CVE-2009-4272

7.5HIGH

Key Information:

Vendor
Linux
Status
Linux Kernel
Enterprise Linux
Vendor
CVE Published:
27 January 2010

Summary

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

https://bugzilla.redhat.com/show_bug.cgi?id=545411
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http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.31
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http://support.avaya.com/css/P8/documents/100073666
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EPSS Score

2% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Collectors

NVD DatabaseMitre Database
.