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
02 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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 1.97% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 80.0% of scored records. A rank, not a probability.
- NVD base score
- 8.1 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2018-01-08 19:00Z8 YR AGO
- Last updated
- 2024-08-06 05:10Z2 YR AGO
- Reserved
- 2015-03-17
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-295Improper Certificate ValidationBase
- Data version
- 5.1
- Document digest
- 816b322d2dfb16597b65a3d2ceeab57dd704d3ea924245c1f1804bb3bc795abd
05 Affected products
06 References
- www.ubuntu.comUSN-2547-1http://www.ubuntu.com/usn/USN-2547-1
- mitls.orghttps://mitls.org/pages/attacks/SMACK#skip
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1202869
- www.securityfocus.com73253http://www.securityfocus.com/bid/73253
- www.openwall.com[oss-security] 20150317 Re: Mono TLS vulnerabilitieshttp://www.openwall.com/lists/oss-security/2015/03/17/9
- www.mono-project.comhttp://www.mono-project.com/news/2015/03/07/mono-tls-vulnerability/
- www.debian.orgDSA-3202https://www.debian.org/security/2015/dsa-3202
- github.comhttps://github.com/mono/mono/commit/1509226c41d74194c146deb173e752b8d3cdeec4
07 Fixed in
Debian 12
- mono Fixed in 3.2.8+dfsg-10
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- mono Fixed in 3.2.8+dfsg-10
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- mono Fixed in 3.2.8+dfsg-10
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- mono Fixed in 3.2.8+dfsg-4ubuntu1.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.