Description
Libpff through 20260926 contains a heap out-of-bounds read vulnerability in libpff_table_read_values_array because a 7c column definition's values_array_size is not checked against remaining buffer bytes. Attackers can supply a crafted PST, OST or PAB file to make applications read adjacent heap memory into record entry values or crash.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| libyal | libpff | ≤ 20260926 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | libpff | No fix yet | — |
| Ubuntu 26.04 LTS | libpff | No fix yet | — |
| Ubuntu 24.04 LTS | libpff | No fix yet | — |
| Ubuntu 22.04 LTS | libpff | No fix yet | — |
| Ubuntu 20.04 LTS | libpff | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | libpff | No fix yet | — |
| Ubuntu 16.04 LTS | libpff | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | libpff | 20261030-1.1 | openSUSE-SU-2026:12498-1 |
Advisories 1
- openSUSE-SU-2026:12498-1 libpff-devel-20261030-1.1 on GA media SUSE / openSUSE Security Updates · Nov 10, 2026
References
- GitHub Issue #172 issue-tracking
- https://github.com/libyal/libpff product
- https://github.com/libyal/libpff/commit/cb83eb38ffdbdfe2c69238fe7ce481ddc8513266 patch
- https://github.com/libyal/libpff/blob/20260926/libpff/libpff_table.c#L8858-L8895 technical-description
- https://hackmd.io/@haindpwn/libpff-table-parsing-oob-reads third-party-advisory
- VulnCheck Advisory: libpff through 20260926 Heap Out-of-Bounds Read via libpff_table_read_values_array third-party-advisory