Incorrect calculation in graphicsmagick (Alpine package)

1) Incorrect calculation

EUVDB-ID: #VU18362

Risk: Low

CVSSv4.0: 0.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-11474

CWE-ID: CWE-682 - Incorrect Calculation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform denial of service (DoS) attack.

The vulnerability exists due to incorrect calculation within the ReadXWDImage() function in coders/xwd.c in XWD reader. A remote attacker can create a specially crafted XWD file, pass it to the application, trigger a floating-point exception and crash the affected application.

Mitigation

Install update from vendor's website.

Vulnerable software versions

graphicsmagick (Alpine package): 1.3.31-r0 - 1.3.34-r0

CPE2.3

• cpe:2.3:a:alpine:graphicsmagick_alpine_package:1.3.31-r0:*:*:*:*:alpine_linux:*:3.9
• cpe:2.3:a:alpine:graphicsmagick_alpine_package:1.3.31-r1:*:*:*:*:alpine_linux:*:3.9
• cpe:2.3:a:alpine:graphicsmagick_alpine_package:1.3.32-r0:*:*:*:*:alpine_linux:*:3.9

External links

https://git.alpinelinux.org/aports/commit/?id=d0ff5181c1c8b82644c23b856065eb40b0811dc3
https://git.alpinelinux.org/aports/commit/?id=6b4a2e3bab6c54afe6722bda8e75833c8d80778b
https://git.alpinelinux.org/aports/commit/?id=f2ad329cc3291f5c66a6c324a27a44cfe0c42c5e

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.