CVE-2021-36080

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

GNU LibreDWG 0.12.3.4163 through 0.12.3.4191 has a double-free in bit_chain_free (called from dwg_encode_MTEXT and dwg_encode_add_object).

GNU LibreDWG versiones 0.12.3.4163 hasta 0.12.3.4191 presenta un double-free en la función bit_chain_free (llamado desde dwg_encode_MTEXT y dwg_encode_add_object)

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-07-01 CVE Reserved
2021-07-01 CVE Published
2024-08-04 CVE Updated
2024-08-04 First Exploit
2024-11-03 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-415: Double Free

CAPEC

References (3)

URL	Tag	Source
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libredwg/OSV-2021-495.yaml	Third Party Advisory

URL	Date	SRC
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31724	2024-08-04

URL	Date	SRC
https://github.com/LibreDWG/libredwg/commit/9b6e0ff9ef02818df034fc42c3bd149a5ff89342	2021-07-08

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Gnu Search vendor "Gnu"		Libredwg Search vendor "Gnu" for product "Libredwg"				>= 0.12.3.4163 <= 0.12.3.4191 Search vendor "Gnu" for product "Libredwg" and version " >= 0.12.3.4163 <= 0.12.3.4191"		-		Affected