PT-2021-22610 · Libredwg · Libredwg

Published 2021-09-20 · Updated 2021-09-24 · CVE-2021-39523

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: libredwg versions through v0.10.1.3751

Description: The issue is related to a NULL pointer dereference in the check POLYLINE handles() function, located in decode.c. This allows an attacker to cause Denial of Service.

Recommendations: For versions through v0.10.1.3751, consider disabling the check POLYLINE handles() function as a temporary workaround until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2021-39523

Affected Products

Libredwg

References · 4

• 🔥 https://github.com/LibreDWG/libredwg/issues/251 · Exploit
• https://osv.dev/vulnerability/CVE-2021-39523 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-39523 · Security Note
• https://t.me/cvenotify/21427 · Telegram Post