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Vulnerability DatabaseCVE-2020-27796
CVE-2020-27796:
NixOS vulnerability analysis and mitigation
Overview
A heap-based buffer over-read vulnerability was discovered in the invertptdynamic function of UPX version 3.96 and earlier (Debian Tracker).
Technical details
The vulnerability exists in the PackLinuxElf32::invertptdynamic function within plxelf.cpp. The issue manifests as a heap buffer overflow when reading beyond allocated memory boundaries, specifically reading 4 bytes at an invalid address location. The vulnerability is tracked as CWE-119 (Buffer Overflow) (NVD CNA Status).
Impact
The vulnerability could potentially lead to program crashes or denial of service conditions when processing malformed ELF files.
Mitigation and workarounds
The vulnerability has been fixed in newer versions of UPX. Users should upgrade to a patched version of the software (Debian Tracker).
Additional resources
Source: This report was generated using AI
Related NixOS vulnerabilities:
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