CVE-2021-36080

HighCVSS 8.8/10Last modified Jun 17, 2026

Description

GNU LibreDWG 0.12.3.4163 through 0.12.3.4191 has a double-free in bit_chain_free (called from dwg_encode_MTEXT and dwg_encode_add_object).

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-415

Affected software

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

References

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31724Exploit, Issue Tracking, Patch, Third Party Advisory
https://github.com/LibreDWG/libredwg/commit/9b6e0ff9ef02818df034fc42c3bd149a5ff89342Patch, Third Party Advisory
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libredwg/OSV-2021-495.yamlThird Party Advisory
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31724Exploit, Issue Tracking, Patch, Third Party Advisory
https://github.com/LibreDWG/libredwg/commit/9b6e0ff9ef02818df034fc42c3bd149a5ff89342Patch, Third Party Advisory
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libredwg/OSV-2021-495.yamlThird Party Advisory

Timeline

Published: Jul 1, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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