CVE-2011-4112
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,…
Does this matter?
Lower severity and a low EPSS score (0.47%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.47% probability · 39th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel · avaya/9608 firmware · avaya/9608g firmware · avaya/9611g firmware · avaya/9621g firmware · avaya/9641g firmware · avaya/9641gs firmware
- Source
- secalert@redhat.com
References
- http://downloads.avaya.com/css/P8/documents/100156038Third Party Advisory
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=550fd08c2cebad61c548def135f67aba284c6162
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1Mailing List, Patch, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2011/11/21/4Mailing List, Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=751006Exploit, Issue Tracking, Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/550fd08c2cebad61c548def135f67aba284c6162Patch, Third Party Advisory
- http://downloads.avaya.com/css/P8/documents/100156038Third Party Advisory
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=550fd08c2cebad61c548def135f67aba284c6162
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1Mailing List, Patch, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2011/11/21/4Mailing List, Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=751006Exploit, Issue Tracking, Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/550fd08c2cebad61c548def135f67aba284c6162Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.