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Security Mirrored from RHSA-2023:5924
Issued at: 2023-10-24
Updated at: 2023-10-24


Important: varnish security update


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):

* HTTP/2: Multiple HTTP/2 enabled web servers are vulnerable to a DDoS attack (Rapid Reset Attack) (CVE-2023-44487)

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.

Affected products

Rocky Linux 9 ppc64le Rocky Linux 9 s390x Rocky Linux 9 x86_64





Affected packages

Rocky Linux 9 x86_64 - AppStream

varnish-0:6.6.2-3.el9_2.1.i686.rpm varnish-0:6.6.2-3.el9_2.1.src.rpm varnish-0:6.6.2-3.el9_2.1.x86_64.rpm varnish-docs-0:6.6.2-3.el9_2.1.x86_64.rpm

Rocky Linux 9 ppc64le - AppStream

varnish-0:6.6.2-3.el9_2.1.ppc64le.rpm varnish-0:6.6.2-3.el9_2.1.src.rpm varnish-docs-0:6.6.2-3.el9_2.1.ppc64le.rpm

Rocky Linux 9 s390x - AppStream

varnish-0:6.6.2-3.el9_2.1.s390x.rpm varnish-0:6.6.2-3.el9_2.1.src.rpm varnish-docs-0:6.6.2-3.el9_2.1.s390x.rpm

Rocky Linux 9 x86_64 - CRB

varnish-0:6.6.2-3.el9_2.1.src.rpm varnish-devel-0:6.6.2-3.el9_2.1.i686.rpm varnish-devel-0:6.6.2-3.el9_2.1.x86_64.rpm

Rocky Linux 9 s390x - CRB

varnish-0:6.6.2-3.el9_2.1.src.rpm varnish-devel-0:6.6.2-3.el9_2.1.s390x.rpm

Rocky Linux 9 ppc64le - CRB

varnish-0:6.6.2-3.el9_2.1.src.rpm varnish-devel-0:6.6.2-3.el9_2.1.ppc64le.rpm