Ubuntu update for linux

Published: 2025-04-24

Risk	Low
Patch available	YES
Number of vulnerabilities	11
CVE-ID	CVE-2024-53237 CVE-2024-50256 CVE-2021-47119 CVE-2024-35958 CVE-2025-21700 CVE-2025-21703 CVE-2024-56651 CVE-2024-49974 CVE-2025-21702 CVE-2024-26915 CVE-2024-46826
CWE-ID	CWE-416 CWE-388 CWE-401 CWE-399 CWE-20 CWE-119
Exploitation vector	Local
Public exploit	N/A
Vulnerable software	Ubuntu Operating systems & Components / Operating system linux-image-virtual (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-oracle-lts-20.04 (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-oem-osp1 (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-oem (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-lowlatency (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-kvm (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-generic-lpae (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-generic (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-gcp-lts-20.04 (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-bluefield (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-azure-lts-20.04 (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-5.4.0-214-lowlatency (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-5.4.0-214-generic-lpae (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-5.4.0-214-generic (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-5.4.0-1149-azure (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-5.4.0-1147-gcp (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-5.4.0-1142-oracle (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-5.4.0-1131-kvm (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-5.4.0-1103-bluefield (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-5.4.0-1090-ibm (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-lowlatency-hwe-18.04 (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-virtual-hwe-18.04 (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-snapdragon-hwe-18.04 (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-generic-hwe-18.04 (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-oracle (Ubuntu package) Operating systems & Components / Operating system package or component
Vendor	Canonical Ltd.

Security Bulletin

This security bulletin contains information about 11 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU102069

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-2024-53237

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 __match_tty() and hci_conn_del_sysfs() functions in net/bluetooth/hci_sysfs.c. A local user can escalate privileges on the system.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

linux-image-virtual (Ubuntu package): before 5.4.0.214.207

linux-image-oracle-lts-20.04 (Ubuntu package): before 5.4.0.1142.136

linux-image-oem-osp1 (Ubuntu package): before 5.4.0.214.207

linux-image-oem (Ubuntu package): before 5.4.0.214.207

linux-image-lowlatency (Ubuntu package): before 5.4.0.214.207

linux-image-kvm (Ubuntu package): before 5.4.0.1131.127

linux-image-ibm-lts-20.04 (Ubuntu package): before 5.4.0.1090.119

linux-image-generic-lpae (Ubuntu package): before 5.4.0.214.207

linux-image-generic (Ubuntu package): before 5.4.0.214.207

linux-image-gcp-lts-20.04 (Ubuntu package): before 5.4.0.1147.149

linux-image-bluefield (Ubuntu package): before 5.4.0.1103.99

linux-image-azure-lts-20.04 (Ubuntu package): before 5.4.0.1149.143

linux-image-5.4.0-214-lowlatency (Ubuntu package): before Ubuntu Pro

linux-image-5.4.0-214-generic-lpae (Ubuntu package): before 5.4.0-214.234

linux-image-5.4.0-214-generic (Ubuntu package): before Ubuntu Pro

linux-image-5.4.0-1149-azure (Ubuntu package): before Ubuntu Pro

linux-image-5.4.0-1147-gcp (Ubuntu package): before 5.4.0-1147.156

linux-image-5.4.0-1142-oracle (Ubuntu package): before Ubuntu Pro

linux-image-5.4.0-1131-kvm (Ubuntu package): before 5.4.0-1131.140

linux-image-5.4.0-1103-bluefield (Ubuntu package): before 5.4.0-1103.110

linux-image-5.4.0-1090-ibm (Ubuntu package): before 5.4.0-1090.95

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-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-7461-1

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 error handling

EUVDB-ID: #VU100192

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-2024-50256

CWE-ID: CWE-388 - Error Handling

Exploit availability: No

Description

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

The vulnerability exists due to improper error handling within the nf_reject6_fill_skb_dst() and nf_send_reset6() functions in net/ipv6/netfilter/nf_reject_ipv6.c. A local user can perform a denial of service (DoS) attack.