CVE-2017-12424: Buffer Overflow
First published: Thu Jul 31 2014(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/shadow | 1:4.8.1-1 1:4.13+dfsg1-1 1:4.15.3-2 1:4.16.0-4 | |
| Shadow Project | <4.5 | |
| Debian Linux | =9.0 |
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Reference Links
- https://packages.debian.org/reportbug
- https://packages.debian.org/installation-report
- http://wiki.debian.org/FAQsFromDebianUser
- http://lists.alioth.debian.org/mailman/listinfo/d-community-offtopic
- http://nuvreauspam.ro/gpg-transition.txt
- https://bugs.launchpad.net/ubuntu/+source/shadow/+bug/1266675
- http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/pkg-shadow-devel
- https://github.com/shadow-maint/shadow/commit/954e3d2e7113e9ac06632aee3c69b8d818cc8952
- https://security-tracker.debian.org/tracker/CVE-2017-12424
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=756630
- https://lists.debian.org/debian-lts-announce/2021/03/msg00020.html
- https://security.gentoo.org/glsa/201710-16
Frequently Asked Questions
What is the severity of CVE-2017-12424?
CVE-2017-12424 has a high severity due to potential crashes and memory corruption from malformed input.
How do I fix CVE-2017-12424?
To fix CVE-2017-12424, upgrade to shadow versions 1:4.8.1-1, 1:4.13+dfsg1-1, 1:4.15.3-2, or 1:4.16.0-4.
What versions of shadow are affected by CVE-2017-12424?
CVE-2017-12424 affects shadow versions prior to 4.5.
Can CVE-2017-12424 be exploited remotely?
CVE-2017-12424 may allow an attacker to exploit the vulnerability remotely through malformed input.
What kind of vulnerabilities does CVE-2017-12424 present?
CVE-2017-12424 presents vulnerabilities that can lead to buffer overflow or other unspecified behaviors.
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