Fedora 37: varnish-modules 2022-0d5dcc031e | LinuxSecurity.com
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Fedora Update Notification
FEDORA-2022-0d5dcc031e
2022-11-23 01:15:30.165665
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Name        : varnish-modules
Product     : Fedora 37
Version     : 0.20.0
Release     : 4.fc37
URL         : https://github.com/varnish/varnish-modules
Summary     : A collection of modules ("vmods") extending Varnish VCL
Description :
This is a collection of modules ("vmods") extending Varnish VCL used
for describing HTTP request/response policies with additional
capabilities. This collection contains the following vmods:
bodyaccess, header, saintmode, tcp, var, vsthrottle, xkey

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Update Information:

New upstream release: A security release. This release includes fix for
CVE-2022-45059 (VSV00011)  and CVE-2022-45060 (VSV00010). From the upstream
release notes:  VSV00010 Varnish Request Smuggling Vulnerability  Date:
2022-11-08  A request smuggling attack can be performed on Varnish Cache servers
by requesting that certain headers are made hop-by-hop, preventing the Varnish
Cache servers from forwarding critical headers to the backend. Among the headers
that can be filtered this way are both Content-Length and Host, making it
possible for an attacker to both break the HTTP/1 protocol framing, and bypass
request to host routing in VCL.  VSV00011 Varnish HTTP/2 Request Forgery
Vulnerability  Date: 2022-11-08  A request forgery attack can be performed on
Varnish Cache servers that have the HTTP/2 protocol turned on. An attacker may
introduce characters through the HTTP/2 pseudo-headers that are invalid in the
context of an HTTP/1 request line, causing the Varnish server to produce invalid
HTTP/1 requests to the backend. This may in turn be used to successfully exploit
vulnerabilities in a server behind the Varnish server.
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ChangeLog:

* Mon Nov 14 2022 Ingvar Hagelund  - 0.20.0-4
- Built for varnish-7.1.2
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References:

  [ 1 ] Bug #2141842 - CVE-2022-45059 varnish: Request Smuggling Vulnerability [fedora-all]
        https://bugzilla.redhat.com/show_bug.cgi?id=2141842
  [ 2 ] Bug #2141847 - CVE-2022-45060 varnish: Request Forgery Vulnerability [fedora-all]
        https://bugzilla.redhat.com/show_bug.cgi?id=2141847
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2022-0d5dcc031e' at the command
line. For more information, refer to the dnf documentation available at
https://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
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Fedora 37: varnish-modules 2022-0d5dcc031e

November 22, 2022
New upstream release: A security release

Summary

This is a collection of modules ("vmods") extending Varnish VCL used

for describing HTTP request/response policies with additional

capabilities. This collection contains the following vmods:

bodyaccess, header, saintmode, tcp, var, vsthrottle, xkey

Update Information:

New upstream release: A security release. This release includes fix for CVE-2022-45059 (VSV00011) and CVE-2022-45060 (VSV00010). From the upstream release notes: VSV00010 Varnish Request Smuggling Vulnerability Date: 2022-11-08 A request smuggling attack can be performed on Varnish Cache servers by requesting that certain headers are made hop-by-hop, preventing the Varnish Cache servers from forwarding critical headers to the backend. Among the headers that can be filtered this way are both Content-Length and Host, making it possible for an attacker to both break the HTTP/1 protocol framing, and bypass request to host routing in VCL. VSV00011 Varnish HTTP/2 Request Forgery Vulnerability Date: 2022-11-08 A request forgery attack can be performed on Varnish Cache servers that have the HTTP/2 protocol turned on. An attacker may introduce characters through the HTTP/2 pseudo-headers that are invalid in the context of an HTTP/1 request line, causing the Varnish server to produce invalid HTTP/1 requests to the backend. This may in turn be used to successfully exploit vulnerabilities in a server behind the Varnish server.

Change Log

* Mon Nov 14 2022 Ingvar Hagelund - 0.20.0-4 - Built for varnish-7.1.2

References

[ 1 ] Bug #2141842 - CVE-2022-45059 varnish: Request Smuggling Vulnerability [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2141842 [ 2 ] Bug #2141847 - CVE-2022-45060 varnish: Request Forgery Vulnerability [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2141847

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2022-0d5dcc031e' at the command line. For more information, refer to the dnf documentation available at https://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

Severity
Name : varnish-modules
Product : Fedora 37
Version : 0.20.0
Release : 4.fc37
URL : https://github.com/varnish/varnish-modules
Summary : A collection of modules ("vmods") extending Varnish VCL

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