CVE-2026-9504: GNU LibreDWG Dwggrep Utility dwggrep.c bit_convert_TU out-of-bounds

Description

A weakness has been identified in GNU LibreDWG up to 0.14. Affected is the function bit_convert_TU of the file programs/dwggrep.c of the component Dwggrep Utility. This manipulation causes out-of-bounds read. The attack needs to be launched locally. The exploit has been made available to the public and could be used for attacks. Patch name: be996bf2178a40e98720f18c2414815d244413db. Applying a patch is the recommended action to fix this issue.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

GNU LibreDWG

0.1affected
0.2affected
0.3affected
0.4affected
0.5affected
0.6affected
0.7affected
0.8affected
0.9affected
0.10affected
0.11affected
0.12affected
0.13affected
0.14affected

References

https://vuldb.com/vuln/365486 ↗
https://vuldb.com/vuln/365486/cti ↗
https://vuldb.com/submit/814261 ↗
https://github.com/LibreDWG/libredwg/issues/1246 ↗
https://github.com/HackC0der/CVE-Repos/blob/main/libredwg/libredwg_6d6a339_heap_overflow_bit_convert_TU.dwg ↗
https://github.com/LibreDWG/libredwg/commit/be996bf2178a40e98720f18c2414815d244413db ↗
https://www.gnu.org/ ↗