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CVE
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CVE-2009-4272Date: (C)2010-01-27   (M)2018-02-19


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 Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : CVSS Score : 7.8
Exploit Score: Exploit Score: 10.0
Impact Score: Impact Score: 6.9
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: Access Vector: NETWORK
Attack Complexity: Access Complexity: LOW
Privileges Required: Authentication: NONE
User Interaction: Confidentiality: NONE
Scope: Integrity: NONE
Confidentiality: Availability: COMPLETE
Integrity:  
Availability:  
  
Reference:
IAVM:2010-A-0015
RHSA-2010:0046
RHSA-2010:0095
http://www.openwall.com/lists/oss-security/2010/01/20/1
http://www.openwall.com/lists/oss-security/2010/01/20/6
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=73e42897e8e5619eacb787d2ce69be12f47cfc21
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b6280b47a7a42970d098a3059f4ebe7e55e90d8d
http://support.avaya.com/css/P8/documents/100073666
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.31
https://bugzilla.redhat.com/show_bug.cgi?id=545411
linux-kernel-routing-dos(55808)

CPE    2
cpe:/o:linux:linux_kernel:2.6.18
cpe:/o:redhat:enterprise_linux:5
CWE    1
CWE-20
OVAL    3
oval:org.secpod.oval:def:201720
oval:org.secpod.oval:def:201799
oval:org.secpod.oval:def:500393

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