CVE-2016-6252: Integer Overflow
First published: Sat Jul 23 2016(Updated: )
Integer overflow in shadow 4.2.1 allows local users to gain privileges via crafted input to newuidmap.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/shadow | 1:4.5-1.1 1:4.8.1-1 1:4.13+dfsg1-1 1:4.13+dfsg1-2 1:4.13+dfsg1-3 | |
| Shadow Project | =4.2.1 | |
| =4.2.1 |
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Reference Links
- https://security-tracker.debian.org/tracker/CVE-2016-6252
- https://anonscm.debian.org/git/pkg-shadow/shadow.git/commit/?id=68cd195044deb448c865d267499e1e4fd9322057
- https://anonscm.debian.org/cgit/pkg-shadow/shadow.git/commit/?id=dd729b3
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=832170
- http://www.debian.org/security/2017/dsa-3793
- http://www.openwall.com/lists/oss-security/2016/07/19/6
- http://www.openwall.com/lists/oss-security/2016/07/19/7
- http://www.openwall.com/lists/oss-security/2016/07/20/2
- http://www.openwall.com/lists/oss-security/2016/07/25/7
- http://www.securityfocus.com/bid/92055
- https://bugzilla.suse.com/show_bug.cgi?id=979282
- https://github.com/shadow-maint/shadow/issues/27
- https://security.gentoo.org/glsa/201706-02
- https://github.com/shadow-maint/shadow/commit/1d5a926cc2d6078d23a96222b1ef3e558724dad1
Frequently Asked Questions
What is the severity of CVE-2016-6252?
CVE-2016-6252 is classified as a high severity vulnerability allowing local privilege escalation.
How do I fix CVE-2016-6252?
To fix CVE-2016-6252, upgrade the shadow package to version 1:4.5-1.1 or later.
Which versions of shadow are affected by CVE-2016-6252?
All versions of shadow prior to 1:4.5-1.1, including version 4.2.1, are affected by CVE-2016-6252.
Who can exploit CVE-2016-6252?
Local users can exploit CVE-2016-6252 to gain elevated privileges through crafted input.
What is the nature of the vulnerability in CVE-2016-6252?
CVE-2016-6252 involves an integer overflow in shadow that can be exploited to escalate privileges.
- collector/debian-bugs
- alias/CVE-2016-6252
- collector/security-tracker-debian
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- collector/mitre-cve
- source/MITRE
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- collector/nvd-index
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- source/NVD
- agent/software-canonical-lookup
- agent/last-modified-date
- agent/source
- agent/tags
- agent/softwarecombine
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- package-manager/debian
- vendor/shadow project
- canonical/shadow project
- version/shadow project/4.2.1