CVE-2011-4112 describes a denial-of-service vulnerability in the Linux kernel's net subsystem, affecting versions prior to 3.1, as well as Avaya products utilizing these kernels. An attacker with CAP_NET_ADMIN privileges can trigger a system panic by manipulating the IFF_TX_SKB_SHARING flag via /proc/net/pktgen/pgctrl in conjunction with a bridge device and VLAN interface. Rated Medium (CVSS 5.5), this local vulnerability requires low attack complexity and user privileges, leading to high availability impact. There is no evidence of active exploitation, public exploit code, or significant community discussion, indicating a low current threat level.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 3.1CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 6.0, <= 6.6.0CPE matchmatch criteria | cpe:2.3:o:avaya:9608_firmware:*:*:*:*:*:*:*:* | ||
>= 6.0, <= 6.6.0CPE matchmatch criteria | cpe:2.3:o:avaya:9608g_firmware:*:*:*:*:*:*:*:* | ||
>= 6.0, <= 6.6.0CPE matchmatch criteria | cpe:2.3:o:avaya:9611g_firmware:*:*:*:*:*:*:*:* | ||
>= 6.0, <= 6.6.0CPE matchmatch criteria | cpe:2.3:o:avaya:9621g_firmware:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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