GLSA-200609-11 : BIND: Denial of Service

medium Nessus Plugin ID 22356

Synopsis

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

Description

The remote host is affected by the vulnerability described in GLSA-200609-11 (BIND: Denial of Service)

Queries for SIG records will cause an assertion error if more than one SIG RRset is returned. Additionally, an INSIST failure can be triggered by sending multiple recursive queries if the response to the query arrives after all the clients looking for the response have left the recursion queue.
Impact :

An attacker having access to a recursive server can crash the server by querying the SIG records where there are multiple SIG RRsets, or by sending many recursive queries in a short time. The exposure can be lowered by restricting the clients that can ask for recursion. An attacker can also crash an authoritative server serving a DNSSEC zone in which there are multiple SIG RRsets.
Workaround :

There are no known workarounds at this time.

Solution

All BIND 9.3 users should update to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=net-dns/bind-9.3.2-r4' All BIND 9.2 users should update to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=net-dns/bind-9.2.6-r4'

See Also

https://security.gentoo.org/glsa/200609-11

Plugin Details

Severity: Medium

ID: 22356

File Name: gentoo_GLSA-200609-11.nasl

Version: 1.15

Type: local

Published: 9/15/2006

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:bind, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Exploit Ease: No known exploits are available

Patch Publication Date: 9/15/2006

Vulnerability Publication Date: 9/6/2006

Reference Information

CVE: CVE-2006-4095, CVE-2006-4096

GLSA: 200609-11