Ubuntu update for KDE-Libs

1) Path traversal

EUVDB-ID: #VU20302

Risk: Medium

CVSSv4.0: 1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2016-6232

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences in KArchive before 5.24, as used in KDE Frameworks. A remote attacker can trick the victim to open a specially crafted archive and data write to arbitrary files via a ./ (dot dot slash) in a filename, related to KNewsstuff downloads.

Mitigation

Update the affected packages.

Ubuntu 15.10:

libkdecore5 4:4.14.13-0ubuntu1.1

Ubuntu 14.04 LTS:

libkdecore5 4:4.13.3-0ubuntu0.3

Ubuntu 12.04 LTS:

libkdecore5 4:4.8.5-0ubuntu0.5

Vulnerable software versions

kde4libs (Ubuntu package): 4:4.8.5-0ubuntu0.1 - 4:4.13.3-0ubuntu0.2

CPE2.3

• cpe:2.3:a:canonical:kde4libs_ubuntu_package:4:4.8.5-0ubuntu0.1:*:*:*:*:ubuntu:*:*
• cpe:2.3:a:canonical:kde4libs_ubuntu_package:4:4.8.5-0ubuntu0.2:*:*:*:*:ubuntu:*:*
• cpe:2.3:a:canonical:kde4libs_ubuntu_package:4:4.8.5-0ubuntu0.3:*:*:*:*:ubuntu:*:*

External links

https://usn.ubuntu.com/3042-1/

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.