CVE-2019-7303 MEDIUM

CVE-2019-7303: Snapd seccomp filter TIOCSTI ioctl bypass

Vendor Canonical
Product snapd
Weakness CWE-628
Published April 23, 2019
Last update September 17, 2024

CVSS base score

5.7/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 23, 2019 CVE published
September 17, 2024 Record updated