MEDIUM 6.9 NVD
CVE-2026-111133
libfsapfs through 20260921 contains an integer underflow in libfsapfs_key_encrypted_key_read_data() that allows attackers to trigger heap out-of-bounds reads vi
libfsapfs through 20260921 contains an integer underflow in libfsapfs_key_encrypted_key_read_data() that allows attackers to trigger heap out-of-bounds reads via crafted KEK attributes. Attackers can supply a crafted encrypted APFS image with malformed HMAC or wrapped KEK attribute lengths to crash fsapfsinfo, pyfsapfs, dfVFS or plaso and read adjacent heap memory before password checks.
References
- https://github.com/libyal/libfsapfs
- https://github.com/libyal/libfsapfs/blob/4c7c1c21f3cfc7d35f0b34b8a47f1f1562d27bbb/libfsapf
- https://github.com/libyal/libfsapfs/blob/4c7c1c21f3cfc7d35f0b34b8a47f1f1562d27bbb/libfsapf
- https://hackmd.io/@haind-pwn/libfsapfs-key-encrypted-key-attribute-oob-read
- https://www.vulncheck.com/advisories/libfsapfs-through-20260921-heap-out-of-bounds-read-vi
This medium severity vulnerability with a CVSS score of 6.9 was published on 2026-10-15 via NVD.
vulnfeed aggregates 14677 vulnerabilities from NVD, CISA KEV,
Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.