Input validation error in subversion (Alpine package)

1) Input validation error

EUVDB-ID: #VU32572

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2013-4558

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote #AU# to perform service disruption.

The get_parent_resource function in repos.c in mod_dav_svn Apache HTTPD server module in Subversion 1.7.11 through 1.7.13 and 1.8.1 through 1.8.4, when built with assertions enabled and SVNAutoversioning is enabled, allows remote attackers to cause a denial of service (assertion failure and Apache process abort) via a non-canonical URL in a request, as demonstrated using a trailing /.

Mitigation

Install update from vendor's website.

Vulnerable software versions

subversion (Alpine package): 1.7.11-r0 - 1.7.13-r0

CPE2.3

• cpe:2.3:a:alpine:subversion_alpine_package:1.7.11-r0:*:*:*:*:alpine_linux:*:2.3
• cpe:2.3:a:alpine:subversion_alpine_package:1.7.13-r0:*:*:*:*:alpine_linux:*:2.6

External links

https://git.alpinelinux.org/aports/commit/?id=6d009de01b5f285b023c73ae643bfaaa0435e5af
https://git.alpinelinux.org/aports/commit/?id=48505d9504858193f17f61dde0799de9dfff7c6c
https://git.alpinelinux.org/aports/commit/?id=ddb14202fd187cde4f1bd4c5ffe322364b71eaa9
https://git.alpinelinux.org/aports/commit/?id=856ed3ee75cfe016fe76d83c1929d05ea7e09763

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.