Out-of-bounds read in Exiv2 - CVE-2021-29458
Published: December 22, 2023
Vulnerability identifier: #VU84709
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-29458
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Exiv2
Exiv2
Software vendor:
GNU
GNU
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition within the Exiv2::Internal::CrwMap::encode() function. A remote attacker can pass a specially crafted file to the application and perform a denial of service attack.
Remediation
Install update from vendor's website.
External links
- https://github.com/Exiv2/exiv2/pull/1536
- https://github.com/Exiv2/exiv2/security/advisories/GHSA-57jj-75fm-9rq5
- https://github.com/Exiv2/exiv2/issues/1530
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2XQT5F5IINTDYDAFGVGQZ7PMMLG7I5ZZ/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/P2A5GMJEXQ5Q76JK6F6VKK5JYCLVFGKN/
- https://lists.debian.org/debian-lts-announce/2023/01/msg00004.html