Vulnerability 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."
CVSS Score
7.5
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Canonical | Snapd | < 2.39 |
Related Weaknesses (CWE)
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.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://www.openwall.com/lists/oss-security/2019/04/18/4ExploitMailing ListPatch
- 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.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://www.openwall.com/lists/oss-security/2019/04/18/4ExploitMailing ListPatch
FAQ
What is CVE-2019-11503?
CVE-2019-11503 is a vulnerability with a CVSS score of 7.5 (HIGH). 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...
How severe is CVE-2019-11503?
CVE-2019-11503 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-11503?
Check the references section above for vendor advisories and patch information. Affected products include: Canonical Snapd.