow

EUVDB-ID: #VU61672

Risk: Low

CVSSv3.1: 6.3 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2022-27666

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: Yes

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error within IPsec ESP transformation code in net/ipv4/esp4.c and net/ipv6/esp6.c in Linux kernel. A local unprivileged user can pass specially crafted data to the system, trigger a heap-based buffer overflow and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 12-SP5

kernel-source-azure: before 4.12.14-16.94.1

kernel-devel-azure: before 4.12.14-16.94.1

kernel-syms-azure: before 4.12.14-16.94.1

kernel-azure-devel: before 4.12.14-16.94.1

kernel-azure-debugsource: before 4.12.14-16.94.1

kernel-azure-debuginfo: before 4.12.14-16.94.1

kernel-azure-base-debuginfo: before 4.12.14-16.94.1

kernel-azure-base: before 4.12.14-16.94.1

kernel-azure: before 4.12.14-16.94.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20221266-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

17) Memory leak

EUVDB-ID: #VU63390

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-28356

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak in net/llc/af_llc.c component. A remote attacker can force the system to leak memory and perform denial of service attack.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 12-SP5

kernel-source-azure: before 4.12.14-16.94.1

kernel-devel-azure: before 4.12.14-16.94.1

kernel-syms-azure: before 4.12.14-16.94.1

kernel-azure-devel: before 4.12.14-16.94.1

kernel-azure-debugsource: before 4.12.14-16.94.1

kernel-azure-debuginfo: before 4.12.14-16.94.1

kernel-azure-base-debuginfo: before 4.12.14-16.94.1

kernel-azure-base: before 4.12.14-16.94.1

kernel-azure: before 4.12.14-16.94.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20221266-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

18) Double Free

EUVDB-ID: #VU63160

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-28388

CWE-ID: CWE-415 - Double Free

Exploit availability: No

Description

The vulnerability allows a local user to execute arbitrary code with elevated privileges.

The vulnerability exists due to boundary error in the usb_8dev_start_xmit in drivers/net/can/usb/usb_8dev.c. A local user can pass specially crafted data to the application, trigger double free error and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 12-SP5

kernel-source-azure: before 4.12.14-16.94.1

kernel-devel-azure: before 4.12.14-16.94.1

kernel-syms-azure: before 4.12.14-16.94.1

kernel-azure-devel: before 4.12.14-16.94.1

kernel-azure-debugsource: before 4.12.14-16.94.1

kernel-azure-debuginfo: before 4.12.14-16.94.1

kernel-azure-base-debuginfo: before 4.12.14-16.94.1

kernel-azure-base: before 4.12.14-16.94.1

kernel-azure: before 4.12.14-16.94.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20221266-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

19) Double Free

EUVDB-ID: #VU63162

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-28389

CWE-ID: CWE-415 - Double Free

Exploit availability: No

Description

The vulnerability allows a local user to execute arbitrary code with elevated privileges.

The vulnerability exists due to boundary error in mcba_usb_start_xmit in drivers/net/can/usb/mcba_usb.c. A local user can pass specially crafted data to the application, trigger double free error and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 12-SP5

kernel-source-azure: before 4.12.14-16.94.1

kernel-devel-azure: before 4.12.14-16.94.1

kernel-syms-azure: before 4.12.14-16.94.1

kernel-azure-devel: before 4.12.14-16.94.1

kernel-azure-debugsource: before 4.12.14-16.94.1

kernel-azure-debuginfo: before 4.12.14-16.94.1

kernel-azure-base-debuginfo: before 4.12.14-16.94.1

kernel-azure-base: before 4.12.14-16.94.1

kernel-azure: before 4.12.14-16.94.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20221266-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

20) Double Free

EUVDB-ID: #VU63164

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-28390

CWE-ID: CWE-415 - Double Free

Exploit availability: No

Description

The vulnerability allows a local user to execute arbitrary code with elevated privileges.

The vulnerability exists due to boundary error in ems_usb_start_xmit in drivers/net/can/usb/ems_usb.c. A local user can pass specially crafted data to the application, trigger double free error and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 12-SP5

kernel-source-azure: before 4.12.14-16.94.1

kernel-devel-azure: before 4.12.14-16.94.1

kernel-syms-azure: before 4.12.14-16.94.1

kernel-azure-devel: before 4.12.14-16.94.1

kernel-azure-debugsource: before 4.12.14-16.94.1

kernel-azure-debuginfo: before 4.12.14-16.94.1

kernel-azure-base-debuginfo: before 4.12.14-16.94.1

kernel-azure-base: before 4.12.14-16.94.1

kernel-azure: before 4.12.14-16.94.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20221266-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.