CVE-2019-11328

Public Exploit

Description

An issue was discovered in Singularity 3.1.0 to 3.2.0-rc2, a malicious user with local/network access to the host system (e.g. ssh) could exploit this vulnerability due to insecure permissions allowing a user to edit files within `/run/singularity/instances/sing/<user>/<instance>`. The manipulation of those files can change the behavior of the starter-suid program when instances are joined resulting in potential privilege escalation on the host.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.89% Top 30%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/sylabs/singularity/releases/tag/v3.2.0 release notes
http://www.openwall.com/lists/oss-security/2019/05/16/1 mailing list exploit third party advisory
http://www.securityfocus.com/bid/108360 vdb entry broken link
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LNU5BUHFOTYUZVHFUSX2VG4S3RCPUEMA/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5O3TPL5OOTIZEI4H6IQBCCISBARJ6WL3/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LIHV7DSEVTB5SUPEZ2UXGS3Q6WMEQSO2/ vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00028.html third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00059.html third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2019-11328?
CVE-2019-11328 has been scored as a high severity vulnerability.
How to fix CVE-2019-11328?
To fix CVE-2019-11328, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-11328 being actively exploited in the wild?
It is possible that CVE-2019-11328 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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