Input validation error in perl-pathtools (Alpine package)

1) Input validation error

EUVDB-ID: #VU33076

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2015-8607

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

The canonpath function in the File::Spec module in PathTools before 3.62, as used in Perl, does not properly preserve the taint attribute of data, which might allow context-dependent attackers to bypass the taint protection mechanism via a crafted string.

Mitigation

Install update from vendor's website.

Vulnerable software versions

perl-pathtools (Alpine package): 3.47-r0 - 3.47-r1

kamailio (Alpine package): 4.1.5-r3

CPE2.3

• cpe:2.3:a:alpine:perl-pathtools_alpine_package:3.47-r0:*:*:*:*:alpine_linux:*:3.1
• cpe:2.3:a:alpine:perl-pathtools_alpine_package:3.47-r1:*:*:*:*:alpine_linux:*:3.2
• cpe:2.3:a:alpine:kamailio_alpine_package:4.1.5-r3:*:*:*:*:alpine_linux:*:2.7

External links

https://git.alpinelinux.org/aports/commit/?id=492e7238af0da04bdbae2da53d8d81cd8ca407b0
https://git.alpinelinux.org/aports/commit/?id=a5ff302625a29f365cc4cf7c1097e7b32b06ca7b
https://git.alpinelinux.org/aports/commit/?id=9826cf80d4897c633bdf58e9a918a35184f8c09d

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.