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Vulnerability DatabaseCVE-2021-27548
CVE-2021-27548:
NixOS vulnerability analysis and mitigation
Overview
A Null Pointer Dereference vulnerability (CVE-2021-27548) was identified in the XFAScanner::scanNode() function in XFAScanner.cc in xpdf version 4.03. This vulnerability was discovered and reported in early 2021 (NVD, CVE).
Technical details
The vulnerability is classified as a NULL Pointer Dereference (CWE-476) issue. According to the CVSS v3.1 scoring, it has a base score of 5.5 (MEDIUM) with the following vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H. The vulnerability requires user interaction and can be exploited through local access (NVD).
Impact
When successfully exploited, this vulnerability can lead to a denial of service condition through application crash. The vulnerability affects the availability of the system but does not impact confidentiality or integrity (NVD).
Mitigation and workarounds
The vulnerability has been addressed in subsequent releases. Users are advised to upgrade to a patched version of the software. For Debian systems, fixed versions are available in various distributions including bullseye, bookworm, trixie, and sid (Debian Security).
Additional resources
Source: This report was generated using AI
Related NixOS vulnerabilities:
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