NULL pointer dereference in Exiv2 - CVE-2021-37616
Published: December 22, 2023
Vulnerability identifier: #VU84715
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-2021-37616
CWE-ID: CWE-476
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 NULL pointer dereference error in Exiv2::Internal::resolveLens0x8ff(). A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.
Remediation
Install updates from vendor's website.
External links
- https://github.com/Exiv2/exiv2/pull/1758
- https://github.com/Exiv2/exiv2/security/advisories/GHSA-54f7-vvj7-545w
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FMDT4PJB7P43WSOM3TRQIY3J33BAFVVE/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UYGDELIFFJWKUU7SO3QATCIXCZJERGAC/