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.
References (8)
Core 8
Core References
Release Notes x_refsource_confirm
https://github.com/sylabs/singularity/releases/tag/v3.2.0
Exploit, Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2019/05/16/1
Broken Link vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/108360
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LNU5BUHFOTYUZVHFUSX2VG4S3RCPUEMA/
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5O3TPL5OOTIZEI4H6IQBCCISBARJ6WL3/
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LIHV7DSEVTB5SUPEZ2UXGS3Q6WMEQSO2/
Third Party Advisory vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00028.html
Third Party Advisory vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00059.html
Scores
CVSS v3
8.8
EPSS
0.0061
EPSS Percentile
69.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-732
Status
published
Products (8)
fedoraproject/fedora
28
fedoraproject/fedora
29
fedoraproject/fedora
30
opensuse/backports
sle-15 (2 CPE variants)
opensuse/leap
15.1
sylabs/singularity
3.2.0 (3 CPE variants)
sylabs/singularity
3.1.0 - 3.2.0
sylabs/singularity
3.1.0 - 3.2.0Go
Published
May 14, 2019
Tracked Since
Feb 18, 2026