zip bomb

About this tag
A zip bomb is a malicious archive file designed to cause denial of service by consuming excessive system resources during extraction. Discussions on WindowsForum cover CVE-2024-0450, a vulnerability in Python's zipfile module that allowed quoted-overlap zip bombs to bypass detection. The patch causes zipfile to reject archives with overlapping entries, mitigating asymmetric resource consumption. While the attack requires local access, the risk extends to servers, CI pipelines, and appliances using Python for archive processing. The tag explores how zip bombs exploit ZIP metadata and the importance of patching Python and related tools to prevent resource exhaustion.

  1. CVE-2024-0450: Patch Stops Quoted Overlap Zip Bombs in Python ZipFile

    The discovery and coordinated patching of CVE-2024-0450 closes a subtle but consequential gap in CPython’s zipfile module: quoted‑overlap zip‑bombs that can weaponize compliant ZIP metadata to force excessive, asymmetric resource consumption during extraction. The Python Security Team, upstream...
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    • cpython zipfile cve 2024 0450 python security zip bomb
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    • Forum: Security Alerts