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CVE-2011-4112

MEDIUM
5.5
CVSS Score
Published: May 17, 2012 at 10:00 AM UTC
Updated: June 16, 2026 at 11:34 PM UTC
13 products affected across 2 vendorsLinux Kernel9621G Firmware9641G Firmware

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.5%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

9608 Firmware· Avaya
95%
6.0 ≤ v ≤ 6.6.0
avaya-9608 (same device)
9608G Firmware· Avaya
95%
6.0 ≤ v ≤ 6.6.0
avaya-9608g (same device)
9611G Firmware· Avaya
95%
6.0 ≤ v ≤ 6.6.0
avaya-9611g (same device)
9621G Firmware· Avaya
95%
6.0 ≤ v ≤ 6.6.0
avaya-9621g (same device)
9641G Firmware· Avaya
95%
6.0 ≤ v ≤ 6.6.0
avaya-9641g (same device)
9641GS Firmware· Avaya
95%
6.0 ≤ v ≤ 6.6.0
avaya-9641gs (same device)
Linux Kernel· Linux
95%
v < 3.1
Affected range stops below 3.1, so it looks safe — our inference, not a vendor statement
9608· Avayadevice
80%
All versions
9608G· Avayadevice
80%
All versions
9611G· Avayadevice
80%
All versions

References (6)

x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
http://downloads.avaya.com/css/P8/documents/100156038
x_refsource_CONFIRM
Source: [email protected]
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=550fd08c2cebad61c548def135f67aba284c6162
x_refsource_CONFIRMMailing ListPatchVendor Advisory
Source: [email protected]
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1
Mailing Listx_refsource_MLISTPatchThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2011/11/21/4
x_refsource_CONFIRMExploitIssue TrackingPatchThird Party Advisory
Source: [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=751006
x_refsource_CONFIRMPatchThird Party Advisory
Source: [email protected]
https://github.com/torvalds/linux/commit/550fd08c2cebad61c548def135f67aba284c6162

CVSS

5.5MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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