Buffer overflow in Gnu Libredwg

CVE-2020-21843

A heap based buffer overflow vulnerability exits in GNU LibreDWG 0.10 via bit_read_RC ../../src/bits.c:318.

Vulnerability class: Buffer Overflow

EPSS: 0.011 (62.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Gnu Libredwg — versions 0.10
N/a — versions n/a

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

Public proof-of-concept exploits

seviezhou/Kraken

References

af854a3a-2127-422b-91ae-364da2661108 (x_refsource_MISC, Not Applicable)
cve@mitre.org (Exploit, Patch, Third Party Advisory, x_refsource_MISC, Issue Tracking)

Frequently asked questions

What is CVE-2020-21843?: CVE-2020-21843 is a high-severity vulnerability in Gnu Libredwg, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2021-05-17.
How severe is CVE-2020-21843?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2020-21843 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.