Ubuntu update for libarchive

1) Heap-based buffer overflow

EUVDB-ID: #VU88389

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-26256

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in libarchive. A remote attacker can trick the victim to open a specially crafted archive, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update the affected package libarchive to the latest version.

Vulnerable software versions

Ubuntu: 22.04 - 24.04

libarchive13 (Ubuntu package): before 3.6.2-1ubuntu1.1

libarchive13t64 (Ubuntu package): before 3.7.2-2ubuntu0.1

External links

http://ubuntu.com/security/notices/USN-6805-1

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.