CVE-2023-36274 — LibreDWG v0

LibreDWG v0.11 to v0.12.5 was discovered to contain a heap buffer overflow via the function bit_write_TF at bits.c.

01What is this vulnerability?

LibreDWG v0.11 to v0.12.5 was discovered to contain a heap buffer overflow via the function bit_write_TF at bits.c.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-06-23T00:00:00.000Z
• Last modified: 2025-03-06T20:29:35.217Z

09References

• github.com — https://github.com/LibreDWG/libredwg/issues/677#BUG2
• github.com — https://github.com/LibreDWG/libredwg/commit/8651fa27dd2de731e706e2ba09f0d28e4e0d…
• github.com — https://github.com/LibreDWG/libredwg/blob/0.11/src/out_dxf.c#L1792