Vulnerability Details CVE-2009-4272
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.018
EPSS Ranking 82.0%
CVSS Severity
CVSS v3 Score 7.5
CVSS v2 Score 7.8
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=73e42897e8e5619eacb787d2ce69be12f47cfc21
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=b6280b47a7a42970d098a3059f4ebe7e55e90d8d
- http://support.avaya.com/css/P8/documents/100073666
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.31
- http://www.openwall.com/lists/oss-security/2010/01/20/1
- http://www.openwall.com/lists/oss-security/2010/01/20/6
- https://bugzilla.redhat.com/show_bug.cgi?id=545411
- https://exchange.xforce.ibmcloud.com/vulnerabilities/55808
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11167
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7026
- https://rhn.redhat.com/errata/RHSA-2010-0046.html
- https://rhn.redhat.com/errata/RHSA-2010-0095.html
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=73e42897e8e5619eacb787d2ce69be12f47cfc21
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=b6280b47a7a42970d098a3059f4ebe7e55e90d8d
- http://support.avaya.com/css/P8/documents/100073666
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.31
- http://www.openwall.com/lists/oss-security/2010/01/20/1
- http://www.openwall.com/lists/oss-security/2010/01/20/6
- https://bugzilla.redhat.com/show_bug.cgi?id=545411
- https://exchange.xforce.ibmcloud.com/vulnerabilities/55808
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11167
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7026
- https://rhn.redhat.com/errata/RHSA-2010-0046.html
- https://rhn.redhat.com/errata/RHSA-2010-0095.html
Products affected by CVE-2009-4272
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cpe:2.3:a:redhat:virtualization:5.0
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cpe:2.3:o:linux:linux_kernel:2.6.18
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cpe:2.3:o:redhat:enterprise_linux:5.0
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cpe:2.3:o:redhat:enterprise_linux_desktop:5.0
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cpe:2.3:o:redhat:enterprise_linux_eus:5.4
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cpe:2.3:o:redhat:enterprise_linux_server:5.0
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cpe:2.3:o:redhat:enterprise_linux_workstation:5.0