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Ubuntu 8.04 LTS / 8.10 / 9.04 / 9.10 : irssi regression (USN-929-2)

medium Nessus Plugin ID 45589

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Synopsis

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

Description

USN-929-1 fixed vulnerabilities in irssi. The upstream changes introduced a regression when using irssi with SSL and an IRC proxy.
This update fixes the problem.

We apologize for the inconvenience.

It was discovered that irssi did not perform certificate host validation when using SSL connections. An attacker could exploit this to perform a man in the middle attack to view sensitive information or alter encrypted communications. (CVE-2010-1155)

Aurelien Delaitre discovered that irssi could be made to dereference a NULL pointer when a user left the channel. A remote attacker could cause a denial of service via application crash. (CVE-2010-1156)

This update also adds SSLv3 and TLSv1 support, while disabling the old, insecure SSLv2 protocol.

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.

Solution

Update the affected irssi and / or irssi-dev packages.

See Also

https://usn.ubuntu.com/929-2/

Plugin Details

Severity: Medium

ID: 45589

File Name: ubuntu_USN-929-2.nasl

Version: 1.9

Type: local

Agent: unix

Published: 4/21/2010

Updated: 9/19/2019

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.8

CVSS v2

Risk Factor: Medium

Base Score: 6.8

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

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:9.04, cpe:/o:canonical:ubuntu_linux:9.10, cpe:/o:canonical:ubuntu_linux:8.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:irssi-dev, cpe:/o:canonical:ubuntu_linux:8.10, p-cpe:/a:canonical:ubuntu_linux:irssi

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

Patch Publication Date: 4/20/2010

Vulnerability Publication Date: 4/16/2010

Reference Information

CVE: CVE-2010-1155, CVE-2010-1156

USN: 929-2