Buffer overflow in Gnu Libredwg

CVE-2021-39522

An issue was discovered in libredwg through v0.10.1.3751. bit_wcs2len() in bits.c has a heap-based buffer overflow.

Vulnerability class: Buffer Overflow

EPSS: 0.011 (61.3th 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
N/a — versions n/a

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

Public proof-of-concept exploits

seviezhou/Kraken

References

cve@mitre.org (Exploit, Patch, Third Party Advisory, x_refsource_MISC, Issue Tracking)

Frequently asked questions

What is CVE-2021-39522?: CVE-2021-39522 is a high-severity vulnerability in Gnu Libredwg, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2021-09-20.
How severe is CVE-2021-39522?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2021-39522 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.