Ubuntu update for linux-ibm



Published: 2023-06-22
Risk Medium
Patch available YES
Number of vulnerabilities 9
CVE-ID CVE-2022-4269
CVE-2023-1076
CVE-2023-1077
CVE-2023-1079
CVE-2023-1670
CVE-2023-1859
CVE-2023-1998
CVE-2023-25012
CVE-2023-2985
CWE-ID CWE-833
CWE-843
CWE-416
CWE-254
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Ubuntu
Operating systems & Components / Operating system

linux-image-5.19.0-1024-ibm (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-ibm (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 9 vulnerabilities.

1) Deadlock

EUVDB-ID: #VU73186

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-2022-4269

CWE-ID: CWE-833 - Deadlock

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to an error in the Linux kernel Traffic Control (TC) subsystem. A local user can use a specific network configuration (redirecting egress packets to ingress using TC action "mirred") to trigger a CPU soft lockup.

Mitigation

Update the affected package linux-ibm to the latest version.

Vulnerable software versions

Ubuntu: 22.10

linux-image-5.19.0-1024-ibm (Ubuntu package): before 5.19.0-1024.26

linux-image-ibm (Ubuntu package): before 5.19.0.1024.21

External links

http://ubuntu.com/security/notices/USN-6187-1


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) Type Confusion

EUVDB-ID: #VU72742

Risk: Low

CVSSv3.1: 5.8 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-1076

CWE-ID: CWE-843 - Type confusion

Exploit availability: No

Description

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

The vulnerability exists due to a type confusion error during initialization of TUN/TAP sockets. A local user can trigger a type confusion error and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package linux-ibm to the latest version.

Vulnerable software versions

Ubuntu: 22.10

linux-image-5.19.0-1024-ibm (Ubuntu package): before 5.19.0-1024.26

linux-image-ibm (Ubuntu package): before 5.19.0.1024.21

External links

http://ubuntu.com/security/notices/USN-6187-1


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) Type Confusion

EUVDB-ID: #VU72699

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-1077

CWE-ID: CWE-843 - Type confusion

Exploit availability: No

Description

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

The vulnerability exists due to a type confusion error within the pick_next_rt_entity() function pick_next_rt_entity(). A local user can trigger a type confusion error and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package linux-ibm to the latest version.

Vulnerable software versions

Ubuntu: 22.10

linux-image-5.19.0-1024-ibm (Ubuntu package): before 5.19.0-1024.26

linux-image-ibm (Ubuntu package): before 5.19.0.1024.21

External links

http://ubuntu.com/security/notices/USN-6187-1


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) Use-after-free

EUVDB-ID: #VU72741

Risk: Low

CVSSv3.1: 5.9 [CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-1079

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows an attacker to compromise the vulnerable system.

The vulnerability exists due to a use-after-free error within the asus_kbd_backlight_set() function when plugging in a malicious USB device. An attacker with physical access to the system can inject a malicious USB device, trigger a use-after-free error and execute arbitrary code.


Mitigation

Update the affected package linux-ibm to the latest version.

Vulnerable software versions

Ubuntu: 22.10

linux-image-5.19.0-1024-ibm (Ubuntu package): before 5.19.0-1024.26

linux-image-ibm (Ubuntu package): before 5.19.0.1024.21

External links

http://ubuntu.com/security/notices/USN-6187-1


Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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

5) Use-after-free

EUVDB-ID: #VU75450

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-1670

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 Xircom 16-bit PCMCIA (PC-card) Ethernet driver. A local user can trigger a use-after-free error and execute arbitrary code on the system.

Mitigation

Update the affected package linux-ibm to the latest version.

Vulnerable software versions

Ubuntu: 22.10

linux-image-5.19.0-1024-ibm (Ubuntu package): before 5.19.0-1024.26

linux-image-ibm (Ubuntu package): before 5.19.0.1024.21

External links

http://ubuntu.com/security/notices/USN-6187-1


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: #VU75769

Risk: Medium

CVSSv3.1: 6.6 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-1859

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a malicious guest to gain access to sensitive information or perform a denial of service (DoS) attack.

The vulnerability exists due to a use-after-free error within the xen_9pfs_front_removet() function in net/9p/trans_xen.c in Xen transport for 9pfs. A malicious guest VM can trigger a use-after-free error and gain access to sensitive information of the hypervisor or crash it.

Mitigation

Update the affected package linux-ibm to the latest version.

Vulnerable software versions

Ubuntu: 22.10

linux-image-5.19.0-1024-ibm (Ubuntu package): before 5.19.0-1024.26

linux-image-ibm (Ubuntu package): before 5.19.0.1024.21

External links

http://ubuntu.com/security/notices/USN-6187-1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

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

7) Security features bypass

EUVDB-ID: #VU75454

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-1998

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

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

The vulnerability exists due to incorrect implementation of the Spectre v2 SMT mitigations, related to calling prctl with PR_SET_SPECULATION_CTRL. An attacker can gain unauthorized access to kernel memory from userspace.

Mitigation

Update the affected package linux-ibm to the latest version.

Vulnerable software versions

Ubuntu: 22.10

linux-image-5.19.0-1024-ibm (Ubuntu package): before 5.19.0-1024.26

linux-image-ibm (Ubuntu package): before 5.19.0.1024.21

External links

http://ubuntu.com/security/notices/USN-6187-1


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: #VU71764

Risk: Low

CVSSv3.1: 4 [CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-25012

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows an attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a use-after-free error within the bigben_remove() function in drivers/hid/hid-bigbenff.c. An attacker with physical access to the system can attach a specially crafted USB device to the system and cause a denial of service condition.

Mitigation

Update the affected package linux-ibm to the latest version.

Vulnerable software versions

Ubuntu: 22.10

linux-image-5.19.0-1024-ibm (Ubuntu package): before 5.19.0-1024.26

linux-image-ibm (Ubuntu package): before 5.19.0.1024.21

External links

http://ubuntu.com/security/notices/USN-6187-1


Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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

9) Use-after-free

EUVDB-ID: #VU77495

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-2023-2985

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a use-after-free error within the hfsplus_put_super() function in fs/hfsplus/super.c. A local user can trigger a use-after-free error and crash the kernel.


Mitigation

Update the affected package linux-ibm to the latest version.

Vulnerable software versions

Ubuntu: 22.10

linux-image-5.19.0-1024-ibm (Ubuntu package): before 5.19.0-1024.26

linux-image-ibm (Ubuntu package): before 5.19.0.1024.21

External links

http://ubuntu.com/security/notices/USN-6187-1


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.



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