{"id":"CVE-2011-4112","aliases":["EUVD-2011-4060","GHSA-xhfj-c879-xq4w"],"status":"published","title":"The net subsystem in the Linux kernel before 3.1 does not properly restrict use of the...","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.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00468,"percentile":0.40804,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2012-05-17T10:00:00Z","modified":"2026-06-16T23:34:26Z","products":[{"vendor":"avaya","product":"9608_firmware"},{"vendor":"avaya","product":"9608g_firmware"},{"vendor":"avaya","product":"9611g_firmware"},{"vendor":"avaya","product":"9621g_firmware"},{"vendor":"avaya","product":"9641g_firmware"},{"vendor":"avaya","product":"9641gs_firmware"},{"vendor":"linux","product":"linux_kernel"}],"references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=751006","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Issue Tracking","Patch","Third Party Advisory"]},{"url":"https://github.com/torvalds/linux/commit/550fd08c2cebad61c548def135f67aba284c6162","tags":["x_refsource_CONFIRM","x_transferred","Patch","Third Party Advisory"]},{"url":"http://downloads.avaya.com/css/P8/documents/100156038","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2011/11/21/4","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Patch","Third Party Advisory"]},{"url":"http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=550fd08c2cebad61c548def135f67aba284c6162","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1","tags":["x_refsource_CONFIRM","x_transferred","Mailing List","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-4112"},{"url":"http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=550fd08c2cebad61c548def135f67aba284c6162"},{"url":"https://github.com/advisories/GHSA-xhfj-c879-xq4w"}],"sources":{"cve":[{"id":"CVE-2011-4112","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.","status":"published","published":"2012-05-17T10:00:00Z","modified":"2024-08-07T00:01:50.51Z","updated_at":"2026-11-02T14:35:37.671707Z"}],"euvd":[{"id":"EUVD-2011-4060","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.","status":"published","published":"2012-05-17T10:00:00Z","modified":"2024-08-07T00:01:50Z","updated_at":"2026-11-03T01:39:49.441333Z"}],"ghsa":[{"id":"GHSA-xhfj-c879-xq4w","title":"The net subsystem in the Linux kernel before 3.1 does not properly restrict use of the...","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.","status":"published","published":"2022-05-13T01:24:58Z","modified":"2023-02-13T03:30:57Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T14:54:05.992759Z"}],"nvd":[{"id":"CVE-2011-4112","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.","status":"published","published":"2012-05-17T11:00:32.757Z","modified":"2026-06-16T23:34:26.93Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.9,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:02:12.272092Z"}]}}