CVE-2020-15904

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.

CVSS v3 7.8 HIGH
CVSS v2.0 6.8 MEDIUM

7.8^/10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/ilanschnell/bsdiff4/blob/master/CHANGELOG.txt	Release Notes Third Party Advisory
https://github.com/ilanschnell/bsdiff4/commit/49a4cee2feef7deaf9d89e5e793a8824930284d7	Patch Third Party Advisory
https://github.com/ilanschnell/bsdiff4/blob/master/CHANGELOG.txt	Release Notes Third Party Advisory
https://github.com/ilanschnell/bsdiff4/commit/49a4cee2feef7deaf9d89e5e793a8824930284d7	Patch Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:pypi:bsdiff4:*:*:*:*:*:*:*:*

History

21 Nov 2024, 05:06

Type	Values Removed	Values Added
References	~~() https://github.com/ilanschnell/bsdiff4/blob/master/CHANGELOG.txt - Release Notes, Third Party Advisory~~	() https://github.com/ilanschnell/bsdiff4/blob/master/CHANGELOG.txt - Release Notes, Third Party Advisory
References	~~() https://github.com/ilanschnell/bsdiff4/commit/49a4cee2feef7deaf9d89e5e793a8824930284d7 - Patch, Third Party Advisory~~	() https://github.com/ilanschnell/bsdiff4/commit/49a4cee2feef7deaf9d89e5e793a8824930284d7 - Patch, Third Party Advisory

Information

Published : 2020-07-22 23:15

Updated : 2024-11-21 05:06

NVD link : CVE-2020-15904

Mitre link : CVE-2020-15904

CVE.ORG link : CVE-2020-15904

JSON object : View

Products Affected

pypi

bsdiff4

CWE

CWE-787

Out-of-bounds Write

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7.8 /10