Important: kernel

Issue Overview: Stack-based out-of-bounds read via vmcall instruction Linux kernel compiled with the KVM virtualization CONFIGKVM support is vulnerable to an out-of-bounds read access issue. It could occur when emulating vmcall instructions invoked by a guest. A guest user/process could use this...

Updated kernel-tmb packages fix security vulnerabilities

This kernel-tmb update is based on the upstream 4.14.18 and adds some support for mitigating Spectre, variant 1 CVE-2017-5753 and as it is built with the retpoline-aware gcc-5.5.0-1.mga6, it now provides full retpoline mitigation for Spectre, variant 2 CVE-2017-5715. The BPF interpreter has been...

Immunity Canvas: SPECTRE_FILE_LEAK

Name| spectrefileleak ---|--- CVE| CVE-2017-5753 Exploit Pack| CANVAS Description| Spectre File Leak Notes| CVE Name: CVE-2017-5753 Notes: This module gives an unpriviledged user the ability to dump a file from the kernel memory. A common scenario is to dump the /etc/shadow or kerberos tickets...

Linux Kernel < 4.4.0-83 / < 4.8.0-58 (Ubuntu 14.04/16.04) - Privilege Escalation Exploit

Linux Kernel 4.4.0-83 / 4.8.0-58 Ubuntu 14.04/16.04 - Local Privilege Escalation KASLR / SMEP // A proof-of-concept local root exploit for CVE-2017-1000112. // Includes KASLR and SMEP bypasses. No SMAP bypass. // Tested on Ubuntu trusty 4.4.0- and Ubuntu xenial 4-8-0- kernels. // // Usage: //...

Linux Kernel - mincore() Heap Page Disclosure (PoC)

Linux Kernel - mincore Heap Page Disclosure PoC / The source is modified from https://bugs.chromium.org/p/project-zero/issues/detail?id=1431 I try to find out infomation useful from the infoleak The kernel address can be easily found out from the uninitialized memory leaked from kernel, which can...

Linux Kernel - 'mincore()' Heap Page Disclosure (PoC)

/ The source is modified from https://bugs.chromium.org/p/project-zero/issues/detail?id=1431 I try to find out infomation useful from the infoleak The kernel address can be easily found out from the uninitialized memory leaked from kernel, which can help bypass kaslr / define GNUSOURCE include...

Linux Kernel 4.13 (Debian 9) - Local Privilege Escalation

/ disablemapminadd.c / / / include include include include include include include / offsets might differ, kernel was custom compiled you can read vmlinux and caculate the offset when testing / / define OFFSETKERNELBASE 0x000000 / define MMAPMINADDR 0x1101de8 define DACMMAPMINADDR 0xe8e810 / get...

CVE-2017-1000410

The Linux kernel version 3.3-rc1 and later is affected by a vulnerability lies in the processing of incoming L2CAP commands - ConfigRequest, and ConfigResponse messages. This info leak is a result of uninitialized stack variables that may be returned to an attacker in their uninitialized state. B...

Design/Logic Flaw

The Linux kernel version 3.3-rc1 and later is affected by a vulnerability lies in the processing of incoming L2CAP commands - ConfigRequest, and ConfigResponse messages. This info leak is a result of uninitialized stack variables that may be returned to an attacker in their uninitialized state. B...

CVE-2017-1000410

The Linux kernel version 3.3-rc1 and later is affected by a vulnerability lies in the processing of incoming L2CAP commands - ConfigRequest, and ConfigResponse messages. This info leak is a result of uninitialized stack variables that may be returned to an attacker in their uninitialized state. B...

CVE-2017-1000410

The Linux kernel version 3.3-rc1 and later is affected by a vulnerability lies in the processing of incoming L2CAP commands - ConfigRequest, and ConfigResponse messages. This info leak is a result of uninitialized stack variables that may be returned to an attacker in their uninitialized state. B...

CVE-2017-1000410

Summary of CVE-2017-1000410 (Linux kernel info leak) : The vulnerability affects Linux kernel 3.3-rc1 and later in how L2CAP ConfigRequest/ConfigResponse are parsed. A stack variable (struct l2cap_conf_efs efs) is declared uninitialized and, depending on parsing flow and input, can be leaked back...

UBUNTU-CVE-2017-1000410

The Linux kernel version 3.3-rc1 and later is affected by a vulnerability lies in the processing of incoming L2CAP commands - ConfigRequest, and ConfigResponse messages. This info leak is a result of uninitialized stack variables that may be returned to an attacker in their uninitialized state. B...

CVE-2017-1000410

The Linux kernel version 3.3-rc1 and later is affected by a vulnerability lies in the processing of incoming L2CAP commands - ConfigRequest, and ConfigResponse messages. This info leak is a result of uninitialized stack variables that may be returned to an attacker in their uninitialized state. B...

EulerOS 2.0 SP1 : kernel (EulerOS-SA-2017-1245)

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - The iscsiifrx function in drivers/scsi/scsitransportiscsi.c in the Linux kernel through 4.13.2 allows local users to cause a denial of service...

SUSE-SU-2017:2869-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 12 SP2 kernel was updated to 4.4.90 to receive various security and bugfixes. The following security bugs were fixed: - CVE-2017-1000252: The KVM subsystem in the Linux kernel allowed guest OS users to cause a denial of service assertion failure, and hypervisor hang or...

Linux Kernel 4.14.0-rc4+ - 'waitid()' Privilege Escalation(CVE-2017-5123)

This is a guest post by a young and talented Portuguese exploiter, Federico Bento. He won this year’s Pwnie for Epic Achievement exploiting TIOCSTI ioctl. Days ago he posted a video demonstrating an exploit for CVE-2017-5123 and luckly for you I managed to convince him to do a write-up about it. ...

CVE-2017-14954

The waitid implementation in kernel/exit.c in the Linux kernel through 4.13.4 accesses rusage data structures in unintended cases. This can allow local users to obtain sensitive information and bypass the KASLR protection mechanism via a crafted system call...

CVE-2017-14954

The waitid implementation in kernel/exit.c in the Linux kernel through 4.13.4 accesses rusage data structures in unintended cases, which allows local users to obtain sensitive information, and bypass the KASLR protection mechanism, via a crafted system call...

CVE-2017-14954

The waitid implementation in kernel/exit.c in the Linux kernel through 4.13.4 accesses rusage data structures in unintended cases, which allows local users to obtain sensitive information, and bypass the KASLR protection mechanism, via a crafted system call...