Headline
Red Hat Security Advisory 2022-4745-01
Red Hat Security Advisory 2022-4745-01 - Varnish Cache is a high-performance HTTP accelerator. It stores web pages in memory so web servers don’t have to create the same web page over and over again, giving the website a significant speed up.
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Red Hat Security Advisory
Synopsis: Important: rh-varnish6-varnish security update
Advisory ID: RHSA-2022:4745-01
Product: Red Hat Software Collections
Advisory URL: https://access.redhat.com/errata/RHSA-2022:4745
Issue date: 2022-05-25
CVE Names: CVE-2022-23959
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- Summary:
An update for rh-varnish6-varnish is now available for Red Hat Software
Collections.
Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.
- Relevant releases/architectures:
Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) - ppc64le, s390x, x86_64
Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) - x86_64
- Description:
Varnish Cache is a high-performance HTTP accelerator. It stores web pages
in memory so web servers don’t have to create the same web page over and
over again, giving the website a significant speed up.
Security Fix(es):
- varnish: HTTP/1 request smuggling vulnerability (CVE-2022-23959)
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.
- 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
- Bugs fixed (https://bugzilla.redhat.com/):
2045031 - CVE-2022-23959 varnish: HTTP/1 request smuggling vulnerability
- Package List:
Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7):
Source:
rh-varnish6-varnish-6.0.8-2.el7.1.src.rpm
ppc64le:
rh-varnish6-varnish-6.0.8-2.el7.1.ppc64le.rpm
rh-varnish6-varnish-devel-6.0.8-2.el7.1.ppc64le.rpm
rh-varnish6-varnish-docs-6.0.8-2.el7.1.ppc64le.rpm
rh-varnish6-varnish-libs-6.0.8-2.el7.1.ppc64le.rpm
s390x:
rh-varnish6-varnish-6.0.8-2.el7.1.s390x.rpm
rh-varnish6-varnish-devel-6.0.8-2.el7.1.s390x.rpm
rh-varnish6-varnish-docs-6.0.8-2.el7.1.s390x.rpm
rh-varnish6-varnish-libs-6.0.8-2.el7.1.s390x.rpm
x86_64:
rh-varnish6-varnish-6.0.8-2.el7.1.x86_64.rpm
rh-varnish6-varnish-devel-6.0.8-2.el7.1.x86_64.rpm
rh-varnish6-varnish-docs-6.0.8-2.el7.1.x86_64.rpm
rh-varnish6-varnish-libs-6.0.8-2.el7.1.x86_64.rpm
Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7):
Source:
rh-varnish6-varnish-6.0.8-2.el7.1.src.rpm
x86_64:
rh-varnish6-varnish-6.0.8-2.el7.1.x86_64.rpm
rh-varnish6-varnish-devel-6.0.8-2.el7.1.x86_64.rpm
rh-varnish6-varnish-docs-6.0.8-2.el7.1.x86_64.rpm
rh-varnish6-varnish-libs-6.0.8-2.el7.1.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/
- References:
https://access.redhat.com/security/cve/CVE-2022-23959
https://access.redhat.com/security/updates/classification/#important
- Contact:
The Red Hat security contact is [email protected]. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2022 Red Hat, Inc.
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Threat actors can abuse weaknesses in HTTP request handling to launch damaging browser-based attacks on website users, researcher says.
Ubuntu Security Notice 5474-1 - It was dicovered that Varnish Cache did not clear a pointer between the handling of one client request and the next request within the same connection. A remote attacker could possibly use this issue to obtain sensitive information. It was discovered that Varnish Cache could have an assertion failure when a TLS termination proxy uses PROXY version 2. A remote attacker could possibly use this issue to restart the daemon and cause a performance loss.
An update for rh-varnish6-varnish is now available for Red Hat Software Collections. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-23959: varnish: HTTP/1 request smuggling vulnerability
In Varnish Cache before 6.6.2 and 7.x before 7.0.2, Varnish Cache 6.0 LTS before 6.0.10, and and Varnish Enterprise (Cache Plus) 4.1.x before 4.1.11r6 and 6.0.x before 6.0.9r4, request smuggling can occur for HTTP/1 connections.