SUSE SLED15 / SLES15 Security Update : bind (SUSE-SU-2021:3773-1)

medium Nessus Plugin ID 155702

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New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote SUSE host is missing a security update.

Description

The remote SUSE Linux SLED15 / SLES15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2021:3773-1 advisory.

- In BIND 9.3.0 -> 9.11.35, 9.12.0 -> 9.16.21, and versions 9.9.3-S1 -> 9.11.35-S1 and 9.16.8-S1 -> 9.16.21-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.18 of the BIND 9.17 development branch, exploitation of broken authoritative servers using a flaw in response processing can cause degradation in BIND resolver performance. The way the lame cache is currently designed makes it possible for its internal data structures to grow almost infinitely, which may cause significant delays in client query processing. (CVE-2021-25219)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://bugzilla.suse.com/1192146

http://www.nessus.org/u?28883250

https://www.suse.com/security/cve/CVE-2021-25219

Plugin Details

Severity: Medium

ID: 155702

File Name: suse_SU-2021-3773-1.nasl

Version: 1.2

Type: local

Agent: unix

Published: 11/24/2021

Updated: 11/24/2021

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2021-25219

VPR

Risk Factor: Low

Score: 2.2

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

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

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

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:bind, p-cpe:/a:novell:suse_linux:bind-chrootenv, p-cpe:/a:novell:suse_linux:bind-devel, p-cpe:/a:novell:suse_linux:bind-doc, p-cpe:/a:novell:suse_linux:bind-utils, p-cpe:/a:novell:suse_linux:libbind9-1600, p-cpe:/a:novell:suse_linux:libdns1605, p-cpe:/a:novell:suse_linux:libirs-devel, p-cpe:/a:novell:suse_linux:libirs1601, p-cpe:/a:novell:suse_linux:libisc1606, p-cpe:/a:novell:suse_linux:libisccc1600, p-cpe:/a:novell:suse_linux:libisccfg1600, p-cpe:/a:novell:suse_linux:libns1604, p-cpe:/a:novell:suse_linux:python3-bind, cpe:/o:novell:suse_linux:15

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 11/23/2021

Vulnerability Publication Date: 10/27/2021

Reference Information

CVE: CVE-2021-25219

SuSE: SUSE-SU-2021:3773-1

IAVA: 2021-A-0525