libheif is a HEIF and AVIF file format decoder and encoder. In 1.23.1 and earlier, crafted grid, iovl, and iden reference graphs can repeatedly decode the same base image because processed_ids is copied per branch and ImageItem::decode_image() has no shared operation budget. This vulnerability is fixed in 1.23.2.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
Weakness Type (CWE)
References 3
https://github.com/strukturag/libheif/commit/30b52a4e829efe0ee6d7208e8500b99f66…
security-advisories@github.com
https://github.com/strukturag/libheif/releases/tag/v1.23.2
security-advisories@github.com
https://github.com/strukturag/libheif/security/advisories/GHSA-x8xm-cm2c-cfc8
security-advisories@github.com