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CVE-2009-4027

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Date: December 2, 2009

Race condition in the mac80211 subsystem in the Linux kernel before 2.6.32-rc8-next-20091201 allows remote attackers to cause a denial of service (system crash) via a Delete Block ACK (aka DELBA) packet that triggers a certain state change in the absence of an aggregation session.

Language: C

Severity Score

Related Resources (15)

http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.html
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11583
http://www.securityfocus.com/bid/37170
https://bugzilla.redhat.com/show_bug.cgi?id=541149
https://nvd.nist.gov/vuln/detail/CVE-2009-4027
http://secunia.com/advisories/38017
https://people.canonical.com/~ubuntu-security/cve/CVE-2009-4027
http://secunia.com/advisories/38492
http://www.ubuntu.com/usn/usn-864-1
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=827d42c9ac91ddd728e4f4a31fefb906ef2ceff7
http://www.redhat.com/support/errata/RHSA-2010-0380.html
http://www.kernel.org/pub/linux/kernel/v2.6/next/patch-v2.6.32-rc8-next-20091201.gz
http://www.debian.org/security/2010/dsa-1996
https://access.redhat.com/security/cve/CVE-2009-4027
https://www.mend.io/vulnerability-database/CVE-2009-4027

Severity Score

Weakness Type (CWE)

Race Conditions

CWE-362

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): COMPLETE
Additional information:

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