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Red Hat Enterprise Linux 9 RHSA-2022-5527-01 Important Squid DoS Advisory

red hat
Calendar Grey July 27, 2022
Dist Redhat Esm H88
Address critical vulnerabilities in Squid for RHEL 9. Follow the update procedure to secure your system against unauthorized access and data breaches
An update for squid is now available for Red Hat Enterprise Linux 9

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 this update, the squid service will be restarted automatically.

Summary

Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects.
Security Fix(es):
* squid: DoS when processing gopher server responses (CVE-2021-46784)
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.

Topics%20covered

Topics Covered

security advisory security update DoS Red Hat Enterprise Linux important squid security impact

References

https://access.redhat.com/security/cve/CVE-2021-46784 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux AppStream (v. 9):
Source: squid-5.2-1.el9_0.1.src.rpm
aarch64: squid-5.2-1.el9_0.1.aarch64.rpm squid-debuginfo-5.2-1.el9_0.1.aarch64.rpm squid-debugsource-5.2-1.el9_0.1.aarch64.rpm
ppc64le: squid-5.2-1.el9_0.1.ppc64le.rpm squid-debuginfo-5.2-1.el9_0.1.ppc64le.rpm squid-debugsource-5.2-1.el9_0.1.ppc64le.rpm
s390x: squid-5.2-1.el9_0.1.s390x.rpm squid-debuginfo-5.2-1.el9_0.1.s390x.rpm squid-debugsource-5.2-1.el9_0.1.s390x.rpm
x86_64: squid-5.2-1.el9_0.1.x86_64.rpm squid-debuginfo-5.2-1.el9_0.1.x86_64.rpm squid-debugsource-5.2-1.el9_0.1.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2022:5527-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:5527
Issue date: 2022-07-07

Topic

An update for squid is now available for Red Hat Enterprise Linux 9.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory security update DoS Red Hat Enterprise Linux important squid security impact

Relevant Releases Architectures

Red Hat Enterprise Linux AppStream (v. 9) - aarch64, ppc64le, s390x, x86_64

Bugs Fixed

2100721 - CVE-2021-46784 squid: DoS when processing gopher server responses

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