CVE-2022-44638

2022-11-0306:15:10

Alpine Linux Development Team

security.alpinelinux.org

libpixman

heap-based buffer overflow

rasterize_edges_8

integer overflow

pixman_sample_floor_y

unix

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

9.3 High

AI Score

Confidence

High

0.003 Low

EPSS

Percentile

71.9%

JSON

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.

OSVersionArchitecturePackageVersionFilename
Alpine3.13-mainnoarchpixman< 0.40.0-r3UNKNOWN
Alpine3.14-mainnoarchpixman< 0.40.0-r3UNKNOWN
Alpine3.15-mainnoarchpixman< 0.40.0-r4UNKNOWN
Alpine3.16-mainnoarchpixman< 0.40.0-r4UNKNOWN

OS	Version	Architecture	Package	Version	Filename
Alpine	3.13-main	noarch	pixman	< 0.40.0-r3	UNKNOWN
Alpine	3.14-main	noarch	pixman	< 0.40.0-r3	UNKNOWN
Alpine	3.15-main	noarch	pixman	< 0.40.0-r4	UNKNOWN
Alpine	3.16-main	noarch	pixman	< 0.40.0-r4	UNKNOWN