CVE-2009-4272

Advisory lineage Upstream: 0 Downstream: 2
Modified
Published: 27 Jan 2010, 17:00
Last modified:07 Aug 2024, 06:54

Vulnerability Summary

Overall Risk (default)
medium
42/100
CVSS Score
7.8 HIGH
v2.0 (nvd)
EPSS Score
1.81% LOW
2% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

27 Jan 2010, 17:00
Published
Vulnerability first disclosed
07 Aug 2024, 06:54
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • v2.0•HIGH•Score: 7.8AV:N/AC:L/Au:N/C:N/I:N/A:C

EPSS Trends

Current EPSS score: 1.81%• Percentile: 83%

Techniques & Countermeasures

  • CWE-667•Improper Locking

    The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.

Affected Systems

  • linux•linux_kernel

    2.6.18

  • redhat•enterprise_linux_desktop

    5.0

  • redhat•enterprise_linux_eus

    5.4

  • redhat•enterprise_linux_server

    5.0

  • redhat•enterprise_linux_workstation

    5.0

  • redhat•virtualization

    5.0

References (12)