SUSE SLES11 Security Update : apache2 (SUSE-SU-2021:14749-1)

high Nessus Plugin ID 150902
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 one or more security updates.

Description

The remote SUSE Linux SLES11 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:14749-1 advisory.

- Apache HTTP Server versions 2.4.0 to 2.4.46 A specially crafted Digest nonce can cause a stack overflow in mod_auth_digest. There is no report of this overflow being exploitable, nor the Apache HTTP Server team could create one, though some particular compiler and/or compilation option might make it possible, with limited consequences anyway due to the size (a single byte) and the value (zero byte) of the overflow (CVE-2020-35452)

- Apache HTTP Server versions 2.4.39 to 2.4.46 Unexpected matching behavior with 'MergeSlashes OFF' (CVE-2021-30641)

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/1186922

https://bugzilla.suse.com/1187174

http://www.nessus.org/u?7369a01d

https://www.suse.com/security/cve/CVE-2020-35452

https://www.suse.com/security/cve/CVE-2021-30641

Plugin Details

Severity: High

ID: 150902

File Name: suse_SU-2021-14749-1.nasl

Version: 1.4

Type: local

Agent: unix

Published: 6/21/2021

Updated: 9/24/2021

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2020-35452

VPR

Risk Factor: Medium

Score: 4.2

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

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

CVSS v3

Risk Factor: High

Base Score: 7.3

Temporal Score: 6.4

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

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

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:apache2, p-cpe:/a:novell:suse_linux:apache2-doc, p-cpe:/a:novell:suse_linux:apache2-example-pages, p-cpe:/a:novell:suse_linux:apache2-prefork, p-cpe:/a:novell:suse_linux:apache2-utils, p-cpe:/a:novell:suse_linux:apache2-worker, cpe:/o:novell:suse_linux:11

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: 6/17/2021

Vulnerability Publication Date: 6/1/2021

Reference Information

CVE: CVE-2020-35452, CVE-2021-30641

SuSE: SUSE-SU-2021:14749-1

IAVA: 2021-A-0259-S