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Kernel: filter: prevent nla extensions to peek beyond the end of the message

🗓️ 24 Jun 2014 15:58:31Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 1 Views

Kernel filter extensions nla can underflow when parsing NLATTRs, causing denial of service.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux7ppc64kernel0:3.10.0-123.4.2.el7kernel-0:3.10.0-123.4.2.el7.ppc64.rpm
Red Hat Enterprise Linux7s390xkernel0:3.10.0-123.4.2.el7kernel-0:3.10.0-123.4.2.el7.s390x.rpm
Red Hat Enterprise Linux7x86_64kernel0:3.10.0-123.4.2.el7kernel-0:3.10.0-123.4.2.el7.x86_64.rpm
Red Hat Enterprise Linux7anykernel-abi-whitelists0:3.10.0-123.4.2.el7kernel-abi-whitelists-0:3.10.0-123.4.2.el7.noarch.rpm
Red Hat Enterprise Linux7ppc64kernel-bootwrapper0:3.10.0-123.4.2.el7kernel-bootwrapper-0:3.10.0-123.4.2.el7.ppc64.rpm
Red Hat Enterprise Linux7ppc64kernel-debug0:3.10.0-123.4.2.el7kernel-debug-0:3.10.0-123.4.2.el7.ppc64.rpm
Red Hat Enterprise Linux7s390xkernel-debug0:3.10.0-123.4.2.el7kernel-debug-0:3.10.0-123.4.2.el7.s390x.rpm
Red Hat Enterprise Linux7x86_64kernel-debug0:3.10.0-123.4.2.el7kernel-debug-0:3.10.0-123.4.2.el7.x86_64.rpm
Red Hat Enterprise Linux7ppc64kernel-debug-debuginfo0:3.10.0-123.4.2.el7kernel-debug-debuginfo-0:3.10.0-123.4.2.el7.ppc64.rpm
Red Hat Enterprise Linux7s390xkernel-debug-debuginfo0:3.10.0-123.4.2.el7kernel-debug-debuginfo-0:3.10.0-123.4.2.el7.s390x.rpm
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CVSS 24.9
EPSS0.00602
kernelfilternetlink attributeinteger underflowdenial of service
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