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CVE-2011-4112

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Date: May 17, 2012

The net subsystem in the Linux kernel before 3.1 does not properly restrict use of the IFF_TX_SKB_SHARING flag, which allows local users to cause a denial of service (panic) by leveraging the CAP_NET_ADMIN capability to access /proc/net/pktgen/pgctrl, and then using the pktgen package in conjunction with a bridge device for a VLAN interface.

Language: C

Severity Score

Related Resources (8)

https://github.com/torvalds/linux/commit/550fd08c2cebad61c548def135f67aba284c6162
http://downloads.avaya.com/css/P8/documents/100156038
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1
https://nvd.nist.gov/vuln/detail/CVE-2011-4112
https://bugzilla.redhat.com/show_bug.cgi?id=751006
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=550fd08c2cebad61c548def135f67aba284c6162
http://www.openwall.com/lists/oss-security/2011/11/21/4
https://www.mend.io/vulnerability-database/CVE-2011-4112

Severity Score

Weakness Type (CWE)

Permissions, Privileges, and Access Control

CWE-264

Insufficient Information

NVD-CWE-noinfo

Top Fix

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CVSS v3.1

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

CVSS v2

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

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