CVE-2016-5391: Null Pointer Dereference
First published: Wed Jul 13 2016(Updated: )
A vulnerability was found in libreswan 3.17. IKEv2 bogus proposal lacking DH transform causes pluto daemon to restart.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Libreswan | <=3.17 | |
| Red Hat Fedora | =23 | |
| Red Hat Fedora | =24 |
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Reference Links
- https://libreswan.org/security/CVE-2016-5391/CVE-2016-5391.txt
- https://bugzilla.redhat.com/show_bug.cgi?id=1356183
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/65R6OA5AY7K2UBQUDOLOS5Y3SCULQI6I/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UKMS7R4TG6LTAGEBOWVUXF6LAWQXLNXV/
Frequently Asked Questions
What is the severity of CVE-2016-5391?
CVE-2016-5391 has a severity rating that indicates it allows remote attackers to cause a denial of service.
What causes the vulnerability CVE-2016-5391?
The vulnerability CVE-2016-5391 is caused by a bogus IKEv2 proposal lacking a DH transform, leading to a NULL pointer dereference.
How do I fix CVE-2016-5391?
To fix CVE-2016-5391, upgrade Libreswan to version 3.18 or later.
Which software versions are affected by CVE-2016-5391?
CVE-2016-5391 affects Libreswan versions prior to 3.18, including 3.17.
Is CVE-2016-5391 specific to any operating systems?
Yes, CVE-2016-5391 affects certain Fedora versions, including Fedora 23 and Fedora 24.
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