Ubuntu 10.04 LTS / 12.04 LTS / 14.04 LTS : rsyslog vulnerabilities (USN-2381-1)

High Nessus Plugin ID 78261


The remote Ubuntu host is missing a security-related patch.


It was discovered that Rsyslog incorrectly handled invalid PRI values.
An attacker could use this issue to send malformed messages to the Rsyslog server and cause it to stop responding, resulting in a denial of service and possibly message loss. (CVE-2014-3634, CVE-2014-3683).

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 rsyslog package.

Plugin Details

Severity: High

ID: 78261

File Name: ubuntu_USN-2381-1.nasl

Version: $Revision: 1.8 $

Type: local

Agent: unix

Published: 2014/10/11

Modified: 2016/05/24

Dependencies: 12634

Risk Information

Risk Factor: High


Base Score: 7.5

Temporal Score: 5.9

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: CVSS2#E:POC/RL:OF/RC:ND

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:rsyslog, cpe:/o:canonical:ubuntu_linux:10.04:-:lts, cpe:/o:canonical:ubuntu_linux:12.04:-:lts, cpe:/o:canonical:ubuntu_linux:14.04

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2014/10/09

Reference Information

CVE: CVE-2014-3634, CVE-2014-3683

BID: 70187, 70243

OSVDB: 112338, 112596

USN: 2381-1