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Red Hat 8: RHSA-2022-1935-01 Moderate: php Local Escalation and SSRF

red hat
Calendar Grey May 10, 2022
Dist Redhat Esm H88
Minor enhancement for php:7.4 on Red Hat Enterprise Linux 8 targeting local privilege escalation and SSRF vulnerabilities.
An update for the php:7.4 module is now available for Red Hat Enterprise Linux 8

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

After installing the updated packages, the httpd daemon must be restarted for the update to take effect.

Summary

PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Server.
Security Fix(es):
* php: Local privilege escalation via PHP-FPM (CVE-2021-21703)
* php: SSRF bypass in FILTER_VALIDATE_URL (CVE-2021-21705)
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 8.6 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory moderate local privilege escalation Red Hat Enterprise Linux security impact php module SSRF

References

https://access.redhat.com/security/cve/CVE-2021-21703 https://access.redhat.com/security/cve/CVE-2021-21705 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.6_release_notes/

Package List

Red Hat Enterprise Linux AppStream (v. 8):
Source: libzip-1.6.1-1.module+el8.3.0+6678+b09f589e.src.rpm php-7.4.19-2.module+el8.6.0+13953+0a59ce9f.src.rpm php-pear-1.10.12-1.module+el8.3.0+6678+b09f589e.src.rpm php-pecl-apcu-5.1.18-1.module+el8.3.0+6678+b09f589e.src.rpm php-pecl-rrd-2.0.1-1.module+el8.3.0+6678+b09f589e.src.rpm php-pecl-xdebug-2.9.5-1.module+el8.3.0+6678+b09f589e.src.rpm php-pecl-zip-1.18.2-1.module+el8.3.0+6678+b09f589e.src.rpm
aarch64: libzip-1.6.1-1.module+el8.3.0+6678+b09f589e.aarch64.rpm libzip-debuginfo-1.6.1-1.module+el8.3.0+6678+b09f589e.aarch64.rpm libzip-debugsource-1.6.1-1.module+el8.3.0+6678+b09f589e.aarch64.rpm libzip-devel-1.6.1-1.module+el8.3.0+6678+b09f589e.aarch64.rpm libzip-tools-1.6.1-1.module+el8.3.0+6678+b09f589e.aarch64.rpm libzip-tools-debuginfo-1.6.1-1.module+el8.3.0+6678+b09f589e.aarch64.rpm php-7.4.19-2.module+el8.6.0+13953+0a59ce9f.aarch64.rpm php-bcmath-7.4.19-2.module+el8.6.0+13953+0a59ce9f.aarch64.rpm php-bcmath-debuginfo-7.4.19-2.module+el8.6.0+13953+0a59ce9f.aarch64.rpm php-cli-7.4.19-2.module+el8.6.0+13953+0a59ce9f.aarch64.rpm php-cli-debuginfo-7.4.19-2.module+el8.6.0+13953+0a59ce9f.aarch64.rpm php-common-7.4.19-2.module+el8.6.0+13953+0a59ce9f.aarch64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2022:1935-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:1935
Issue date: 2022-05-10

Topic

An update for the php:7.4 module is now available for Red Hat EnterpriseLinux 8.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory moderate local privilege escalation Red Hat Enterprise Linux security impact php module SSRF

Relevant Releases Architectures

Red Hat Enterprise Linux AppStream (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64

Bugs Fixed

1978755 - CVE-2021-21705 php: SSRF bypass in FILTER_VALIDATE_URL

2016535 - CVE-2021-21703 php: Local privilege escalation via PHP-FPM

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