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2 vulnerabilities found for libfsapfs by libyal
CVE-2026-111133 (GCVE-0-2026-111133)
Vulnerability from nvd – Published: 2026-10-15 18:57 – Updated: 2026-10-15 19:45
VLAI
EPSS
VEX
Title
libfsapfs through 20260921 Heap Out-of-Bounds Read via libfsapfs_key_encrypted_key_read_data
Summary
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.
Severity
6.1 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 19:44 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://hackmd.io/@haind-pwn/libfsapfs-key-encryp… | technical-description |
| https://github.com/libyal/libfsapfs/blob/4c7c1c21… | technical-description |
| https://github.com/libyal/libfsapfs/blob/4c7c1c21… | technical-description |
| https://github.com/libyal/libfsapfs | product |
| https://www.vulncheck.com/advisories/libfsapfs-th… | third-party-advisory |
Impacted products
Date Public
2026-10-15 00:00
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CVE-2026-111133 (GCVE-0-2026-111133)
Vulnerability from cvelistv5 – Published: 2026-10-15 18:57 – Updated: 2026-10-15 19:45
VLAI
EPSS
VEX
Title
libfsapfs through 20260921 Heap Out-of-Bounds Read via libfsapfs_key_encrypted_key_read_data
Summary
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.
Severity
6.1 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 19:44 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://hackmd.io/@haind-pwn/libfsapfs-key-encryp… | technical-description |
| https://github.com/libyal/libfsapfs/blob/4c7c1c21… | technical-description |
| https://github.com/libyal/libfsapfs/blob/4c7c1c21… | technical-description |
| https://github.com/libyal/libfsapfs | product |
| https://www.vulncheck.com/advisories/libfsapfs-th… | third-party-advisory |
Impacted products
Date Public
2026-10-15 00:00
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