Linux Kernel (Ubuntu 16.04) - Reference Count Overflow Using BPF Maps

Exploit for linux platform in category dos / poc Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=809 Most things in the kernel use 32-bit reference counters, relying on the fact that the memory constraints of real computers make it impossible to create enough references to...

Linux Kernel 4.4.x (Ubuntu 16.04) - 'double-fdput()' in bpf(BPF_PROG_LOAD) Privilege Esc

Exploit for linux platform in category local exploits Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=808 In Linux =4.4, when the CONFIGBPFSYSCALL config option is set and the kernel.unprivilegedbpfdisabled sysctl is not explicitly set to 1 at runtime, unprivileged code can use...

Linux Kernel (Ubuntu 16.04) - Reference Count Overflow Using BPF Maps

Linux Kernel Ubuntu 16.04 - Reference Count Overflow Using BPF Maps Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=809 Most things in the kernel use 32-bit reference counters, relying on the fact that the memory constraints of real computers make it impossible to create enough...

Linux Kernel 4.4.x (Ubuntu 16.04) - double-fdput() bpf(BPF_PROG_LOAD) Privilege Escalation

Linux Kernel 4.4.x Ubuntu 16.04 - double-fdput bpfBPFPROGLOAD Privilege Escalation Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=808 In Linux =4.4, when the CONFIGBPFSYSCALL config option is set and the kernel.unprivilegedbpfdisabled sysctl is not explicitly set to 1 at runtim...

CVE-2016-2383

The adjustbranches function in kernel/bpf/verifier.c in the Linux kernel before 4.5 does not consider the delta in the backward-jump case, which allows local users to obtain sensitive information from kernel memory by creating a packet filter and then loading crafted BPF instructions...

Design/Logic Flaw

The adjustbranches function in kernel/bpf/verifier.c in the Linux kernel before 4.5 does not consider the delta in the backward-jump case, which allows local users to obtain sensitive information from kernel memory by creating a packet filter and then loading crafted BPF instructions...

CVE-2016-2383

The adjustbranches function in kernel/bpf/verifier.c in the Linux kernel before 4.5 does not consider the delta in the backward-jump case, which allows local users to obtain sensitive information from kernel memory by creating a packet filter and then loading crafted BPF instructions...

CVE-2016-2383

The CVE-2016-2383 vulnerability affects the Linux kernel (kernel/bpf/verifier.c) where, in the backward-jump delta handling, local attackers can craft BPF instructions to read kernel memory. It is exploitable by local users via a crafted packet filter. The issue is present in kernel versions befo...

CVE-2016-2383

The adjustbranches function in kernel/bpf/verifier.c in the Linux kernel before 4.5 does not consider the delta in the backward-jump case, which allows local users to obtain sensitive information from kernel memory by creating a packet filter and then loading crafted BPF instructions...

Ubuntu: Security Advisory (USN-2947-3)

The remote host is missing an update for the SPDX-FileCopyrightText: 2016 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Updated kernel-tmb packages provides 4.1 longterm kernel and fixes security issues

This kernel-tmb update provides an upgrade to the upstream 4.1 longterm kernel series, currently based on 4.1.15 and resolves at least the following security issues: It was found that the Linux kernel's keyring implementation would leak memory when adding a key to a keyring via the addkey functio...

SUSE-SU-2015:2167-1 Security update for kernel-source-rt

The SUSE Linux Enterprise 11 SP4 Realtime kernel was updated to version 3.0.101.rt130-45.1 to receive various security and bugfixes. Following security bugs were fixed: CVE-2015-6252: Possible file descriptor leak for each VHOSTSETLOGFDcommand issued, this could eventually wasting available syste...

RHEL 7 : kernel (RHSA-2015:1778)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2015:1778 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. A flaw was found in the kernel's implementation of the...

CVE-2014-2889

Off-by-one error in the bpfjitcompile function in arch/x86/net/bpfjitcomp.c in the Linux kernel before 3.1.8, when BPF JIT is enabled, allows local users to cause a denial of service system crash or possibly gain privileges via a long jump after a conditional jump...

CentOS 7 : kernel (CESA-2015:1778)

Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System CVSS base scores, which give detailed severity...

Updated kernel-linus package provides 4.1 longterm and fixes security issues

This kernel-linus update provides an upgrade to the upstream 4.1 longterm kernel series, currently based on 4.1.8 and resolves at least the following security issues: It was found that the Linux kernel's keyring implementation would leak memory when adding a key to a keyring via the addkey...

Ubuntu: Security Advisory (USN-2684-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2015 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

CentOS Update for kernel CESA-2015:1778 centos7

Check the version of kernel SPDX-FileCopyrightText: 2015 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription scriptoid"1.3.6.1.4.1.25623.1.0.882285";...

kernel, perf, python security update

CentOS Errata and Security Advisory CESA-2015:1778 Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System...

Scientific Linux Security Update : kernel on SL7.x x86_64 (20150915)

A flaw was found in the kernel's implementation of the Berkeley Packet Filter BPF. A local attacker could craft BPF code to crash the system by creating a situation in which the JIT compiler would fail to correctly optimize the JIT image on the last pass. This would lead to the CPU executing...