CVE-2021-21900

Public Exploit

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.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.29%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory debian.org Vendor Advisory gentoo.org
Affected: n/a LibreCAD
Published at:
Updated at:

References

Link Tags
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1351 exploit third party advisory broken link
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RDI3HCTCACMIC7I4ILB3NRU6DCMADI5H/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZTIAMP7QJDKV4ADDLR4GVVX2TXYLHVOZ/ vendor advisory
https://lists.debian.org/debian-lts-announce/2021/12/msg00002.html third party advisory mailing list
https://www.debian.org/security/2022/dsa-5077 third party advisory vendor advisory
https://security.gentoo.org/glsa/202305-26 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-21900?
CVE-2021-21900 has been scored as a high severity vulnerability.
How to fix CVE-2021-21900?
To fix CVE-2021-21900, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-21900 being actively exploited in the wild?
It is possible that CVE-2021-21900 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-21900?
CVE-2021-21900 affects n/a LibreCAD.
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