Google Details Linux Kernel Defenses, New and Old

Developers with Android’s Security Team peeled back some of the layers on the mobile operating system this week; describing the lengths Google goes to protect the Linux kernel. In a post to Google’s Security Blog, Jeff Vander Stoep clarified several mitigations slated for inclusion in Nougat, the...

Fedora 23 : 2:docker (2016-6a0d540088)

built docker @projectatomic/fedora-1.10.3 commit f476348 ---- built docker @projectatomic/fedora-1.10.3 commit f476348 ---- built docker @projectatomic/fedora-1.10.3 commit 4158ccc ---- Resolves: 1335649 - enable Red Hat subscription use in Docker containers on Fedora ---- built docker...

The vulnerability of the Linux operating system’s kernel, which allows a hacker to circumvent existing access restrictions

The vulnerability of the securecomputing function in the seccomp subsystem of the Linux operating system’s kernel lies in the fact that when the CONFIGSECCOMP option is enabled, errors occur during the processing of 32-bit processes spawned by 64-bit calls, or 64-bit processes spawned by 32-bit...

The vulnerability of Google Chrome’s browser allows a malicious actor to circumvent sandboxing restrictions.

Google Chrome browser contains a vulnerability related to incorrect block merging in the PointerCompare function of codegen.cc within Seccomp-BPF. Exploiting this vulnerability allows malicious actors to bypass sandbox restrictions by accessing the render process...

PT-2016-3292 · Linux +2 · Linux Kernel +2

Name of the Vulnerable Software and Affected Versions: Android kernel versions prior to 4.8 Description: The issue is related to the seccomp implementation in the Linux kernel, specifically with access control errors. This could allow an attacker to escalate privileges and execute arbitrary code...

Fedora 22 : pax-utils-1.1.4-1.fc22 (2015-6565f29415)

Changes since 1.0.5: security: whitelist the getcwd syscall security: fix build on systems w/out sisyscall security: whitelist the futex syscall security: whitelist dup syscalls security: do not warn when seccomp is disabled in the kernel security: whitelist fakeroot syscalls security: add a debu...

Fedora 23 : pax-utils-1.1.4-1.fc23 (2015-73cdd43bc0)

Changes since 1.0.5: security: whitelist the getcwd syscall security: fix build on systems w/out sisyscall security: whitelist the futex syscall security: whitelist dup syscalls security: do not warn when seccomp is disabled in the kernel security: whitelist fakeroot syscalls security: add a debu...

Linux Kernel - espfix64 Nested NMIs Interrupting Privilege Escalation

Linux Kernel - espfix64 Nested NMIs Interrupting Privilege Escalation / +++++ CVE-2015-3290 +++++ High impact NMI bug on x8664 systems 3.13 and newer, embargoed. Also fixed by: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9b6e6a8334d56354853f9c255d1395c2ba570e0a The...

Linux x86_64 NMI Privilege Escalation Due to Nested NMIs Interrupting espfix64

Exploit for linux platform in category local exploits / +++++ CVE-2015-3290 +++++ High impact NMI bug on x8664 systems 3.13 and newer, embargoed. Also fixed by: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9b6e6a8334d56354853f9c255d1395c2ba570e0a The other fix...

DEBIAN-CVE-2015-2830

arch/x86/kernel/entry64.S in the Linux kernel before 3.19.2 does not prevent the TSCOMPAT flag from reaching a user-mode task, which might allow local users to bypass the seccomp or audit protection mechanism via a crafted application that uses the 1 fork or 2 close system call, as demonstrated b...

CVE-2015-2830

arch/x86/kernel/entry64.S in the Linux kernel before 3.19.2 does not prevent the TSCOMPAT flag from reaching a user-mode task, which might allow local users to bypass the seccomp or audit protection mechanism via a crafted application that uses the 1 fork or 2 close system call, as demonstrated b...

CVE-2015-2830

arch/x86/kernel/entry64.S in the Linux kernel before 3.19.2 does not prevent the TSCOMPAT flag from reaching a user-mode task, which might allow local users to bypass the seccomp or audit protection mechanism via a crafted application that uses the 1 fork or 2 close system call, as demonstrated b...

Code injection

arch/x86/kernel/entry64.S in the Linux kernel before 3.19.2 does not prevent the TSCOMPAT flag from reaching a user-mode task, which might allow local users to bypass the seccomp or audit protection mechanism via a crafted application that uses the 1 fork or 2 close system call, as demonstrated b...

CVE-2015-2830

CVE-2015-2830 affects the Linux kernel (arch/x86/kernel/entry_64.S) prior to 3.19.2. The TS_COMPAT flag can reach a user-mode task, potentially allowing local attackers to bypass seccomp or audit protections via crafted applications using fork or close. A fix is available in 3.19.2 and later; att...

CVE-2015-2830

arch/x86/kernel/entry64.S in the Linux kernel before 3.19.2 does not prevent the TSCOMPAT flag from reaching a user-mode task, which might allow local users to bypass the seccomp or audit protection mechanism via a crafted application that uses the 1 fork or 2 close system call, as demonstrated b...

CVE-2015-2830

arch/x86/kernel/entry64.S in the Linux kernel before 3.19.2 does not prevent the TSCOMPAT flag from reaching a user-mode task, which might allow local users to bypass the seccomp or audit protection mechanism via a crafted application that uses the 1 fork or 2 close system call, as demonstrated b...

CVE-2015-2830

arch/x86/kernel/entry64.S in the Linux kernel before 3.19.2 does not prevent the TSCOMPAT flag from reaching a user-mode task, which might allow local users to bypass the seccomp or audit protection mechanism via a crafted application that uses the 1 fork or 2 close system call, as demonstrated b...

UBUNTU-CVE-2015-2830

arch/x86/kernel/entry64.S in the Linux kernel before 3.19.2 does not prevent the TSCOMPAT flag from reaching a user-mode task, which might allow local users to bypass the seccomp or audit protection mechanism via a crafted application that uses the 1 fork or 2 close system call, as demonstrated b...

Did the “Man With No Name” Feel Insecure?

Posted by James Forshaw, Taker of Names Sometimes when I'm doing security research I'll come across a bug which surprises me. I discovered just such a bug in the Windows version of Chrome which exposed a little-known security detail in the OS. The bug, CVE-2014-3196 was fixed in M38, so it seemed...

docker 0.11 VMM-container Breakout

No description provided by source. / shocker: docker PoC VMM-container breakout C 2014 Sebastian Krahmer Demonstrates that any given docker image someone is asking you to run in your docker setup can access ANY file on your host, e.g. dumping hosts /etc/shadow or other sensitive info, compromisin...