GHSA-9f2v-576g-7mp5MediumCVSS 6.1
Libyal libpff through 20260926 contains an integer underflow in...
🔗 CVE IDs covered (1)
📋 Description
Libyal libpff through 20260926 contains an integer underflow in libpff_record_entry_get_multi_value() that allows attackers to trigger heap out-of-bounds reads via non-monotonic multi-value offsets. Attackers can craft PST, OST or PAB files with decreasing PT_MV_STRING8, PT_MV_UNICODE or PT_MV_BINARY offsets to crash libpff, pypff or pffexport and expose adjacent heap memory.
🔗 References (6)
- https://nvd.nist.gov/vuln/detail/CVE-2026-110598
- https://github.com/libyal/libpff/blob/03545511ab7a7a609e50ec715bdd3985c3be71c5/libpff/libpff_multi_value.c#L207-L271
- https://github.com/libyal/libpff/blob/03545511ab7a7a609e50ec715bdd3985c3be71c5/libpff/libpff_record_entry.c#L2825-L2874
- https://hackmd.io/@haind-pwn/libpff-multivalue-offset-underflow-oob-read
- https://www.vulncheck.com/advisories/libyal-libpff-through-20260926-heap-out-of-bounds-read-via-libpff-record-entry-get-multi-value
- https://github.com/advisories/GHSA-9f2v-576g-7mp5