Linux kernel versions prior to 4.14.8 utilize the Berkeley Packet Filter (BPF) which contains a vulnerability where it may improperly perform signing for an extension. This can be utilized to escalate privileges. The target system must be compiled with BPF support and must not have kernel.unprivileged_bpf_disabled set to 1. This Metasploit module has been tested successfully on many different kernels.
3a7fa7070c41ddc4726fd312fb66650ad5d4cd33a694060cfd4542206f2d48f1Linux kernels prior to version 4.13.9 (Ubuntu 16.04/Fedora 27) local privilege escalation exploit.
72887b461f9ad6058e73a276ea69a30911f90cd29b4109630d7d6c9e074102b6Jann Horn discovered that the Berkeley Packet Filter (BPF) implementation in the Linux kernel improperly performed sign extension in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. It was discovered that a race condition leading to a use-after-free vulnerability existed in the ALSA PCM subsystem of the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. Various other issues were also addressed.
39ead24f1d46a53a4118ca65333192e8b23de00376f175ad713483a533c61a56Ubuntu Security Notice 3633-1 - Jann Horn discovered that the Berkeley Packet Filter implementation in the Linux kernel improperly performed sign extension in some situations. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.
d3de2ae1cc871a46858dde71234bd3509254083fcd27c016ea8f204362973d8eUbuntu Security Notice 3619-2 - USN-3619-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 LTS. Jann Horn discovered that the Berkeley Packet Filter implementation in the Linux kernel improperly performed sign extension in some situations. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.
38b18f0521488f7e9524a5f8e492f7ad41f5c91d876a8aea56b6215d3c63309bUbuntu Security Notice 3619-1 - Jann Horn discovered that the Berkeley Packet Filter implementation in the Linux kernel improperly performed sign extension in some situations. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that a race condition leading to a use-after-free vulnerability existed in the ALSA PCM subsystem of the Linux kernel. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.
c6a6f41fea45fbea18a8b7d6e773995876e32e44e04595bd392e7b20c000dc48Wi-Fi Protected Access (WPA and WPA2) allows re-installation of the Group Temporal Key (GTK) during the group key handshake, allowing an attacker within radio range to replay frames from access points to clients. Jann Horn discovered that the Berkeley Packet Filter (BPF) implementation in the Linux kernel improperly performed sign extension in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
3fde9377ed3b41ddea90371b60b3d05b2204d2683198fbcab8cd5b1e3776aaa3Linux Kernel versions prior to 4.4.0-116 (Ubuntu 16.04.4) local privilege escalation exploit.
5af548bd5c95eb4d430a9a86b661f4ac21ad75fd0aaeab8a2e462b2a240ce7e0Ubuntu Security Notice 3523-3 - Jann Horn discovered that the Berkeley Packet Filter implementation in the Linux kernel did not properly check the relationship between pointer values and the BPF stack. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Jann Horn discovered that the Berkeley Packet Filter implementation in the Linux kernel improperly performed sign extension in some situations. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.
3207e0826c0c9c18265d9ae379795f91daf1e13e098ed46e3ae67bdc4ad578b0Ubuntu Security Notice 3532-2 - USN-3523-1 fixed vulnerabilities in the Linux kernel for Ubuntu 17.10. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 17.10 for Ubuntu 16.04 LTS. Jann Horn discovered that microprocessors utilizing speculative execution and indirect branch prediction may allow unauthorized memory reads via sidechannel attacks. This flaw is known as Meltdown. A local attacker could use this to expose sensitive information, including kernel memory. Various other issues were also addressed.
77ce5cfd32550cb376de719462442e2dd40492997a26f59310fd9f5cbbfea5e6Ubuntu Security Notice 3523-1 - Jann Horn discovered that microprocessors utilizing speculative execution and indirect branch prediction may allow unauthorized memory reads via sidechannel attacks. This flaw is known as Meltdown. A local attacker could use this to expose sensitive information, including kernel memory. Jann Horn discovered that the Berkeley Packet Filter implementation in the Linux kernel did not properly check the relationship between pointer values and the BPF stack. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.
5e21912d20ede254be2f46410d61a48a034c988bdc1be837146967e4fe2ff191
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