CVE-2013-1740

Public Exploit

Description

The ssl_Do1stHandshake function in sslsecur.c in libssl in Mozilla Network Security Services (NSS) before 3.15.4, when the TLS False Start feature is enabled, allows man-in-the-middle attackers to spoof SSL servers by using an arbitrary X.509 certificate during certain handshake traffic.

Category

5.8
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.80% Top 30%
Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory opensuse.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00004.html vendor advisory
http://www.vmware.com/security/advisories/VMSA-2014-0012.html
https://developer.mozilla.org/docs/NSS/NSS_3.15.4_release_notes
http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
http://www.securityfocus.com/bid/64944 vdb entry
http://www.securityfocus.com/archive/1/534161/100/0/threaded mailing list
http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html
https://exchange.xforce.ibmcloud.com/vulnerabilities/90394 vdb entry
https://bugzilla.redhat.com/show_bug.cgi?id=1053725
http://www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html
http://seclists.org/fulldisclosure/2014/Dec/23 mailing list
http://www.oracle.com/technetwork/topics/security/cpuoct2014-1972960.html
http://www.ubuntu.com/usn/USN-2088-1 vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00005.html vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=919877 exploit
https://bugs.gentoo.org/show_bug.cgi?id=498172

Frequently Asked Questions

What is the severity of CVE-2013-1740?
CVE-2013-1740 has been scored as a medium severity vulnerability.
How to fix CVE-2013-1740?
To fix CVE-2013-1740, 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-2013-1740 being actively exploited in the wild?
It is possible that CVE-2013-1740 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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