Description
Libyal libesedb through 20260704 contains a heap out-of-bounds read vulnerability in libesedb_record_get_multi_value() that allows attackers to read past buffers via unbounded multi-value offset tables. Attackers can supply a crafted ESE/EDB database processed by esedbexport to crash the application or expose up to about 32 KiB of adjacent heap memory.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| libyal | libesedb | ≤ 20260704 | — |
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.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | libesedb | No fix yet | — |
| Debian 13 | libesedb | No fix yet | — |
| Debian 12 | libesedb | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | libesedb | No fix yet | — |
| Ubuntu 26.04 LTS | libesedb | No fix yet | — |
| Ubuntu 24.04 LTS | libesedb | No fix yet | — |
| Ubuntu 22.04 LTS | libesedb | No fix yet | — |
| Ubuntu 20.04 LTS | libesedb | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | libesedb | No fix yet | — |
| Ubuntu 16.04 LTS | libesedb | No fix yet | — |
References
- https://hackmd.io/@haind-pwn/libesedb-multi-value-offset-table-oob-read technical-description exploit
- https://github.com/libyal/libesedb/blob/cf49b6d420d4a44dcd6355bc0d6b36f9f580f350/libesedb/libesedb_record.c#L3776-L3830 technical-description
- https://github.com/libyal/libesedb product
- VulnCheck Advisory: Libyal libesedb through 20260704 Heap Out-of-Bounds Read via libesedb_record_get_multi_value third-party-advisory