CVE-2015-2318

HighCVSS 8.1/10Last modified Jun 17, 2026

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

CVSS 3.0 8.1/10CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-295

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

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
NVD status: Modified

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