Ubuntu 10.04 LTS / 10.10 / 11.04 : kde4libs vulnerability (USN-1248-1)

medium Nessus Plugin ID 56647


The remote Ubuntu host is missing one or more security-related patches.


Tim Brown discovered that KSSL in KDE-Libs did not properly perform input validation when displaying the common name (CN) for an SSL certificate. An attacker could exploit this to spoof the common name which could be used in an attack to trick the user into accepting a fraudulent certificate. This issue only affected Ubuntu 10.04 LTS and Ubuntu 10.10. (CVE-2011-3365)

It was discovered that KIO in KDE-Libs did not properly perform input validation during proxy authentication. An attacker could exploit this to modify displaying of the realm and proxy URL.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.


Update the affected kdelibs5 and / or libkio5 packages.

See Also


Plugin Details

Severity: Medium

ID: 56647

File Name: ubuntu_USN-1248-1.nasl

Version: 1.10

Type: local

Agent: unix

Published: 10/26/2011

Updated: 9/19/2019

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent

Risk Information


Risk Factor: Low

Score: 3.4


Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N

Temporal Vector: E:U/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:kdelibs5, p-cpe:/a:canonical:ubuntu_linux:libkio5, cpe:/o:canonical:ubuntu_linux:10.04:-:lts, cpe:/o:canonical:ubuntu_linux:10.10, cpe:/o:canonical:ubuntu_linux:11.04

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 10/25/2011

Vulnerability Publication Date: 11/29/2011

Reference Information

CVE: CVE-2011-3365

BID: 49925

USN: 1248-1