Ubuntu 8.04 LTS / 10.04 LTS / 10.10 / 11.04 : bind9 vulnerabilities (USN-1139-1)

medium Nessus Plugin ID 55101
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Synopsis

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

Description

It was discovered that Bind incorrectly handled certain bad signatures if multiple trust anchors existed for a single zone. A remote attacker could use this flaw to cause Bind to stop responding, resulting in a denial of service. This issue only affected Ubuntu 8.04 LTS and 10.04 LTS. (CVE-2010-3762)

Frank Kloeker and Michael Sinatra discovered that Bind incorrectly handled certain very large RRSIG RRsets included in negative responses. A remote attacker could use this flaw to cause Bind to stop responding, resulting in a denial of service. (CVE-2011-1910).

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 packages.

See Also

https://usn.ubuntu.com/1139-1/

Plugin Details

Severity: Medium

ID: 55101

File Name: ubuntu_USN-1139-1.nasl

Version: 1.10

Type: local

Agent: unix

Published: 6/13/2011

Updated: 9/19/2019

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libdns36, p-cpe:/a:canonical:ubuntu_linux:libdns64, p-cpe:/a:canonical:ubuntu_linux:libdns66, p-cpe:/a:canonical:ubuntu_linux:libdns69, cpe:/o:canonical:ubuntu_linux:10.04:-:lts, cpe:/o:canonical:ubuntu_linux:10.10, cpe:/o:canonical:ubuntu_linux:11.04, cpe:/o:canonical:ubuntu_linux:8.04:-:lts

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

Exploit Ease: No known exploits are available

Patch Publication Date: 5/30/2011

Vulnerability Publication Date: 10/5/2010

Reference Information

CVE: CVE-2010-3762, CVE-2011-1910

BID: 45385, 48007

USN: 1139-1