CVE-2009-4272

HIGH 7.5CVE-2009-4272 · Published 27/01/2010 · updated 16/06/2026

Package	Affected versions	Patched versions
virtualization redhat	`= 5.0`	No fix yet

Description

A certain Red Hat patch for net/ipv4/route.c in the Linux kernel 2.6.18 on Red Hat Enterprise Linux (RHEL) 5 allows remote attackers to cause a denial of service (deadlock) via crafted packets that force collisions in the IPv4 routing hash table, and trigger a routing "emergency" in which a hash chain is too long. NOTE: this is related to an issue in the Linux kernel before 2.6.31, when the kernel routing cache is disabled, involving an uninitialized pointer and a panic.

References

git.kernel.org · Broken Link
git.kernel.org · Broken Link
support.avaya.com/css/P8/documents/100073666 · Third Party Advisory
kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.31 · Broken Link
openwall.com/lists/oss-security/2010/01/20/1 · Mailing List
openwall.com/lists/oss-security/2010/01/20/6 · Mailing List
bugzilla.redhat.com/show_bug.cgi · Exploit
exchange.xforce.ibmcloud.com/vulnerabilities/55808 · Third Party Advisory
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11167 · Broken Link
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7026 · Broken Link
rhn.redhat.com/errata/RHSA-2010-0046.html · Vendor Advisory
rhn.redhat.com/errata/RHSA-2010-0095.html · Vendor Advisory

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