CVE-2009-4272: Input Validation
First published: Tue Dec 08 2009(Updated: )
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.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | =2.6.18 | |
| Redhat Enterprise Linux | =5 | |
| All of | ||
| Linux Linux kernel | =2.6.18 | |
| Redhat Enterprise Linux | =5.0 | |
| Redhat Virtualization | =5.0 | |
| Redhat Enterprise Linux Desktop | =5.0 | |
| Redhat Enterprise Linux Eus | =5.4 | |
| Redhat Enterprise Linux Server | =5.0 | |
| Redhat Enterprise Linux Workstation | =5.0 |
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Reference Links
- http://www.openwall.com/lists/oss-security/2010/01/20/1
- https://bugzilla.redhat.com/show_bug.cgi?id=545411
- https://rhn.redhat.com/errata/RHSA-2010-0046.html
- http://www.openwall.com/lists/oss-security/2010/01/20/6
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.31
- https://rhn.redhat.com/errata/RHSA-2010-0095.html
- http://support.avaya.com/css/P8/documents/100073666
- https://exchange.xforce.ibmcloud.com/vulnerabilities/55808
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7026
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11167
- 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
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=377148&action=diff
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=377148&action=edit
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=378505&action=diff
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=378505&action=edit
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