CVE-2015-3240

Description

The pluto IKE daemon in libreswan before 3.15 and Openswan before 2.6.45, when built with NSS, allows remote attackers to cause a denial of service (assertion failure and daemon restart) via a zero DH g^x value in a KE payload in a IKE packet.

Category

4.3
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 1.10% Top 25%
Vendor Advisory redhat.com Vendor Advisory gentoo.org Vendor Advisory libreswan.org Vendor Advisory openswan.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://rhn.redhat.com/errata/RHSA-2015-1979.html vendor advisory
http://www.securitytracker.com/id/1033418 vdb entry
http://www.securityfocus.com/bid/77536 vdb entry
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
https://security.gentoo.org/glsa/201603-13 vendor advisory
https://libreswan.org/security/CVE-2015-3240/CVE-2015-3240.txt vendor advisory
https://lists.openswan.org/pipermail/users/2015-August/023401.html mailing list vendor advisory

Frequently Asked Questions

What is the severity of CVE-2015-3240?
CVE-2015-3240 has been scored as a medium severity vulnerability.
How to fix CVE-2015-3240?
To fix CVE-2015-3240, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2015-3240 being actively exploited in the wild?
It is possible that CVE-2015-3240 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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