Ubuntu update for linux-intel-5.13



Risk High
Patch available YES
Number of vulnerabilities 16
CVE-ID CVE-2022-25636
CVE-2022-23960
CVE-2022-23222
CVE-2022-0847
CVE-2022-0492
CVE-2022-0185
CVE-2022-0001
CVE-2021-4083
CVE-2021-4090
CVE-2021-4155
CVE-2021-42327
CVE-2022-0330
CVE-2022-0435
CVE-2022-0516
CVE-2022-0742
CVE-2022-22942
CWE-ID CWE-122
CWE-1037
CWE-264
CWE-908
CWE-190
CWE-200
CWE-416
CWE-787
CWE-119
CWE-121
CWE-401
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Public exploit code for vulnerability #3 is available.
Vulnerability #4 is being exploited in the wild.
Public exploit code for vulnerability #5 is available.
Vulnerability #6 is being exploited in the wild.
Public exploit code for vulnerability #11 is available.
Vulnerability #16 is being exploited in the wild.
Vulnerable software
 Ubuntu
Operating systems & Components / Operating system

linux-image-intel (Ubuntu package)
Other

linux-image-5.13.0-1010-intel (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 16 vulnerabilities.

1) Heap-based buffer overflow

EUVDB-ID: #VU61271

Risk: Low

CVSSv4.0: 7.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2022-25636

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 in net/netfilter/nf_dup_netdev.c in the Linux kernel, related to nf_tables_offload. A local user can trigger a heap-based buffer overflow and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package linux-intel-5.13 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel (Ubuntu package): before 5.13.0.1010.11

linux-image-5.13.0-1010-intel (Ubuntu package): before 5.13.0-1010.10

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5362-1


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.

2) Processor optimization removal or modification of security-critical code

EUVDB-ID: #VU65007

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-23960

CWE-ID: CWE-1037 - Processor optimization removal or modification of security-critical code

Exploit availability: No

Description

The vulnerability allows a local user to obtain potentially sensitive information.

The vulnerability exists due to improper restrictions of cache speculation. A local user can leverage the shared branch history in the Branch History Buffer (BHB) to influence mispredicted branches and gain access to sensitive information.

The vulnerability was dubbed Spectre-BHB.

Mitigation

Update the affected package linux-intel-5.13 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel (Ubuntu package): before 5.13.0.1010.11

linux-image-5.13.0-1010-intel (Ubuntu package): before 5.13.0-1010.10

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5362-1


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) Security restrictions bypass

EUVDB-ID: #VU59896

Risk: Low

CVSSv4.0: 6.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2022-23222

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: Yes

Description

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

The vulnerability exists due to availability of pointer arithmetic via certain *_OR_NULL pointer types in kernel/bpf/verifier.c in the Linux kernel. A local user can run a specially crafted program to execute arbitrary code with root privileges.

Mitigation

Update the affected package linux-intel-5.13 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel (Ubuntu package): before 5.13.0.1010.11

linux-image-5.13.0-1010-intel (Ubuntu package): before 5.13.0-1010.10

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5362-1


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.

4) Use of uninitialized resource

EUVDB-ID: #VU61110

Risk: Low

CVSSv4.0: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Clear]

CVE-ID: CVE-2022-0847

CWE-ID: CWE-908 - Use of Uninitialized Resource

Exploit availability: Yes

Description

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

The vulnerability exists due to usage of an uninitialized resources. A local user can overwrite arbitrary file in the page cache, even if the file is read-only, and execute arbitrary code on the system with elevated privileges.

The vulnerability was dubbed Dirty Pipe.

Mitigation

Update the affected package linux-intel-5.13 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel (Ubuntu package): before 5.13.0.1010.11

linux-image-5.13.0-1010-intel (Ubuntu package): before 5.13.0-1010.10

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5362-1


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?

Yes. This vulnerability is being exploited in the wild.

5) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU61245

Risk: Low

CVSSv4.0: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Clear]

CVE-ID: CVE-2022-0492

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: Yes

Description

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

The vulnerability exists due to a logic error within the cgroup_release_agent_write() function in  kernel/cgroup/cgroup-v1.c. A local user can use the cgroups v1 release_agent feature to escalate privileges and bypass the namespace isolation.

Mitigation

Update the affected package linux-intel-5.13 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel (Ubuntu package): before 5.13.0.1010.11

linux-image-5.13.0-1010-intel (Ubuntu package): before 5.13.0-1010.10

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5362-1


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, a fully functional exploit for this vulnerability is available.

6) Integer overflow

EUVDB-ID: #VU59695

Risk: Low

CVSSv4.0: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Clear]

CVE-ID: CVE-2022-0185

CWE-ID: CWE-190 - Integer overflow

Exploit availability: Yes

Description

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

The vulnerability exists due to integer overflow in the legacy_parse_param() function in fs/fs_context.c in Linux kernel. A local user can tun a specially crafted program to trigger integer overflow and execute arbitrary code with root privileges.


Mitigation

Update the affected package linux-intel-5.13 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel (Ubuntu package): before 5.13.0.1010.11

linux-image-5.13.0-1010-intel (Ubuntu package): before 5.13.0-1010.10

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5362-1


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?

Yes. This vulnerability is being exploited in the wild.

7) Information disclosure

EUVDB-ID: #VU61198

Risk: Low

CVSSv4.0: 1.9 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-0001

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 non-transparent sharing of branch predictor selectors between contexts. A local user can gain unauthorized access to sensitive information on the system.

Mitigation

Update the affected package linux-intel-5.13 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel (Ubuntu package): before 5.13.0.1010.11

linux-image-5.13.0-1010-intel (Ubuntu package): before 5.13.0-1010.10

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5362-1


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) Use-after-free

EUVDB-ID: #VU61246

Risk: Low

CVSSv4.0: 4.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-4083

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error within the Linux kernel's garbage collection for Unix domain socket file handlers. A local user can call close() and fget() simultaneously and can potentially trigger a race condition, which in turn leads to a use-after-free error and allows privilege escalation.

Mitigation

Update the affected package linux-intel-5.13 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel (Ubuntu package): before 5.13.0.1010.11

linux-image-5.13.0-1010-intel (Ubuntu package): before 5.13.0-1010.10

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5362-1


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) Out-of-bounds write

EUVDB-ID: #VU92750

Risk: Low

CVSSv4.0: 5.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-4090

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a local user to read and manipulate data.

An out-of-bounds (OOB) memory write flaw was found in the NFSD in the Linux kernel. Missing sanity may lead to a write beyond bmval[bmlen-1] in nfsd4_decode_bitmap4 in fs/nfsd/nfs4xdr.c. In this flaw, a local attacker with user privilege may gain access to out-of-bounds memory, leading to a system integrity and confidentiality threat.

Mitigation

Update the affected package linux-intel-5.13 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel (Ubuntu package): before 5.13.0.1010.11

linux-image-5.13.0-1010-intel (Ubuntu package): before 5.13.0-1010.10

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5362-1


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) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU59812

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-4155

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

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

The vulnerability exists due to the OS kernel does not impose correctly security restrictions. A local user can gain access to sensitive information on the system.

Mitigation

Update the affected package linux-intel-5.13 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel (Ubuntu package): before 5.13.0.1010.11

linux-image-5.13.0-1010-intel (Ubuntu package): before 5.13.0-1010.10

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5362-1


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) Out-of-bounds write

EUVDB-ID: #VU92411

Risk: Low

CVSSv4.0: 7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2021-42327

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: Yes

Description

The vulnerability allows a local privileged user to execute arbitrary code.

The vulnerability exists due to out-of-bounds write error. A local privileged user can execute arbitrary code.

Mitigation

Update the affected package linux-intel-5.13 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel (Ubuntu package): before 5.13.0.1010.11

linux-image-5.13.0-1010-intel (Ubuntu package): before 5.13.0-1010.10

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5362-1


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.

12) Buffer overflow

EUVDB-ID: #VU60988

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-0330

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 random memory access flaw caused by a missing TLB flush in Linux kernel GPU i915 kernel driver functionality. A local user can execute arbitrary code on the system with elevated privileges.

Mitigation

Update the affected package linux-intel-5.13 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel (Ubuntu package): before 5.13.0.1010.11

linux-image-5.13.0-1010-intel (Ubuntu package): before 5.13.0-1010.10

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5362-1


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) Stack-based buffer overflow

EUVDB-ID: #VU61216

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-0435

CWE-ID: CWE-121 - Stack-based buffer overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in the Linux kernel networking module for the Transparent Inter-Process Communication (TIPC) protocol. A remote unauthenticated attacker can send specially crafted traffic to the system, trigger a stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system but requires that the TIPC bearer is set up.

Mitigation

Update the affected package linux-intel-5.13 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel (Ubuntu package): before 5.13.0.1010.11

linux-image-5.13.0-1010-intel (Ubuntu package): before 5.13.0-1010.10

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5362-1


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.

14) Out-of-bounds write

EUVDB-ID: #VU61247

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-0516

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error in kvm_s390_guest_sida_op() function in the arch/s390/kvm/kvm-s390.c in KVM for s390 in the Linux kernel. A local user can trigger an out-of-bounds write and escalate privileges on the system.

Mitigation

Update the affected package linux-intel-5.13 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel (Ubuntu package): before 5.13.0.1010.11

linux-image-5.13.0-1010-intel (Ubuntu package): before 5.13.0-1010.10

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5362-1


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) Memory leak

EUVDB-ID: #VU61392

Risk: High

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-0742

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 within igmp6_event_query() and igmp6_event_report() functions in Linux kernel when handling ICMPv6 packets. A remote attacker can flood the system with ICMPv6 messages of type 130 and 131 to cause out-of-memory condition and perform a denial of service (DoS) attack.

Mitigation

Update the affected package linux-intel-5.13 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel (Ubuntu package): before 5.13.0.1010.11

linux-image-5.13.0-1010-intel (Ubuntu package): before 5.13.0-1010.10

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5362-1


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.

16) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU61217

Risk: Low

CVSSv4.0: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Clear]

CVE-ID: CVE-2022-22942

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: Yes

Description

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

The vulnerability exists due to an error in the vmwgfx driver in Linux kernel. A local unprivileged user can gain access to files opened by other processes on the system through a dangling 'file' pointer.

Exploiting this vulnerability requires an attacker to have access to either /dev/dri/card0 or /dev/dri/rendererD128 and be able to issue an ioctl() on the resulting file descriptor.

Mitigation

Update the affected package linux-intel-5.13 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel (Ubuntu package): before 5.13.0.1010.11

linux-image-5.13.0-1010-intel (Ubuntu package): before 5.13.0-1010.10

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5362-1


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?

Yes. This vulnerability is being exploited in the wild.



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