Ubuntu update for linux

1) Off-by-one

EUVDB-ID: #VU86019

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-2024-23849

CWE-ID: CWE-193 - Off-by-one Error

Exploit availability: No

Description

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

The vulnerability exists due to an off-by-one error within the rds_recv_track_latency() function in net/rds/af_rds.c. A local user can trigger an off-by-one error and perform a denial of service (DoS) attack.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

linux-image-raspi (Ubuntu package): before 5.4.0.1108.138

linux-image-gkeop (Ubuntu package): before 5.4.0.1091.89

linux-image-gcp-lts-20.04 (Ubuntu package): before 5.4.0.1128.130

linux-image-ibm-lts-20.04 (Ubuntu package): before 5.4.0.1071.100

linux-image-xilinx-zynqmp (Ubuntu package): before 5.4.0.1043.43

linux-image-virtual (Ubuntu package): before 5.4.0.181.179

linux-image-raspi2 (Ubuntu package): before 5.4.0.1108.138

linux-image-oracle-lts-20.04 (Ubuntu package): before 5.4.0.1123.116

linux-image-oem-osp1 (Ubuntu package): before Ubuntu Pro

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

linux-image-lowlatency (Ubuntu package): before 5.4.0.181.179

linux-image-kvm (Ubuntu package): before 5.4.0.1112.108

linux-image-gkeop-5.4 (Ubuntu package): before 5.4.0.1091.89

linux-image-generic-lpae (Ubuntu package): before 5.4.0.181.179

linux-image-generic (Ubuntu package): before 5.4.0.181.179

linux-image-azure-lts-20.04 (Ubuntu package): before 5.4.0.1129.123

linux-image-aws-lts-20.04 (Ubuntu package): before 5.4.0.1124.121

linux-image-5.4.0-181-lowlatency (Ubuntu package): before Ubuntu Pro

linux-image-5.4.0-181-generic-lpae (Ubuntu package): before 5.4.0-181.201

linux-image-5.4.0-181-generic (Ubuntu package): before Ubuntu Pro

linux-image-5.4.0-1129-azure (Ubuntu package): before Ubuntu Pro

linux-image-5.4.0-1128-gcp (Ubuntu package): before Ubuntu Pro

linux-image-5.4.0-1124-aws (Ubuntu package): before Ubuntu Pro

linux-image-5.4.0-1123-oracle (Ubuntu package): before Ubuntu Pro

linux-image-5.4.0-1112-kvm (Ubuntu package): before 5.4.0-1112.119

linux-image-5.4.0-1108-raspi (Ubuntu package): before Ubuntu Pro

linux-image-5.4.0-1091-gkeop (Ubuntu package): before 5.4.0-1091.95

linux-image-5.4.0-1071-ibm (Ubuntu package): before Ubuntu Pro

linux-image-5.4.0-1043-xilinx-zynqmp (Ubuntu package): before 5.4.0-1043.47

linux-image-5.4.0-1036-iot (Ubuntu package): before 5.4.0-1036.37

linux-image-lowlatency-hwe-18.04 (Ubuntu package): before Ubuntu Pro

linux-image-virtual-hwe-18.04 (Ubuntu package): before Ubuntu Pro

linux-image-snapdragon-hwe-18.04 (Ubuntu package): before Ubuntu Pro

linux-image-generic-hwe-18.04 (Ubuntu package): before Ubuntu Pro

linux-image-raspi-hwe-18.04 (Ubuntu package): before Ubuntu Pro

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

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

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

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

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

CPE2.3

External links

https://ubuntu.com/security/notices/USN-6767-1

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) Improper locking

EUVDB-ID: #VU90795

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-2024-26696

CWE-ID: CWE-667 - Improper Locking

Exploit availability: No

Description

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

The vulnerability exists due to improper locking within the nilfs_page_mkwrite() function in fs/nilfs2/file.c. A local user can perform a denial of service (DoS) attack.