CVE-2019-7303

Name: CVE-2019-7303
Creator: NVD / NIST
Published: 2019-04-23T16:29:10.64+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 3.70%

Last modified Jun 17, 2026

CVE-2019-7303 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 3.70% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS Probability

3.70%

88.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-628

Affected Software

Vendor	Product	Versions
Canonical	Snapd	< 2.37.4
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	18.04
Canonical	Ubuntu Linux	18.10

References

https://usn.ubuntu.com/3917-1/Third Party Advisory
https://www.exploit-db.com/exploits/46594Exploit, Third Party Advisory, VDB Entry
https://usn.ubuntu.com/3917-1/Third Party Advisory
https://www.exploit-db.com/exploits/46594Exploit, Third Party Advisory, VDB Entry

Timeline

Published: Apr 23, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-7303?

How severe is CVE-2019-7303?

CVE-2019-7303 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 3.70% probability of exploitation in the next 30 days.

How do I fix CVE-2019-7303?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-7303?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST