What’s Vulnerable › Vulnerabilities

CVE-2015-2320

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-01-08 · updated 2026-06-17
• Weakness: CWE-295

Description

The TLS stack in Mono before 3.12.1 allows remote attackers to have unspecified impact via vectors related to client-side SSLv2 fallback.

Affected products

• Debian Linux: 7.0
• Mono-Project Mono: before 3.12.1 — fixed in 3.12.1

How to fix

Upgrade to a fixed version: Mono-Project Mono 3.12.1. Check the vendor advisory for mitigations.

References

• http://www.mono-project.com/news/2015/03/07/mono-tls-vulnerability/
• http://www.openwall.com/lists/oss-security/2015/03/17/9
• http://www.securityfocus.com/bid/73256
• http://www.ubuntu.com/usn/USN-2547-1
• https://bugzilla.redhat.com/show_bug.cgi?id=1202869
• https://github.com/mono/mono/commit/b371da6b2d68b4cdd0f21d6342af6c42794f998b
• https://www.debian.org/security/2015/dsa-3202
• http://www.mono-project.com/news/2015/03/07/mono-tls-vulnerability/
• http://www.openwall.com/lists/oss-security/2015/03/17/9
• http://www.securityfocus.com/bid/73256
• http://www.ubuntu.com/usn/USN-2547-1
• https://bugzilla.redhat.com/show_bug.cgi?id=1202869

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