CVE-2016-8568: Null Pointer Dereference
First published: Mon Oct 10 2016(Updated: )
<a href="https://access.redhat.com/security/cve/CVE-2016-8568">CVE-2016-8568</a> * Read out-of-bounds in git_oid_nfmt: <a href="https://github.com/libgit2/libgit2/issues/3936">https://github.com/libgit2/libgit2/issues/3936</a> <a href="https://access.redhat.com/security/cve/CVE-2016-8569">CVE-2016-8569</a> * DoS using a null pointer dereference in git_commit_message: <a href="https://github.com/libgit2/libgit2/issues/3937">https://github.com/libgit2/libgit2/issues/3937</a> Proposed patch: <a href="https://github.com/libgit2/libgit2/pull/3956">https://github.com/libgit2/libgit2/pull/3956</a>
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Fedora | =23 | |
| Fedora | =24 | |
| Fedora | =25 | |
| SUSE Linux | =42.1 | |
| SUSE Linux | =42.2 | |
| SUSE Linux | =13.2 | |
| SUSE Linux Enterprise Server | =12.0 | |
| libgit2 | <=0.24.2 |
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Reference Links
- https://access.redhat.com/security/cve/CVE-2016-8568
- https://github.com/libgit2/libgit2/issues/3936
- https://access.redhat.com/security/cve/CVE-2016-8569
- https://github.com/libgit2/libgit2/issues/3937
- https://github.com/libgit2/libgit2/pull/3956
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1383212
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1383213
- https://bugzilla.redhat.com/show_bug.cgi?id=1383211
- http://lists.opensuse.org/opensuse-updates/2016-12/msg00075.html
- http://lists.opensuse.org/opensuse-updates/2017-01/msg00103.html
- http://lists.opensuse.org/opensuse-updates/2017-01/msg00110.html
- http://lists.opensuse.org/opensuse-updates/2017-01/msg00114.html
- http://www.openwall.com/lists/oss-security/2016/10/08/7
- http://www.securityfocus.com/bid/93466
- https://github.com/libgit2/libgit2/releases/tag/v0.24.3
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4E77DG5KGQ7L34U75QY7O6NIPKZNQHQJ/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X3JBSNJAXP7JA3TGE2NPNRTD77JXFG4E/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XVUEIG6EESZB6BRU2IE3F5NRUEHMAEKC/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X3JBSNJAXP7JA3TGE2NPNRTD77JXFG4E/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XVUEIG6EESZB6BRU2IE3F5NRUEHMAEKC/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4E77DG5KGQ7L34U75QY7O6NIPKZNQHQJ/
Frequently Asked Questions
What is the severity of CVE-2016-8568?
CVE-2016-8568 is rated as a moderate severity vulnerability.
How do I fix CVE-2016-8568?
To fix CVE-2016-8568, update libgit2 to a version higher than 0.24.2.
Which software is affected by CVE-2016-8568?
CVE-2016-8568 affects Fedora versions 23, 24, 25, openSUSE Leap 42.1, 42.2, and openSUSE 13.2, as well as SUSE Linux Enterprise 12.0.
What type of vulnerability is CVE-2016-8568?
CVE-2016-8568 is an out-of-bounds read vulnerability in the git_oid_nfmt function.
Is there a workaround for CVE-2016-8568?
There is no documented workaround for CVE-2016-8568; updating to a non-affected version is recommended.
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