CVE-2019-7303CWE-628

Snapd seccomp filter TIOCSTI ioctl bypass

Medium · published April 23, 2019

CVSS v3.0
5.7
EPSS
4%
Percentile
89.7
In the wild
Unconfirmed
What it is

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 ioctl(2) commands on a 64-bit platform; however, the Linux kernel only uses the lower 32 bits to determine which ioctl(2) commands to run. This issue affects: Canonical snapd versions prior to 2.37.4.

The record
Technical detail
CVSS v3.0
5.7 · MEDIUM
Vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.03700 · 89.7th percentile
Weakness
CWE-628 · Function Call with Incorrectly Specified Arguments
Published
2019-04-23T15:57Z
EPSS history
Timeline
  • 23 APR 15:57Z
    Snapd seccomp filter TIOCSTI ioctl bypass
    cvelistv5