CVE-2015-2318

Name: CVE-2015-2318
Creator: NVD / NIST
Published: 2018-01-08T19:29:00.797+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.97%

Last modified Jun 17, 2026

CVE-2015-2318 is a vulnerability of currently unknown severity. The TLS stack in Mono before 3.12.1 allows man-in-the-middle attackers to conduct message skipping attacks and consequently impersonate clients by leveraging missing handshake state validation, aka a "SMACK SKIP-TLS" issue.. EPSS estimates a 1.97% chance of exploitation in the next 30 days.

Description

The TLS stack in Mono before 3.12.1 allows man-in-the-middle attackers to conduct message skipping attacks and consequently impersonate clients by leveraging missing handshake state validation, aka a "SMACK SKIP-TLS" issue.

Metrics

EPSS Probability

1.97%

77.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-295

Affected Software

Vendor	Product	Versions
Mono-Project	Mono	< 3.12.1
Debian	Debian Linux	6.0

References

http://www.mono-project.com/news/2015/03/07/mono-tls-vulnerability/Vendor Advisory
http://www.openwall.com/lists/oss-security/2015/03/17/9Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/73253Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-2547-1Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1202869Issue Tracking, Third Party Advisory
https://github.com/mono/mono/commit/1509226c41d74194c146deb173e752b8d3cdeec4Third Party Advisory
https://mitls.org/pages/attacks/SMACK#skipThird Party Advisory
https://www.debian.org/security/2015/dsa-3202Third Party Advisory
http://www.mono-project.com/news/2015/03/07/mono-tls-vulnerability/Vendor Advisory
http://www.openwall.com/lists/oss-security/2015/03/17/9Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/73253Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-2547-1Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1202869Issue Tracking, Third Party Advisory
https://github.com/mono/mono/commit/1509226c41d74194c146deb173e752b8d3cdeec4Third Party Advisory
https://mitls.org/pages/attacks/SMACK#skipThird Party Advisory
https://www.debian.org/security/2015/dsa-3202Third Party Advisory

Timeline

Published: Jan 8, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-2318?

How severe is CVE-2015-2318?

Severity scoring for CVE-2015-2318 is pending analysis. The EPSS model estimates a 1.97% probability of exploitation in the next 30 days.

How do I fix CVE-2015-2318?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-2318?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST