CVE-2019-11503

Name: CVE-2019-11503
Creator: NVD / NIST
Published: 2019-04-24T21:29:00.82+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.42%

Last modified Jun 17, 2026

CVE-2019-11503 is a vulnerability of currently unknown severity. snap-confine as included in snapd before 2.39 did not guard against symlink races when performing the chdir() to the current working directory of the calling user, aka a "cwd restore permission bypass.". EPSS estimates a 2.42% chance of exploitation in the next 30 days.

Description

snap-confine as included in snapd before 2.39 did not guard against symlink races when performing the chdir() to the current working directory of the calling user, aka a "cwd restore permission bypass."

Metrics

EPSS Probability

2.42%

82.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-59

Affected Software

Vendor	Product	Versions
Canonical	Snapd	< 2.39

References

http://www.openwall.com/lists/oss-security/2019/04/25/7Third Party Advisory
https://github.com/snapcore/snapd/pull/6642Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6VACEKVQ7UAZ32WO4ZKCFW6YOBSYJ76L/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VPU6APEZHAA7N2AI57OT4J2P7NKHFOLM/
https://www.openwall.com/lists/oss-security/2019/04/18/4Exploit, Mailing List, Patch, Third Party Advisory
http://www.openwall.com/lists/oss-security/2019/04/25/7Third Party Advisory
https://github.com/snapcore/snapd/pull/6642Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6VACEKVQ7UAZ32WO4ZKCFW6YOBSYJ76L/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VPU6APEZHAA7N2AI57OT4J2P7NKHFOLM/
https://www.openwall.com/lists/oss-security/2019/04/18/4Exploit, Mailing List, Patch, Third Party Advisory

Timeline

Published: Apr 24, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-11503?

How severe is CVE-2019-11503?

Severity scoring for CVE-2019-11503 is pending analysis. The EPSS model estimates a 2.42% probability of exploitation in the next 30 days.

How do I fix CVE-2019-11503?

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-2019-11503?

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

Scan your code now

Source: NVD / NIST