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Vulnerability DatabaseCVE-2021-30469

CVE-2021-30469: 
NixOS vulnerability analysis and mitigation

Overview

A vulnerability was discovered in PoDoFo version 0.9.7, identified as CVE-2021-30469. The flaw involves a use-after-free vulnerability in the PoDoFo::PdfVecObjects::Clear() function, which can be triggered by processing a specially crafted PDF file (NVD, RedHat Bugzilla).

Technical details

The vulnerability is classified as CWE-416 (Use After Free) with a CVSS v3.1 base score of 5.5 (Medium). The attack vector is local (AV:L), with low attack complexity (AC:L), requiring no privileges (PR:N) but user interaction (UI:R), and the scope is unchanged (S:U). The impact primarily affects availability with high severity (C:N/I:N/A:H) (NVD).

Impact

When successfully exploited, this vulnerability can lead to a denial of service condition in applications using the affected PoDoFo library. The impact is primarily focused on system availability, with no direct effect on confidentiality or integrity (NVD).

Mitigation and workarounds

The vulnerability affects PoDoFo version 0.9.7 and has been tracked in various Linux distributions including Fedora, EPEL-7, and Debian. Users are advised to update to newer versions of the software when available (Debian Tracker).

Additional resources

Source: This report was generated using AI

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