snap - seccomp BBlacklist for TIOCSTI can be Circumvented

/ snap uses a seccomp filter to prevent the use of the TIOCSTI ioctl; in the source code, this filter is expressed as follows: TIOCSTI allows for faking input man ttyioctl TODO: this should be scaled back even more ioctl - !TIOCSTI In the X86-64 version of the compiled seccomp filter, this result...

USN-3917-1: snapd vulnerability

The snapd default seccomp filter for strict mode snaps blocks the use of the ioctl system call when used with TIOCSTI as the second argument to the system call. Jann Horn discovered that this restriction could be circumvented on 64 bit architectures. A malicious snap could exploit this to bypass...

USN-3917-1 snapd vulnerability

The snapd default seccomp filter for strict mode snaps blocks the use of the ioctl system call when used with TIOCSTI as the second argument to the system call. Jann Horn discovered that this restriction could be circumvented on 64 bit architectures. A malicious snap could exploit this to bypass...

CVE-2019-9893

libseccomp before 2.4.0 did not correctly generate 64-bit syscall argument comparisons using the arithmetic operators LT, GT, LE, GE, which might able to lead to bypassing seccomp filters and potential privilege escalations...

CVE-2019-9893: Undefined Security Weakness

libseccomp before 2.4.0 did not correctly generate 64-bit syscall argument comparisons using the arithmetic operators LT, GT, LE, GE, which might able to lead to bypassing seccomp filters and potential privilege escalations...

CVE-2019-7303

A vulnerability in the seccomp filters of Canonical snapd before version 2.37.4 allows a strict mode snap to insert characters into a terminal on a 64-bit host. The seccomp rules were generated to match 64-bit ioctl2 commands on a 64-bit platform; however, the Linux kernel only uses the lower 32...

UBUNTU-CVE-2019-7303

A vulnerability in the seccomp filters of Canonical snapd before version 2.37.4 allows a strict mode snap to insert characters into a terminal on a 64-bit host. The seccomp rules were generated to match 64-bit ioctl2 commands on a 64-bit platform; however, the Linux kernel only uses the lower 32...

libseccomp < 2.4.0 - Incorrect Compilation of Arithmetic Comparisons Exploit

When libseccomp compiles filters for 64-bit systems, it needs to split 64-bit comparisons into 32-bit comparisons because classic BPF can't operate on 64-bit values directly. libseccomp offers both bitwise comparisons NE, EQ, MASKEDEQ and arithmetic comparisons LT, LE, GE, GT. Bitwise comparisons...

libseccomp 2.4.0 - Incorrect Compilation of Arithmetic Comparisons

libseccomp 2.4.0 - Incorrect Compilation of Arithmetic Comparisons When libseccomp compiles filters for 64-bit systems, it needs to split 64-bit comparisons into 32-bit comparisons because classic BPF can't operate on 64-bit values directly. libseccomp offers both bitwise comparisons NE, EQ,...

libseccomp Incorrect Compilation Of Arithmetic Comparisons

libseccomp: incorrect compilation of arithmetic comparisons When libseccomp compiles filters for 64-bit systems, it needs to split 64-bit comparisons into 32-bit comparisons because classic BPF can't operate on 64-bit values directly. libseccomp offers both bitwise comparisons NE, EQ, MASKEDEQ an...

Android Kernel < 4.8 - ptrace seccomp Filter Bypass

/ The seccomp.2 manpage http://man7.org/linux/man-pages/man2/seccomp.2.html documents: Before kernel 4.8, the seccomp check will not be run again after the tracer is notified. This means that, on older ker‐ nels, seccomp-based sandboxes must not allow use of ptrace2—even of other sandboxed...

Android Kernel < 4.8 - ptrace seccomp Filter Bypass Exploit

/ The seccomp.2 manpage http://man7.org/linux/man-pages/man2/seccomp.2.html documents: Before kernel 4.8, the seccomp check will not be run again after the tracer is notified. This means that, on older ker‐ nels, seccomp-based sandboxes must not allow use of ptrace2—even of other sandboxed...

Android Kernel 4.8 - ptrace seccomp Filter Bypass

Android Kernel 4.8 - ptrace seccomp Filter Bypass / The seccomp.2 manpage http://man7.org/linux/man-pages/man2/seccomp.2.html documents: Before kernel 4.8, the seccomp check will not be run again after the tracer is notified. This means that, on older ker‐ nels, seccomp-based sandboxes must not...

runc security update

1.0.0-19.rc5.git4bb1fe4.0.3.el7 - Apply patch for CVE-2019-5736 Wiekus Beukes 1.0.0-19.rc5.git4bb1fe4.0.2.el7 - update Go version to 1.10.8, fix version string Laszlo Laca Peter 1.0.0-19.rc5.git4bb1fe4.0.1.el7 - Tuning .spec file 2:1.0.0-19.rc5.git4bb1fe4 - release v1.0.0rc5...

SUSE SLED15 / SLES15 Security Update : containerd, docker / go (SUSE-SU-2018:4297-1)

This update for containerd, docker and go fixes the following issues : containerd and docker : Add backport for building containerd bsc1102522, bsc1113313 Upgrade to containerd v1.1.2, which is required for Docker v18.06.1-ce. bsc1102522 Enable seccomp support on SLE12 fate325877 Update to...

openSUSE: Security Advisory for containerd (openSUSE-SU-2018:4306-1)

The remote host is missing an update for the Copyright C 2019 Greenbone Networks GmbH 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-or-later This program is free software; you can...

openSUSE Security Update : containerd / docker and go (openSUSE-2018-1626)

This update for containerd, docker and go fixes the following issues : containerd and docker : - Add backport for building containerd bsc1102522, bsc1113313 - Upgrade to containerd v1.1.2, which is required for Docker v18.06.1-ce. bsc1102522 - Enable seccomp support fate325877 - Update to...

Security update for containerd, docker and go (important)

This update for containerd, docker and go fixes the following issues: containerd and docker: - Add backport for building containerd bsc1102522, bsc1113313 - Upgrade to containerd v1.1.2, which is required for Docker v18.06.1-ce. bsc1102522 - Enable seccomp support fate325877 - Update to container...

SUSE-SU-2018:4297-1 Security update for containerd, docker and go

This update for containerd, docker and go fixes the following issues: containerd and docker: - Add backport for building containerd bsc1102522, bsc1113313 - Upgrade to containerd v1.1.2, which is required for Docker v18.06.1-ce. bsc1102522 - Enable seccomp support on SLE12 fate325877 - Update to...

SUSE SLES12 Security Update : qemu (SUSE-SU-2018:4237-1)

This update for qemu fixes the following issues : Security issues fixed : CVE-2018-10839: Fixed NE2000 NIC emulation support that is vulnerable to an integer overflow, which could lead to buffer overflow issue. It could occur when receiving packets over the network. A user inside guest could use...