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.
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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-07T06:54:10.370Z

Reserved: 2009-12-10T00:00:00

Link: CVE-2009-4272

cve-icon Vulnrichment

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cve-icon NVD

Status : Deferred

Published: 2010-01-27T17:30:00.603

Modified: 2025-04-11T00:51:21.963

Link: CVE-2009-4272

cve-icon Redhat

Severity : Important

Publid Date: 2010-01-19T00:00:00Z

Links: CVE-2009-4272 - Bugzilla

cve-icon OpenCVE Enrichment

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