Description
A security vulnerability has been detected in libyal libvmdk up to 3fdd7839758e9f44ef95e1dfccde8552b860a4fc. Affected is the function libvmdk_extent_table_get_extent_data_file_path of the file libvmdk/libvmdk_extent_table.c of the component Extent Data File Handler. The manipulation leads to memory corruption. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used. This product uses a rolling release model to deliver continuous updates. As a result, specific version information for affected or updated releases is not available. The identifier of the patch is 175d3fc0a0b961f362f16e7560a6169d7213e16b. Applying a patch is the recommended action to fix this issue.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| libyal | libvmdk | 3fdd7839758e9f44ef95e1dfccde8552b860a4fc | — |
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 | libvmdk | No fix yet | — |
| Debian 13 | libvmdk | No fix yet | — |
| Debian 12 | libvmdk | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | libvmdk | No fix yet | — |
| Ubuntu 26.04 LTS | libvmdk | No fix yet | — |
| Ubuntu 24.04 LTS | libvmdk | No fix yet | — |
| Ubuntu 22.04 LTS | libvmdk | No fix yet | — |
| Ubuntu 20.04 LTS | libvmdk | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | libvmdk | No fix yet | — |
| Ubuntu 16.04 LTS | libvmdk | No fix yet | — |
References
- VDB-431574 | libyal libvmdk Extent Data File libvmdk_extent_table.c libvmdk_extent_table_get_extent_data_file_path memory corruption vdb-entry technical-description
- VDB-431574 | CTI Indicators (IOB, IOC, IOA) signature permissions-required
- CVE-2026-123268 | CVE Analysis and Report third-party-advisory
- Submit #1028405 | libyal (Joachim Metz) libvmdk `396e1873a030ac535bf919f6707d5be57613ae08` Memory corruption third-party-advisory
- https://github.com/libyal/libvmdk/issues/39 issue-tracking
- https://github.com/user-attachments/files/33394147/01_memory_leak_poc.zip exploit
- https://github.com/libyal/libvmdk/commit/175d3fc0a0b961f362f16e7560a6169d7213e16b patch
- https://github.com/libyal/libvmdk/ product