Vulnerability in Mono-Project Mono
CVE-2015-2318
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.
Vulnerability class: Improper Certificate Validation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.020 (79.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 79.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000
Affected products
- Mono-Project Mono
- Debian Linux — versions 6.0
Weakness classification (CWE)
References
- www.ubuntu.com/usn/USN-2547-1 (vendor-advisory, Third Party Advisory)
- mitls.org/pages/attacks/SMACK (Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- www.securityfocus.com/bid/73253 (VDB Entry, Third Party Advisory, vdb-entry)
- www.openwall.com/lists/oss-security/2015/03/17/9 (mailing-list, Mailing List, Third Party Advisory)
- www.mono-project.com/news/2015/03/07/mono-tls-vulnerability/ (Vendor Advisory)
- www.debian.org/security/2015/dsa-3202 (vendor-advisory, Third Party Advisory)
- github.com/mono/mono/commit/1509226c41d74194c146deb173e752b8d3cdeec4 (Third Party Advisory)
Frequently asked questions
- What is CVE-2015-2318?
- CVE-2015-2318 is a high-severity vulnerability in Mono-Project Mono, classified under Improper Certificate Validation. CVSS score: 8.1/10. Published 2018-01-08.
- How severe is CVE-2015-2318?
- High severity. CVSS v3 base score is 8.1 out of 10.