Vulnerability Details CVE-2019-11328
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.009
EPSS Ranking 74.2%
CVSS Severity
CVSS v3 Score 8.8
CVSS v2 Score 9.0
References
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00028.html
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00059.html
- http://www.openwall.com/lists/oss-security/2019/05/16/1
- http://www.securityfocus.com/bid/108360
- https://github.com/sylabs/singularity/releases/tag/v3.2.0
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5O3TPL5OOTIZEI4H6IQBCCISBARJ6WL3/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LIHV7DSEVTB5SUPEZ2UXGS3Q6WMEQSO2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LNU5BUHFOTYUZVHFUSX2VG4S3RCPUEMA/
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00028.html
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00059.html
- http://www.openwall.com/lists/oss-security/2019/05/16/1
- http://www.securityfocus.com/bid/108360
- https://github.com/sylabs/singularity/releases/tag/v3.2.0
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5O3TPL5OOTIZEI4H6IQBCCISBARJ6WL3/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LIHV7DSEVTB5SUPEZ2UXGS3Q6WMEQSO2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LNU5BUHFOTYUZVHFUSX2VG4S3RCPUEMA/
Products affected by CVE-2019-11328
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cpe:2.3:a:sylabs:singularity:3.1.0
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cpe:2.3:a:sylabs:singularity:3.1.1
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cpe:2.3:a:sylabs:singularity:3.2.0
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cpe:2.3:o:fedoraproject:fedora:28
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cpe:2.3:o:fedoraproject:fedora:29
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cpe:2.3:o:fedoraproject:fedora:30
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cpe:2.3:o:opensuse:backports:sle-15
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cpe:2.3:o:opensuse:leap:15.1