Input validation error in pixman (Alpine package)

1) Input validation error

EUVDB-ID: #VU33855

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2013-6425

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

Integer underflow in the pixman_trapezoid_valid macro in pixman.h in Pixman before 0.32.0, as used in X.Org server and cairo, allows context-dependent attackers to cause a denial of service (crash) via a negative bottom value.

Mitigation

Install update from vendor's website.

Vulnerable software versions

pixman (Alpine package): 0.16.0-r0 - 0.24.4-r0

CPE2.3

• cpe:2.3:a:alpine:pixman_alpine_package:0.16.0-r0:*:*:*:*:alpine_linux:*:1.9
• cpe:2.3:a:alpine:pixman_alpine_package:0.16.4-r0:*:*:*:*:alpine_linux:*:1.10
• cpe:2.3:a:alpine:pixman_alpine_package:0.18.2-r0:*:*:*:*:alpine_linux:*:2.0

External links

https://git.alpinelinux.org/aports/commit/?id=25a0f4dddd65de1f4cd50b2bb3ec1b2fa8a74bb3
https://git.alpinelinux.org/aports/commit/?id=946262a34cca91466bc1eaa3a85645e6537533fb
https://git.alpinelinux.org/aports/commit/?id=ab0a4bdc523fab2d066542a6feb0769ac718322c

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.