CVE-2019-7303

Snapd seccomp filter TIOCSTI ioctl bypass

Published Apr 23, 2019 CVSS 3.1 · 7.5 High EPSS 3.7% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2019-16847 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.
Ubuntu USN Ubuntu USN USN-3917-1 snapd vulnerability
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
canonical
Published
Updated
Sep 17, 2024, 1:46 AM
Reserved
Feb 1, 2019, 12:00 AM
Status
Modified
Published
Apr 23, 2019, 4:29 PM
Modified
Jun 17, 2026, 2:40 AM