SUSE SLED15 / SLES15 Security Update : apache2 (SUSE-SU-2021:3522-1)

critical Nessus Plugin ID 154632

Synopsis

The remote SUSE host is missing one or more security updates.

Description

The remote SUSE Linux SLED15 / SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:3522-1 advisory.

- Malformed requests may cause the server to dereference a NULL pointer. This issue affects Apache HTTP Server 2.4.48 and earlier. (CVE-2021-34798)

- A carefully crafted request uri-path can cause mod_proxy_uwsgi to read above the allocated memory and crash (DoS). This issue affects Apache HTTP Server versions 2.4.30 to 2.4.48 (inclusive). (CVE-2021-36160)

- ap_escape_quotes() may write beyond the end of a buffer when given malicious input. No included modules pass untrusted data to these functions, but third-party / external modules may. This issue affects Apache HTTP Server 2.4.48 and earlier. (CVE-2021-39275)

- A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the remote user. This issue affects Apache HTTP Server 2.4.48 and earlier. (CVE-2021-40438)

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/1190666

https://bugzilla.suse.com/1190669

https://bugzilla.suse.com/1190702

https://bugzilla.suse.com/1190703

http://www.nessus.org/u?2143d0d0

https://www.suse.com/security/cve/CVE-2021-34798

https://www.suse.com/security/cve/CVE-2021-36160

https://www.suse.com/security/cve/CVE-2021-39275

https://www.suse.com/security/cve/CVE-2021-40438

Plugin Details

Severity: Critical

ID: 154632

File Name: suse_SU-2021-3522-1.nasl

Version: 1.6

Type: local

Agent: unix

Published: 10/28/2021

Updated: 1/26/2022

Supported Sensors: Nessus Agent

Risk Information

CVSS Score Source: CVE-2021-39275

VPR

Risk Factor: Critical

Score: 10

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.4

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

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

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:apache2, p-cpe:/a:novell:suse_linux:apache2-devel, p-cpe:/a:novell:suse_linux:apache2-doc, p-cpe:/a:novell:suse_linux:apache2-event, 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:15

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/26/2021

Vulnerability Publication Date: 9/16/2021

CISA Known Exploited Dates: 12/15/2021

Reference Information

CVE: CVE-2021-34798, CVE-2021-36160, CVE-2021-39275, CVE-2021-40438

SuSE: SUSE-SU-2021:3522-1

IAVA: 2021-A-0440-S