Important: Red Hat Security Advisory: kernel security update

Updated kernel packages that fix two security issues are now available for Red Hat Enterprise Linux 6.4 Extended Update Support. The Red Hat Security Response Team has rated this update as having Important security impact. Common Vulnerability Scoring System CVSS base scores, which give detailed...

kernel: x86_64: ptrace: sysret to non-canonical address

It was found that the Linux kernel's ptrace subsystem allowed a traced process' instruction pointer to be set to a non-canonical memory address without forcing the non-sysret code path when returning to user space. A local, unprivileged user could use this flaw to crash the system or, potentially...

kernel security update

3.10.0-123.4.4 - Oracle Linux certificates Alexey Petrenko 3.10.0-123.4.4 - net l2tpppp: fail when socket option level is not SOLPPPOL2TP Petr Matousek 1119465 1119466 CVE-2014-4943 3.10.0-123.4.3 - x86 ptrace: force IRET path after a ptracestop Oleg Nesterov 1115934 1115935 CVE-2014-4699...

unbreakable enterprise kernel security update

kernel-uek 3.8.13-35.3.2.el7uek - l2tp: fix an unprivileged user to kernel privilege escalation Sasha Levin Orabug: 19229497 CVE-2014-4943 CVE-2014-4943 - ptrace,x86: force IRET path after a ptracestop Tejun Heo Orabug: 19230689 CVE-2014-4699 - net: flowdissector: fail on evil iph-ihl Jason Wang...

kernel: x86_64: ptrace: sysret to non-canonical address

It was found that the Linux kernel's ptrace subsystem allowed a traced process' instruction pointer to be set to a non-canonical memory address without forcing the non-sysret code path when returning to user space. A local, unprivileged user could use this flaw to crash the system or, potentially...

Linux Kernel ptrace/sysret - Local Privilege Escalation Exploit

The Linux kernel before 3.15.4 on Intel processors does not properly restrict use of a non-canonical value for the saved RIP address in the case of a system call that does not use IRET, which allows local users to leverage a race condition and gain privileges, or cause a denial of service double...

Linux Kernel ptrace/sysret - 本地提权漏洞

No description provided by source. / CVE-2014-4699 ptrace/sysret PoC by Vitaly Nikolenko [email protected] gcc -O2 pocv0.c This code is kernel specific. On Ubuntu 12.04.0 LTS 3.2.0-23-generic, the following will trigger the GP in sysret and overwrite the PF handler so we can land to our NOP sled...

Linux Kernel ptrace/sysret Local Privilege Escalation

/ CVE-2014-4699 ptrace/sysret PoC by Vitaly Nikolenko [email protected] gcc -O2 pocv0.c This code is kernel specific. On Ubuntu 12.04.0 LTS 3.2.0-23-generic, the following will trigger the GP in sysret and overwrite the PF handler so we can land to our NOP sled mapped at 0x80000000. However, onc...

Linux Kernel 3.2.0-23 (Ubuntu 12.04 x64) - ptracesysret Local Privilege Escalation

Linux Kernel 3.2.0-23 Ubuntu 12.04 x64 - ptracesysret Local Privilege Escalation / CVE-2014-4699 ptrace/sysret PoC by Vitaly Nikolenko [email protected] gcc -O2 pocv0.c This code is kernel specific. On Ubuntu 12.04.0 LTS 3.2.0-23-generic, the following will trigger the GP in sysret and overwrite...

unbreakable enterprise kernel security update

kernel-uek 3.8.13-35.1.3.el6uek - l2tp: fix an unprivileged user to kernel privilege escalation Sasha Levin Orabug: 19229497 CVE-2014-4943 CVE-2014-4943 - ptrace,x86: force IRET path after a ptracestop Tejun Heo Orabug: 19230689 CVE-2014-4699 - net: flowdissector: fail on evil iph-ihl Jason Wang...

unbreakable enterprise kernel security update

kernel-uek 2.6.32-400.36.4uek - l2tp: fix an unprivileged user to kernel privilege escalation Sasha Levin Orabug: 19229529 CVE-2014-4943 CVE-2014-4943 - ptrace,x86: force IRET path after a ptracestop Tejun Heo Orabug: 19230692 CVE-2014-4699...

unbreakable enterprise kernel security update

2.6.39-400.215.4 - l2tp: fix an unprivileged user to kernel privilege escalation Sasha Levin Orabug: 19229505 CVE-2014-4943 CVE-2014-4943 - ptrace,x86: force IRET path after a ptracestop Tejun Heo Orabug: 19230690 CVE-2014-4699...

USN-2284-1: Linux kernel (OMAP4) vulnerabilities

Sasha Levin reported a flaw in the Linux kernel's point-to-point protocol PPP when used with the Layer Two Tunneling Protocol L2TP. A local user could exploit this flaw to gain administrative privileges. CVE-2014-4943 Andy Lutomirski discovered a flaw with the Linux kernel's ptrace syscall on x86...

CVE-2014-4699

The Linux kernel before 3.15.4 on Intel processors does not properly restrict use of a non-canonical value for the saved RIP address in the case of a system call that does not use IRET, which allows local users to leverage a race condition and gain privileges, or cause a denial of service double...

DEBIAN-CVE-2014-4699

The Linux kernel before 3.15.4 on Intel processors does not properly restrict use of a non-canonical value for the saved RIP address in the case of a system call that does not use IRET, which allows local users to leverage a race condition and gain privileges, or cause a denial of service double...

Race condition

The Linux kernel before 3.15.4 on Intel processors does not properly restrict use of a non-canonical value for the saved RIP address in the case of a system call that does not use IRET, which allows local users to leverage a race condition and gain privileges, or cause a denial of service double...

Debian DSA-2972-1 : linux - security update

Andy Lutomirski discovered that the ptrace syscall was not verifying the RIP register to be valid in the ptrace API on x8664 processors. An unprivileged user could use this flaw to crash the kernel resulting in denial of service or for privilege escalation. %NASLMINLEVEL 70300 C Tenable Network...

Ubuntu: Security Advisory (USN-2270-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2014 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...

Ubuntu: Security Advisory (USN-2266-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2014 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...

Ubuntu: Security Advisory (USN-2269-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2014 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...