Ubuntu update for linux

Published: 2024-07-04

Risk	Medium
Patch available	YES
Number of vulnerabilities	10
CVE-ID	CVE-2021-33631 CVE-2023-6270 CVE-2022-0001 CVE-2024-2201 CVE-2024-23307 CVE-2024-24861 CVE-2024-26898 CVE-2023-52615 CVE-2024-26642 CVE-2024-26720
CWE-ID	CWE-190 CWE-416 CWE-200 CWE-1037 CWE-362 CWE-667 CWE-284 CWE-369
Exploitation vector	Local network
Public exploit	N/A
Vulnerable software	Ubuntu Operating systems & Components / Operating system linux-image-4.4.0-1133-aws (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-4.4.0-256-lowlatency (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-4.4.0-256-generic (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-4.4.0-1171-aws (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-4.4.0-1134-kvm (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-virtual-lts-xenial (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-lowlatency-lts-xenial (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-generic-lts-xenial (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-generic (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-aws (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-virtual (Ubuntu package) Operating systems & Components / Operating system package or component
Vendor	Canonical Ltd.

Security Bulletin

This security bulletin contains information about 10 vulnerabilities.

1) Integer overflow

EUVDB-ID: #VU86575

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-2021-33631

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

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

The vulnerability exists due to integer overflow when mounting a malicious filesystem. A local user can mount a specially crafted filesystem, trigger an integer overflow and execute arbitrary code.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 14.04 - 16.04

linux-image-4.4.0-1133-aws (Ubuntu package): before Ubuntu Pro

linux-image-4.4.0-256-lowlatency (Ubuntu package): before Ubuntu Pro

linux-image-4.4.0-256-generic (Ubuntu package): before Ubuntu Pro

linux-image-4.4.0-1171-aws (Ubuntu package): before Ubuntu Pro

linux-image-4.4.0-1134-kvm (Ubuntu package): before Ubuntu Pro

linux-image-virtual-lts-xenial (Ubuntu package): before Ubuntu Pro (Infra-only)

linux-image-lowlatency-lts-xenial (Ubuntu package): before Ubuntu Pro (Infra-only)

linux-image-generic-lts-xenial (Ubuntu package): before Ubuntu Pro (Infra-only)

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

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

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

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

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

CPE2.3

External links

https://ubuntu.com/security/notices/USN-6865-1

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) Use-after-free

EUVDB-ID: #VU91599

Risk: Low

CVSSv4.0: 4.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-6270

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 aoecmd_cfg_pkts() function in the ATA over Ethernet (AoE) driver. A local user can trigger a use-after-free error and escalate privileges on the system.