CVE-2022-44638

Published: Nov 3, 2022Modified: May 2, 2025

8.8

Vector

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

Exploitability: 2.8 / Impact: 5.9

Source: NVD

Description

In libpixman in Pixman before 0.42.2, there is an out-of-bounds write (aka heap-based buffer overflow) in rasterize_edges_8 due to an integer overflow in pixman_sample_floor_y.

Affected (6)

Products: Pixman: Pixman · Debian: Debian Linux · Fedoraproject: Fedora

1 product

1 product

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Pixman Pixman	Before 0.42.2

Configuration B

2 vulnerable

Vulnerable Software	Affected Versions
Debian Debian Linux	Version 10.0
Debian Debian Linux	Version 11.0

Configuration C

3 vulnerable

Vulnerable Software	Affected Versions
Fedoraproject Fedora	Version 35
Fedoraproject Fedora	Version 36
Fedoraproject Fedora	Version 37

Related CWEs

CWE-190

Integer Overflow or Wraparound

The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

References (16)

http://packetstormsecurity.com/files/170121/pixman-pixman_sample_floor_y-Integer-Overflow.html

Source: cve@mitre.org

ExploitThird Party Advisory

http://www.openwall.com/lists/oss-security/2022/11/05/1

Source: cve@mitre.org

Mailing List

https://gitlab.freedesktop.org/pixman/pixman/-/issues/63

Source: cve@mitre.org

ExploitIssue TrackingPatchThird Party Advisory

https://lists.debian.org/debian-lts-announce/2022/11/msg00008.html

Source: cve@mitre.org

Mailing ListThird Party Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AJ5VY2VYXE4WTRGQ6LMGLF6FV3SY37YE/

Source: cve@mitre.org

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BY4OPSIB33ETNUXZY2UPZ4NGQ3OKDY4D/

Source: cve@mitre.org

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IUJ2BULJTZ2BMSKQHB6US674P55UCWWS/

Source: cve@mitre.org

https://www.debian.org/security/2022/dsa-5276

Source: cve@mitre.org

Third Party Advisory

http://packetstormsecurity.com/files/170121/pixman-pixman_sample_floor_y-Integer-Overflow.html