CVE-2011-4112

MEDIUM

Linux kernel <3.1 - DoS

Title source: llm

Description

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.

References (6)

[Patch] http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=550fd08c2cebad61c548def135f67aba284c6162

[Third Party Advisory] http://downloads.avaya.com/css/P8/documents/100156038

[Mailing List, Patch, Vendor Advisory] http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1

[Mailing List, Patch, Third Party Advisory] http://www.openwall.com/lists/oss-security/2011/11/21/4

[Exploit, Issue Tracking, Patch, Third Party Advisory] https://bugzilla.redhat.com/show_bug.cgi?id=751006

[Patch, Third Party Advisory] https://github.com/torvalds/linux/commit/550fd08c2cebad61c548def135f67aba284c6162

Scores

CVSS v3 5.5

EPSS 0.0006

EPSS Percentile 19.2%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Classification

Status draft

Affected Products (7)

linux/linux_kernel < 3.1

avaya/9608_firmware < 6.6.0

avaya/9608g_firmware < 6.6.0

avaya/9611g_firmware < 6.6.0

avaya/9621g_firmware < 6.6.0

avaya/9641g_firmware < 6.6.0

avaya/9641gs_firmware < 6.6.0

Timeline

Published May 17, 2012

Tracked Since Feb 18, 2026