Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Sylabs | Singularity | >= 3.1.0, < 3.2.0 |
| Fedoraproject | Fedora | 28 |
| Opensuse | Backports | sle-15 |
| Opensuse | Leap | 15.1 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00028.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00059.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2019/05/16/1ExploitMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/108360Broken Link
- https://github.com/sylabs/singularity/releases/tag/v3.2.0Release Notes
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00028.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00059.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2019/05/16/1ExploitMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/108360Broken Link
- https://github.com/sylabs/singularity/releases/tag/v3.2.0Release Notes
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
FAQ
What is CVE-2019-11328?
CVE-2019-11328 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 allowin...
How severe is CVE-2019-11328?
CVE-2019-11328 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-11328?
Check the references section above for vendor advisories and patch information. Affected products include: Sylabs Singularity, Fedoraproject Fedora, Opensuse Backports, Opensuse Leap.