Design/Logic Flaw

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...

CVE-2019-7303 Snapd seccomp filter TIOCSTI ioctl bypass

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...

CVE-2019-7303

CVE-2019-7303 affects Canonical snapd before 2.37.4, where the seccomp filter for strict mode snaps could bypass input restrictions by allowing a 64-bit ioctl path (TIOCSTI) to insert characters into a terminal on a 64-bit host. The root cause is a mismatch: seccomp rules target 64-bit ioctl(2) c...

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...

Fedora 29 : flatpak (2019-7d09431f07)

Update to 1.2.4 - seccomp: Only compare the low 32bit of the TIOCSTI ioctl args. - Support multiple nvidia cards on the machine - Fix support for systems where XDGRUNTIMEDIR is /var/run which is a symlink like gentoo. - Fix potential crash when updating apps. - flatpak list --arch now works...

openSUSE Security Update : containerd / docker and go (openSUSE-2019-1044)

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...

openSUSE Security Update : the Linux Kernel (openSUSE-2019-398) (Spectre)

The openSUSE Leap 15.0 kernel was updated to receive various security and bugfixes. The following security bugs were fixed : - CVE-2018-3639: Systems with microprocessors utilizing speculative execution and speculative execution of memory reads before the addresses of all prior memory writes are...

Design/Logic Flaw

Flatpak before 1.0.8, 1.1.x and 1.2.x before 1.2.4, and 1.3.x before 1.3.1 allows a sandbox bypass. Flatpak versions since 0.8.1 address CVE-2017-5226 by using a seccomp filter to prevent sandboxed apps from using the TIOCSTI ioctl, which could otherwise be used to inject commands into the...

CVE-2019-10063

Flatpak before 1.0.8, 1.1.x and 1.2.x before 1.2.4, and 1.3.x before 1.3.1 allows a sandbox bypass. Flatpak versions since 0.8.1 address CVE-2017-5226 by using a seccomp filter to prevent sandboxed apps from using the TIOCSTI ioctl, which could otherwise be used to inject commands into the...

CVE-2019-10063

Flatpak before 1.0.8, 1.1.x and 1.2.x before 1.2.4, and 1.3.x before 1.3.1 allows a sandbox bypass. Flatpak versions since 0.8.1 address CVE-2017-5226 by using a seccomp filter to prevent sandboxed apps from using the TIOCSTI ioctl, which could otherwise be used to inject commands into the...

Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : snapd vulnerability (USN-3917-1)

The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-3917-1 advisory. The snapd default seccomp filter for strict mode snaps blocks the use of the ioctl system call when used with TIOCSTI as the second argume...

snap - seccomp BBlacklist for TIOCSTI can be Circumvented Exploit

/ 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...

snap - seccomp BBlacklist for TIOCSTI can be Circumvented

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...

snap seccomp TIOCSTI Blacklist Circumvention

snap: seccomp blacklist for TIOCSTI can be circumvented Related CVE Numbers: CVE-2019-7303. 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 ev...

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-2019-7303

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...