Input validation error in subversion (Alpine package)

1) Input validation error

EUVDB-ID: #VU32289

Risk: Medium

CVSSv3.1: 5.7 [AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-2168

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows remote authenticated users 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 (NULL pointer dereference and crash) via a crafted header in a (1) MOVE or (2) COPY request, involving an authorization check.

Mitigation

Install update from vendor's website.

Vulnerable software versions

subversion (Alpine package): 1.8.4-r0 - 1.8.14-r0

CPE2.3

• cpe:2.3:o:alpine:subversion_alpine_package:1.8.10-r2:*:*:*:*:alpine_linux:*:
• cpe:2.3:o:alpine:subversion_alpine_package:1.8.9-r0:*:*:*:*:alpine_linux:*:
• cpe:2.3:o:alpine:subversion_alpine_package:1.8.14-r0:*:*:*:*:alpine_linux:*:

External links

http://git.alpinelinux.org/aports/commit/?id=fe1d1a2fab1c84836f19bfa20a7e548b8a6ac9dd
http://git.alpinelinux.org/aports/commit/?id=0d0b6cb451564d086ca34469198bd646490a1f51
http://git.alpinelinux.org/aports/commit/?id=bb0c450ee6bb7a95291723179e07be9cab71246d

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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