CVE-2020-15904

Published: Jul 22, 2020Modified: Jun 17, 2026

7.8

Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitability: 1.8 / Impact: 5.9

Source: NVD

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.

Affected (1)

Products: Pypi: Bsdiff4

Pypi

1 product

Bsdiff4

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Pypi Bsdiff4	Before 1.2.0

Related CWEs

CWE-787

Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

References (4)

https://github.com/ilanschnell/bsdiff4/blob/master/CHANGELOG.txt

Source: cve@mitre.org

Release NotesThird Party Advisory

https://github.com/ilanschnell/bsdiff4/commit/49a4cee2feef7deaf9d89e5e793a8824930284d7

Source: cve@mitre.org

PatchThird Party Advisory

https://github.com/ilanschnell/bsdiff4/blob/master/CHANGELOG.txt

Source: af854a3a-2127-422b-91ae-364da2661108

Release NotesThird Party Advisory

https://github.com/ilanschnell/bsdiff4/commit/49a4cee2feef7deaf9d89e5e793a8824930284d7

Source: af854a3a-2127-422b-91ae-364da2661108

PatchThird Party Advisory

Timeline

No history available yet.