CVE-2020-15904
unknown
CVSS v3
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CVSS v4 NEW
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VIR risk
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Description
A buffer overflow in the patching routine of bsdiff4 before 1.2.0 allows an attacker to write to heap memory (beyond allocated bounds) via a crafted patch file.
Predictions
Exploit likelihood
20%
Patch ETA
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Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
References
- https://nvd.nist.gov/vuln/detail/CVE-2020-15904
- https://github.com/ilanschnell/bsdiff4/commit/49a4cee2feef7deaf9d89e5e793a8824930284d7
- https://github.com/ilanschnell/bsdiff4
- https://github.com/ilanschnell/bsdiff4/blob/9a84c2ee01f5ba0742d18c9f3b3d5244ae7fb302/CHANGELOG.txt#L30-L31
- https://github.com/ilanschnell/bsdiff4/blob/master/CHANGELOG.txt
- https://github.com/pypa/advisory-database/tree/main/vulns/bsdiff4/PYSEC-2020-30.yaml
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.