Code injection in evince (Alpine package)

1) Code injection

EUVDB-ID: #VU7546

Risk: High

CVSSv4.0: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber]

CVE-ID: CVE-2017-1000083

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to execute arbitrary commands.

The vulnerability exists due to insufficient sanitization of user-supplied data when processing tar comic book (cbt) files in evince. A remote attacker can create a speicially crafted "cbt" file, trick the victim into downloading it and execute arbitrary commands on vulnerable system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

evince (Alpine package): 3.24.0-r0 - 3.24.0-r1

CPE2.3

• cpe:2.3:o:alpine:evince_alpine_package:3.24.0-r0:*:*:*:*:alpine_linux:*:3.5
• cpe:2.3:o:alpine:evince_alpine_package:3.24.0-r1:*:*:*:*:alpine_linux:*:3.6

External links

https://git.alpinelinux.org/aports/commit/?id=eb152ccc8ef4c1e1e8d869a87b0d76c06b83114e
https://git.alpinelinux.org/aports/commit/?id=b7c7d5d8e7e510499224806a771120781d8aa58a
https://git.alpinelinux.org/aports/commit/?id=dccac760d7397f8dea6aa172e88d43f7933c019e
https://git.alpinelinux.org/aports/commit/?id=e2b8e287585adb44cd8bb5de8f084c395afd0af3

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. However, a fully functional exploit for this vulnerability is available.