PT-2021-10688 · Gnu · Gnu Libredwg

Linhlhq · Published 2021-05-17 · Updated 2021-05-21 · CVE-2020-21843

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: GNU LibreDWG version 0.10

Description: A heap-based buffer overflow issue exists in GNU LibreDWG. The problem is related to the bit read RC function in the bits.c file.

Recommendations: For GNU LibreDWG version 0.10, consider restricting access to the bit read RC function in ../../src/bits.c until a patch is available. At the moment, there is no information about a newer version that contains a fix for this issue.

Exploit

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2020-21843

Affected Products

Gnu Libredwg

References · 5

• 🔥 https://github.com/LibreDWG/libredwg/issues/188#issuecomment-574493857 · Exploit
• https://osv.dev/vulnerability/CVE-2020-21843 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-21843 · Security Note
• https://t.me/cvenotify/14553 · Telegram Post
• http://gnu.com · Note