CVE-2019-11502: snap-confine in snapd before 2.38 incorrectly set the ownership of a snap application to the uid and gid of the first calling user

High severity · published Apr 24, 2019

CVE-2019-11502

snap-confine in snapd before 2.38 incorrectly set the ownership of a snap application to the uid and gid of the first calling user

7.5

CVSS

2.5%

EPSS

On KEV

Description

snap-confine in snapd before 2.38 incorrectly set the ownership of a snap application to the uid and gid of the first calling user. Consequently, that user had unintended access to a private /tmp directory.

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack vector

Network

Complexity

Low

Privileges

None

User interaction

None

Confidentiality

High

Integrity

None

Availability

None

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)2.5% · higher than 85% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

Snapd · Canonical

before 2.38 · source: NVD

Affected product

Snapd

Canonical

All Snapd CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2019-11502

CVE.org

https://www.cve.org/CVERecord?id=CVE-2019-11502

Third Party Advisory

http://www.openwall.com/lists/oss-security/2019/04/25/7

Patch

https://github.com/snapcore/snapd/commit/bdbfeebef03245176ae0dc323392bb0522a339b1

Exploit

https://www.openwall.com/lists/oss-security/2019/04/18/4