CVE-2021-39521

MEDIUM

libredwg < 0.10.1.3751 - Denial of Service via NULL Pointer Dereference in bit_read_BB

Title source: llm
STIX 2.1

Description

An issue was discovered in libredwg through v0.10.1.3751. A NULL pointer dereference exists in the function bit_read_BB() located in bits.c. It allows an attacker to cause Denial of Service.

References (1)

Core 1
Core References
Exploit, Issue Tracking, Patch, Third Party Advisory x_refsource_misc
https://github.com/LibreDWG/libredwg/issues/262

Scores

CVSS v3 6.5
EPSS 0.0024
EPSS Percentile 47.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Details

CWE
CWE-476
Status published
Products (1)
gnu/libredwg < 0.10.1.3751
Published Sep 20, 2021
Tracked Since Feb 18, 2026