#VU111143 Double free in libarchive - CVE-2025-5914

Vulnerability identifier: #VU111143

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-2025-5914

CWE-ID: CWE-415

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 archive_read_format_rar_seek_data() function. A remote attacker can pass specially crafted data to the application, trigger a double free error and execute arbitrary code on the target system.

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

Mitigation
Install updates from vendor's website.

Vulnerable software versions

libarchive: 3.0 - 3.7.9

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External links
https://bugzilla.redhat.com/show_bug.cgi?id=2370861
https://github.com/libarchive/libarchive/pull/2598
https://github.com/libarchive/libarchive/releases/tag/v3.8.0
https://github.com/libarchive/libarchive/pull/2598

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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.