CVE-2017-12424
9.8
CRITICAL · CVSS 3.1 · EPSS 2.7% (pctl 85)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
In shadow before 4.5, the newusers tool could be made to manipulate internal data structures in ways unintended by the authors. Malformed input may lead to crashes (with a buffer overflow or other memory corruption) or other unspecified behaviors. This crosses a privilege boundary in, for example, certain web-hosting environments in which a Control Panel allows an unprivileged user account to create subaccounts.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 2.66% — more likely to be exploited than 85% of all CVEs |
| Weakness | CWE-119 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2017-08-04 |
| Last modified | 2026-06-17 |
Affected (2)
| Vendor | Product |
|---|---|
| debian | debian linux |
| shadow project | shadow |
References
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=756630
- https://bugs.launchpad.net/ubuntu/+source/shadow/+bug/1266675
- https://github.com/shadow-maint/shadow/commit/954e3d2e7113e9ac06632aee3c69b8d818cc8952
- https://lists.debian.org/debian-lts-announce/2021/03/msg00020.html
- https://security.gentoo.org/glsa/201710-16
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=756630
- https://bugs.launchpad.net/ubuntu/+source/shadow/+bug/1266675
- https://github.com/shadow-maint/shadow/commit/954e3d2e7113e9ac06632aee3c69b8d818cc8952
- https://lists.debian.org/debian-lts-announce/2021/03/msg00020.html
- https://security.gentoo.org/glsa/201710-16
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