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chrony: authentication doesn't protect symmetric associations against DoS attacks

🗓️ 19 Nov 2015 03:59:36Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 2 Views

Chrony authentication fails to shield symmetric peer associations from denial of service, causing cascading outages.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux7aarch64chrony2.1.1-1.el7chrony-2.1.1-1.el7.aarch64.rpm
Red Hat Enterprise Linux7ppc64chrony2.1.1-1.el7chrony-2.1.1-1.el7.ppc64.rpm
Red Hat Enterprise Linux7ppc64lechrony2.1.1-1.el7chrony-2.1.1-1.el7.ppc64le.rpm
Red Hat Enterprise Linux7s390xchrony2.1.1-1.el7chrony-2.1.1-1.el7.s390x.rpm
Red Hat Enterprise Linux7x86_64chrony2.1.1-1.el7chrony-2.1.1-1.el7.x86_64.rpm
Red Hat Enterprise Linux7aarch64chrony-debuginfo2.1.1-1.el7chrony-debuginfo-2.1.1-1.el7.aarch64.rpm
Red Hat Enterprise Linux7ppc64chrony-debuginfo2.1.1-1.el7chrony-debuginfo-2.1.1-1.el7.ppc64.rpm
Red Hat Enterprise Linux7ppc64lechrony-debuginfo2.1.1-1.el7chrony-debuginfo-2.1.1-1.el7.ppc64le.rpm
Red Hat Enterprise Linux7s390xchrony-debuginfo2.1.1-1.el7chrony-debuginfo-2.1.1-1.el7.s390x.rpm
Red Hat Enterprise Linux7x86_64chrony-debuginfo2.1.1-1.el7chrony-debuginfo-2.1.1-1.el7.x86_64.rpm
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27 Jun 2026 09:25Current
7.2High risk
Vulners AI Score7.2
CVSS 24
CVSS 3.16.5
EPSS0.01696
2