Information disclosure in graphicsmagick (Alpine package)

1) Information disclosure

EUVDB-ID: #VU33205

Risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2017-15277

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

ReadGIFImage in coders/gif.c in ImageMagick 7.0.6-1 and GraphicsMagick 1.3.26 leaves the palette uninitialized when processing a GIF file that has neither a global nor local palette. If the affected product is used as a library loaded into a process that operates on interesting data, this data sometimes can be leaked via the uninitialized palette.

Mitigation

Install update from vendor's website.

Vulnerable software versions

graphicsmagick (Alpine package): 1.3.26-r0 - 1.3.27-r0

CPE2.3

• cpe:2.3:a:alpine:graphicsmagick_alpine_package:1.3.26-r0:*:*:*:*:alpine_linux:*:3.6
• cpe:2.3:a:alpine:graphicsmagick_alpine_package:1.3.26-r1:*:*:*:*:alpine_linux:*:3.6
• cpe:2.3:a:alpine:graphicsmagick_alpine_package:1.3.26-r2:*:*:*:*:alpine_linux:*:3.6

External links

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.