Description
PhysicsFS through 3.2.0 contains an out-of-bounds read vulnerability in __PHYSFS_utf8codepoint() that allows attackers to read past name buffers via an off-by-one cursor advance on six-octet UTF-8 sequences. Attackers can supply a crafted archive with entry names ending in six-octet sequences, causing PHYSFS_utf8stricmp() and hashing to over-read and crash the application.
Metrics
CVSS 3.1 3.3/10
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:LWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| icculus | PhysicsFS | <= 3.2.0 |
References
- https://github.com/icculus/physfs/blob/release-3.2.0/src/physfs_unicode.c#L165-L187
- https://github.com/icculus/physfs/commit/8a90802778f14dea9c086fb5436839181a3222d5
- https://github.com/icculus/physfs/issues/79
- https://hackmd.io/@haind-pwn/physfs-utf8-decoder-overread
- https://www.vulncheck.com/advisories/physicsfs-through-3.2.0-out-of-bounds-read-via-physfs-utf8codepoint
Timeline
- Published
- Oct 14, 2026
- Last modified
- Nov 9, 2026
- NVD status
- Deferred