#VU105904 Heap-based buffer overflow in libarchive - CVE-2024-57970

Vulnerability identifier: #VU105904

Vulnerability risk: High

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2024-57970

CWE-ID: CWE-122

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
libarchive
Client/Desktop applications / Software for archiving

Vendor: libarchive

Description

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

The vulnerability exists due to a boundary error within the header_gnu_longlink() function in archive_read_support_format_tar.c. A remote attacker can pass specially crafted .tar archive to the application, 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
Install update from vendor's website.

Vulnerable software versions

libarchive: 2.6.0 - 3.7.7

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External links
https://github.com/libarchive/libarchive/issues/2415
https://github.com/libarchive/libarchive/pull/2422
https://github.com/libarchive/libarchive/releases/tag/v3.7.8

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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.