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Debian LTS: Security Advisory for librecad (DLA-2838-1)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
The remote host is missing an update for the 'librecad' package(s) announced via the DLA-2838-1 advisory.
Insight
Insight
Several vulnerabilities were discovered in LibreCAD, an application for computer aided design (CAD) in two dimensions. An attacker could trigger code execution through malicious .dwg and .dxf files. CVE-2021-21898 A code execution vulnerability exists in the dwgCompressor::decompress18() functionality of LibreCad libdxfrw. A specially-crafted .dwg file can lead to an out-of-bounds write. CVE-2021-21899 A code execution vulnerability exists in the dwgCompressor::copyCompBytes21 functionality of LibreCad libdxfrw. A specially-crafted .dwg file can lead to a heap buffer overflow. CVE-2021-21900 A code execution vulnerability exists in the dxfRW::processLType() functionality of LibreCad libdxfrw. A specially-crafted .dxf file can lead to a use-after-free vulnerability.
Affected Software
Affected Software
'librecad' package(s) on Debian Linux.
Detection Method
Detection Method
Checks if a vulnerable package version is present on the target host.
Solution
Solution
For Debian 9 stretch, these problems have been fixed in version 2.1.2-1+deb9u2. We recommend that you upgrade your librecad packages.