Input validation error in file (Alpine package)

1) Input validation error

EUVDB-ID: #VU32500

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-2014-3538

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (CPU consumption) via a crafted file that triggers backtracking during processing of an awk rule.

Mitigation

Install update from vendor's website.

Vulnerable software versions

file (Alpine package): 5.17-r0 - 5.18-r0

CPE2.3

• cpe:2.3:o:alpine:file_alpine_package:5.17-r0:*:*:*:*:alpine_linux:*:2.4
• cpe:2.3:o:alpine:file_alpine_package:5.18-r0:*:*:*:*:alpine_linux:*:2.7

External links

https://git.alpinelinux.org/aports/commit/?id=e43d903639e7be758857809128fee4f9c3d6f95f
https://git.alpinelinux.org/aports/commit/?id=c185e52d06208049c6776f7e80cd0bc81bfbb1f2
https://git.alpinelinux.org/aports/commit/?id=1b61a767ec46a4a7eb1d76f2e4459de38eb97c28
https://git.alpinelinux.org/aports/commit/?id=eae47f6d919fafbbd2dd077106f5558a67e59a39
https://git.alpinelinux.org/aports/commit/?id=17ef6c9a8874eebd2fac041843bbb1f72bdb2585
https://git.alpinelinux.org/aports/commit/?id=1faa3f503104ad3e8cb9273cc73b15894e48c650

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.