RHEL 8 : httpd:2.4 (RHSA-2021:4257)

medium Nessus Plugin ID 155086

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Synopsis

The remote Red Hat host is missing one or more security updates.

Description

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:4257 advisory.

The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server.

Security Fix(es):

* httpd: mod_session: NULL pointer dereference when parsing Cookie header (CVE-2021-26690)

* httpd: Unexpected URL matching with 'MergeSlashes OFF' (CVE-2021-30641)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.5 Release Notes linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

Solution

Update the affected packages.

Plugin Details

Severity: Medium

ID: 155086

File Name: redhat-RHSA-2021-4257.nasl

Version: 1.8

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 11/11/2021

Updated: 11/7/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2021-30641

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:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:httpd-devel, p-cpe:/a:redhat:enterprise_linux:httpd-filesystem, p-cpe:/a:redhat:enterprise_linux:mod_http2, p-cpe:/a:redhat:enterprise_linux:mod_proxy_html, p-cpe:/a:redhat:enterprise_linux:mod_ssl, p-cpe:/a:redhat:enterprise_linux:httpd-tools, p-cpe:/a:redhat:enterprise_linux:httpd-manual, p-cpe:/a:redhat:enterprise_linux:mod_session, p-cpe:/a:redhat:enterprise_linux:mod_md, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:mod_ldap, p-cpe:/a:redhat:enterprise_linux:httpd

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/9/2021

Vulnerability Publication Date: 6/1/2021

Reference Information

CVE: CVE-2021-26690, CVE-2021-30641

CWE: 20, 476

IAVA: 2021-A-0259-S

RHSA: 2021:4257

Detections

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