CVE-2009-4272
Last modified
CVE-2009-4272 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 11.05% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | 2.6.18 |
| 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 |
References
- http://support.avaya.com/css/P8/documents/100073666Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=545411Exploit, Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/55808Third Party Advisory, VDB Entry
- https://rhn.redhat.com/errata/RHSA-2010-0046.htmlVendor Advisory
- https://rhn.redhat.com/errata/RHSA-2010-0095.htmlVendor Advisory
- http://support.avaya.com/css/P8/documents/100073666Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=545411Exploit, Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/55808Third Party Advisory, VDB Entry
- https://rhn.redhat.com/errata/RHSA-2010-0046.htmlVendor Advisory
- https://rhn.redhat.com/errata/RHSA-2010-0095.htmlVendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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