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Vuln ID | Summary | CVSS Severity |
---|---|---|
CVE-2018-7169 |
An issue was discovered in shadow 4.5. newgidmap (in shadow-utils) is setuid and allows an unprivileged user to be placed in a user namespace where setgroups(2) is permitted. This allows an attacker to remove themselves from a supplementary group, which may allow access to certain filesystem paths if the administrator has used "group blacklisting" (e.g., chmod g-rwx) to restrict access to paths. This flaw effectively reverts a security feature in the kernel (in particular, the /proc/self/setgroups knob) to prevent this sort of privilege escalation. Published: February 15, 2018; 3:29:00 PM -0500 |
V4.0:(not available) V3.0: 5.3 MEDIUM V2.0: 5.0 MEDIUM |