Vulnerability in libyal libpff

[ Description ]Official description

libpff through 20260926 contains an off-by-one bounds check in libpff_table_read_6c_record_entries that allows attackers to trigger a heap out-of-bounds read via crafted 6c table record entries. Attackers can supply crafted PST, OST or PAB files to applications like pffexport or pypff to read adjacent heap memory or cause crashes.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• github.com/libyal/libpff
• github.com/libyal/libpff/blob/20260926/libpff/libpff_table.c
• github.com/libyal/libpff/commit/cb83eb38ffdbdfe2c69238fe7ce481ddc8513266
• github.com/libyal/libpff/issues/172
• hackmd.io/@haindpwn/libpff-table-parsing-oob-reads
• www.vulncheck.com/advisories/libpff-through-20260926-heap-out-of-bounds-read-via-libpff…