CVE-2021-21900

Published: Nov 19, 2021Modified: Nov 21, 2024

8.8

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitability: 2.8 / Impact: 5.9

Source: NVD

Description

A code execution vulnerability exists in the dxfRW::processLType() functionality of LibreCad libdxfrw 2.2.0-rc2-19-ge02f3580. A specially-crafted .dxf file can lead to a use-after-free vulnerability. An attacker can provide a malicious file to trigger this vulnerability.

Affected (6)

Products: Librecad: Libdxfrw · Debian: Debian Linux · Fedoraproject: Fedora

1 product

1 product

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Librecad Libdxfrw	Version 2.2.0-rc2-19-ge02f3580

Configuration B

3 vulnerable

Vulnerable Software	Affected Versions
Debian Debian Linux	Version 10.0
Debian Debian Linux	Version 11.0
Debian Debian Linux	Version 9.0

Configuration C

2 vulnerable

Vulnerable Software	Affected Versions
Fedoraproject Fedora	Version 34
Fedoraproject Fedora	Version 35

Related CWEs

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (12)

https://lists.debian.org/debian-lts-announce/2021/12/msg00002.html

Source: talos-cna@cisco.com

Mailing ListThird Party Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RDI3HCTCACMIC7I4ILB3NRU6DCMADI5H/

Source: talos-cna@cisco.com

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZTIAMP7QJDKV4ADDLR4GVVX2TXYLHVOZ/

Source: talos-cna@cisco.com

https://security.gentoo.org/glsa/202305-26

Source: talos-cna@cisco.com

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1351

Source: talos-cna@cisco.com

Broken LinkExploitThird Party Advisory

https://www.debian.org/security/2022/dsa-5077

Source: talos-cna@cisco.com

Third Party Advisory

https://lists.debian.org/debian-lts-announce/2021/12/msg00002.html

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListThird Party Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RDI3HCTCACMIC7I4ILB3NRU6DCMADI5H/

Source: af854a3a-2127-422b-91ae-364da2661108

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZTIAMP7QJDKV4ADDLR4GVVX2TXYLHVOZ/

Source: af854a3a-2127-422b-91ae-364da2661108

https://security.gentoo.org/glsa/202305-26

Source: af854a3a-2127-422b-91ae-364da2661108

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1351

Source: af854a3a-2127-422b-91ae-364da2661108

Broken LinkExploitThird Party Advisory

https://www.debian.org/security/2022/dsa-5077

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

Timeline

No history available yet.