Ubuntu update for linux-ibm

Published: 2024-03-13

Risk	Medium
Patch available	YES
Number of vulnerabilities	8
CVE-ID	CVE-2021-44879 CVE-2023-22995 CVE-2023-4244 CVE-2023-51779 CVE-2023-51780 CVE-2023-51782 CVE-2023-6121 CVE-2024-0340
CWE-ID	CWE-476 CWE-20 CWE-416 CWE-362 CWE-125 CWE-665
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Ubuntu Operating systems & Components / Operating system linux-image-oracle-lts-20.04 (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-ibm-lts-20.04 (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-5.4.0-1119-oracle (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-5.4.0-1067-ibm (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-ibm (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-oracle (Ubuntu package) Operating systems & Components / Operating system package or component
Vendor	Canonical Ltd.

Security Bulletin

This security bulletin contains information about 8 vulnerabilities.

1) NULL pointer dereference

EUVDB-ID: #VU62483

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-2021-44879

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to a NULL pointer dereference error in the gc_data_segment() function in fs/f2fs/gc.c. A local user can mount a specially crafted f2fs image, trigger a NULL pointer dereference and perform a denial of service (DoS) attack.

Mitigation

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

Vulnerable software versions

Ubuntu: 18.04 - 20.04

linux-image-oracle-lts-20.04 (Ubuntu package): before 5.4.0.1119.112

linux-image-ibm-lts-20.04 (Ubuntu package): before 5.4.0.1067.96

linux-image-5.4.0-1119-oracle (Ubuntu package): before Ubuntu Pro

linux-image-5.4.0-1067-ibm (Ubuntu package): before Ubuntu Pro

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

linux-image-oracle (Ubuntu package): before Ubuntu Pro (Infra-only)

External links

http://ubuntu.com/security/notices/USN-6681-3

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) Input validation error

EUVDB-ID: #VU73767

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-2023-22995

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of user-supplied input within the dwc3_qcom_acpi_register_core() function in drivers/usb/dwc3/dwc3-qcom.c. A local user can execute arbitrary code on the system with elevated privileges.

Mitigation

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

Vulnerable software versions

Ubuntu: 18.04 - 20.04

linux-image-oracle-lts-20.04 (Ubuntu package): before 5.4.0.1119.112

linux-image-ibm-lts-20.04 (Ubuntu package): before 5.4.0.1067.96

linux-image-5.4.0-1119-oracle (Ubuntu package): before Ubuntu Pro

linux-image-5.4.0-1067-ibm (Ubuntu package): before Ubuntu Pro

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

linux-image-oracle (Ubuntu package): before Ubuntu Pro (Infra-only)

External links

http://ubuntu.com/security/notices/USN-6681-3

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) Use-after-free

EUVDB-ID: #VU82306

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-2023-4244

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 netfilter: nf_tables component. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.

Mitigation

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

Vulnerable software versions

Ubuntu: 18.04 - 20.04

linux-image-oracle-lts-20.04 (Ubuntu package): before 5.4.0.1119.112

linux-image-ibm-lts-20.04 (Ubuntu package): before 5.4.0.1067.96

linux-image-5.4.0-1119-oracle (Ubuntu package): before Ubuntu Pro

linux-image-5.4.0-1067-ibm (Ubuntu package): before Ubuntu Pro

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

linux-image-oracle (Ubuntu package): before Ubuntu Pro (Infra-only)

External links

http://ubuntu.com/security/notices/USN-6681-3

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: #VU85023

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-2023-51779

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 when handling bt_sock_ioctl in the Bluetooth subsystem. 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: 18.04 - 20.04

linux-image-oracle-lts-20.04 (Ubuntu package): before 5.4.0.1119.112

linux-image-ibm-lts-20.04 (Ubuntu package): before 5.4.0.1067.96

linux-image-5.4.0-1119-oracle (Ubuntu package): before Ubuntu Pro

linux-image-5.4.0-1067-ibm (Ubuntu package): before Ubuntu Pro

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

linux-image-oracle (Ubuntu package): before Ubuntu Pro (Infra-only)

External links

http://ubuntu.com/security/notices/USN-6681-3

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) Race condition

EUVDB-ID: #VU85024

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-2023-51780

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 escalate privileges on the system.

The vulnerability exists due to a race condition in the ATM (Asynchronous Transfer Mode) subsystem in Linux kernel. A local user can exploit the race and escalate privileges on the system.

Mitigation

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

Vulnerable software versions

Ubuntu: 18.04 - 20.04

linux-image-oracle-lts-20.04 (Ubuntu package): before 5.4.0.1119.112

linux-image-ibm-lts-20.04 (Ubuntu package): before 5.4.0.1067.96

linux-image-5.4.0-1119-oracle (Ubuntu package): before Ubuntu Pro

linux-image-5.4.0-1067-ibm (Ubuntu package): before Ubuntu Pro

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

linux-image-oracle (Ubuntu package): before Ubuntu Pro (Infra-only)

External links

http://ubuntu.com/security/notices/USN-6681-3

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) Race condition

EUVDB-ID: #VU85029

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-2023-51782

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 escalate privileges on the system.

The vulnerability exists due to a race condition in the Amateur Radio X.25 PLP (Rose) support. A local user can exploit the race and escalate privileges on the system.

Mitigation

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

Vulnerable software versions

Ubuntu: 18.04 - 20.04

linux-image-oracle-lts-20.04 (Ubuntu package): before 5.4.0.1119.112

linux-image-ibm-lts-20.04 (Ubuntu package): before 5.4.0.1067.96

linux-image-5.4.0-1119-oracle (Ubuntu package): before Ubuntu Pro

linux-image-5.4.0-1067-ibm (Ubuntu package): before Ubuntu Pro

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

linux-image-oracle (Ubuntu package): before Ubuntu Pro (Infra-only)

External links

http://ubuntu.com/security/notices/USN-6681-3

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) Out-of-bounds read

EUVDB-ID: #VU84788

Risk: Medium

CVSSv3.1: 5.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-6121

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

The vulnerability exists due to a boundary condition in the NVMe-oF/TCP subsystem in the Linux kernel. A remote attacker can send specially crafted data to the system, trigger an out-of-bounds read error and read contents of memory.

Mitigation

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

Vulnerable software versions

Ubuntu: 18.04 - 20.04

linux-image-oracle-lts-20.04 (Ubuntu package): before 5.4.0.1119.112

linux-image-ibm-lts-20.04 (Ubuntu package): before 5.4.0.1067.96

linux-image-5.4.0-1119-oracle (Ubuntu package): before Ubuntu Pro

linux-image-5.4.0-1067-ibm (Ubuntu package): before Ubuntu Pro

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

linux-image-oracle (Ubuntu package): before Ubuntu Pro (Infra-only)

External links

http://ubuntu.com/security/notices/USN-6681-3

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.

8) Improper Initialization

EUVDB-ID: #VU86579

Risk: Low

CVSSv3.1: 3.3 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-0340

CWE-ID: CWE-665 - Improper Initialization

Exploit availability: No

Description

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

The vulnerability exists due to improper initialization within the vhost_new_msg() function in drivers/vhost/vhost.c in the Linux kernel vhost driver. A local user can run a specially crafted application to gain access to sensitive kernel information.

Mitigation

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

Vulnerable software versions

Ubuntu: 18.04 - 20.04

linux-image-oracle-lts-20.04 (Ubuntu package): before 5.4.0.1119.112

linux-image-ibm-lts-20.04 (Ubuntu package): before 5.4.0.1067.96

linux-image-5.4.0-1119-oracle (Ubuntu package): before Ubuntu Pro

linux-image-5.4.0-1067-ibm (Ubuntu package): before Ubuntu Pro

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

linux-image-oracle (Ubuntu package): before Ubuntu Pro (Infra-only)

External links

http://ubuntu.com/security/notices/USN-6681-3

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.