Ubuntu update for linux-azure-6.5



Risk Low
Patch available YES
Number of vulnerabilities 5
CVE-ID CVE-2023-52600
CVE-2024-26589
CVE-2024-26591
CVE-2024-26581
CVE-2023-52603
CWE-ID CWE-416
CWE-119
CWE-476
CWE-20
CWE-129
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Ubuntu
Operating systems & Components / Operating system

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

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

linux-image-6.5.0-1019-azure-fde (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-6.5.0-1019-azure (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 5 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU88104

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-2023-52600

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 in fs/jfs/jfs_mount.c. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package linux-azure-6.5 to the latest version.

Vulnerable software versions

Ubuntu: 22.04

linux-image-azure-fde (Ubuntu package): before 6.5.0.1019.20~22.04.1

linux-image-azure (Ubuntu package): before 6.5.0.1019.20~22.04.1

linux-image-6.5.0-1019-azure-fde (Ubuntu package): before 6.5.0-1019.20~22.04.1

linux-image-6.5.0-1019-azure (Ubuntu package): before 6.5.0-1019.20~22.04.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-6743-3


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) Buffer overflow

EUVDB-ID: #VU88886

Risk: Low

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

CVE-ID: CVE-2024-26589

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error within the adjust_ptr_min_max_vals() function in kernel/bpf/verifier.c. A local user can crash the OS kernel.

Mitigation

Update the affected package linux-azure-6.5 to the latest version.

Vulnerable software versions

Ubuntu: 22.04

linux-image-azure-fde (Ubuntu package): before 6.5.0.1019.20~22.04.1

linux-image-azure (Ubuntu package): before 6.5.0.1019.20~22.04.1

linux-image-6.5.0-1019-azure-fde (Ubuntu package): before 6.5.0-1019.20~22.04.1

linux-image-6.5.0-1019-azure (Ubuntu package): before 6.5.0-1019.20~22.04.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-6743-3


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) NULL pointer dereference

EUVDB-ID: #VU88888

Risk: Low

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

CVE-ID: CVE-2024-26591

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 within the bpf_tracing_prog_attach() function in kernel/bpf/syscall.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Update the affected package linux-azure-6.5 to the latest version.

Vulnerable software versions

Ubuntu: 22.04

linux-image-azure-fde (Ubuntu package): before 6.5.0.1019.20~22.04.1

linux-image-azure (Ubuntu package): before 6.5.0.1019.20~22.04.1

linux-image-6.5.0-1019-azure-fde (Ubuntu package): before 6.5.0-1019.20~22.04.1

linux-image-6.5.0-1019-azure (Ubuntu package): before 6.5.0-1019.20~22.04.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-6743-3


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) Input validation error

EUVDB-ID: #VU88887

Risk: Low

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

CVE-ID: CVE-2024-26581

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of user-supplied input in net/netfilter/nft_set_rbtree.c. A locla user can perform a denial of service (DoS) attack.

Mitigation

Update the affected package linux-azure-6.5 to the latest version.

Vulnerable software versions

Ubuntu: 22.04

linux-image-azure-fde (Ubuntu package): before 6.5.0.1019.20~22.04.1

linux-image-azure (Ubuntu package): before 6.5.0.1019.20~22.04.1

linux-image-6.5.0-1019-azure-fde (Ubuntu package): before 6.5.0-1019.20~22.04.1

linux-image-6.5.0-1019-azure (Ubuntu package): before 6.5.0-1019.20~22.04.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-6743-3


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) Improper validation of array index

EUVDB-ID: #VU88885

Risk: Low

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

CVE-ID: CVE-2023-52603

CWE-ID: CWE-129 - Improper Validation of Array Index

Exploit availability: No

Description

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

The vulnerability exists due to improper validation of array index within the dtSplitRoot() function in fs/jfs/jfs_dtree.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Update the affected package linux-azure-6.5 to the latest version.

Vulnerable software versions

Ubuntu: 22.04

linux-image-azure-fde (Ubuntu package): before 6.5.0.1019.20~22.04.1

linux-image-azure (Ubuntu package): before 6.5.0.1019.20~22.04.1

linux-image-6.5.0-1019-azure-fde (Ubuntu package): before 6.5.0-1019.20~22.04.1

linux-image-6.5.0-1019-azure (Ubuntu package): before 6.5.0-1019.20~22.04.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-6743-3


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.



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