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CVE-2021-21900

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Date: November 18, 2021

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.

Language: C

Severity Score

Related Resources (12)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RDI3HCTCACMIC7I4ILB3NRU6DCMADI5H/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZTIAMP7QJDKV4ADDLR4GVVX2TXYLHVOZ/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RDI3HCTCACMIC7I4ILB3NRU6DCMADI5H/
https://security-tracker.debian.org/tracker/CVE-2021-21900
https://nvd.nist.gov/vuln/detail/CVE-2021-21900
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1351
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-21900
https://security.gentoo.org/glsa/202305-26
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZTIAMP7QJDKV4ADDLR4GVVX2TXYLHVOZ/
https://lists.debian.org/debian-lts-announce/2021/12/msg00002.html
https://www.debian.org/security/2022/dsa-5077
https://www.mend.io/vulnerability-database/CVE-2021-21900

Severity Score

Weakness Type (CWE)

Use After Free

CWE-416

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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