Code Injection in ghostscript (Alpine package)

1) Code Injection

EUVDB-ID: #VU22784

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2019-14869

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to improper input validation when processing Truetype fonts. A remote attacker can trick the use user to open a specially crafted document and execute arbitrary commands on the system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

ghostscript (Alpine package): 9.04-r0 - 9.26-r4

ghostscript (Alpine package):

CPE2.3

• cpe:2.3:o:alpine:ghostscript_alpine_package:9.04-r0:*:*:*:*:alpine_linux:*:2.3
• cpe:2.3:o:alpine:ghostscript_alpine_package:9.06-r0:*:*:*:*:alpine_linux:*:2.2
• cpe:2.3:o:alpine:ghostscript_alpine_package:9.06-r1:*:*:*:*:alpine_linux:*:2.4
• cpe:2.3:o:alpine:ghostscript_alpine_package::*:*:*:*:alpine_linux:*:*

External links

https://git.alpinelinux.org/aports/commit/?id=480d24500bc8704f9a65e6feae92135d49182275
https://git.alpinelinux.org/aports/commit/?id=3d949953ed023a00e502072af12541c64feb3494
https://git.alpinelinux.org/aports/commit/?id=d7d7d0f8fd4b586ec7469c101d322f011949610a

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, proof of concept for this vulnerability is available.