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| purl | pkg:deb/ubuntu/shadow@1:4.8.1-1ubuntu4 |
| Next non-vulnerable version | 1:4.8.1-1ubuntu5.20.04 |
| Latest non-vulnerable version | 1:4.8.1-1ubuntu5.20.04 |
| Risk | 3.1 |
| Vulnerability | Summary | Fixed by |
|---|---|---|
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VCID-n6ua-k7jb-aaap
Aliases: 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. |
Affected by 0 other vulnerabilities. |
| Vulnerability | Summary | Aliases |
|---|---|---|
| This package is not known to fix vulnerabilities. | ||
| Date | Actor | Action | Vulnerability | Source | VulnerableCode Version |
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