Information disclosure in OpenSSL
CVE-2015-3197
ssl/s2_srvr.c in OpenSSL 1.0.1 before 1.0.1r and 1.0.2 before 1.0.2f does not prevent use of disabled ciphers, which makes it easier for man-in-the-middle attackers to defeat cryptographic protection mechanisms by performing computations on SSLv2 traffic, related to the get_client_master_key and get_client_hello functions.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.107 (95.8th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 95.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.107 · newest: 0.107 · change: 0.000
Affected products
- OpenSSL — versions 1.0.1, 1.0.1a, 1.0.1b
- Oracle Exalogic Infrastructure — versions 1.0, 2.0
- Oracle Oss Support Tools — versions 8.11.16.3.8
- Oracle Peoplesoft Enterprise Peopletools — versions 8.53, 8.54, 8.55
- Oracle Tuxedo — versions 12.1.1.0
- Oracle Vm Virtualbox — versions 5.0.16
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
- lists.fedoraproject.org/pipermail/package-announce/2016-January/176373.html (vendor-advisory)
- www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
- lists.opensuse.org/opensuse-security-announce/2016-03/msg00010.html (vendor-advisory)
- www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
- lists.opensuse.org/opensuse-security-announce/2016-05/msg00015.html (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2016-03/msg00003.html (vendor-advisory)
- www.securitytracker.com/id/1034849 (vdb-entry)
- lists.opensuse.org/opensuse-security-announce/2016-03/msg00011.html (vendor-advisory)
- www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
Frequently asked questions
- What is CVE-2015-3197?
- CVE-2015-3197 is a medium-severity vulnerability in OpenSSL, classified under Information Disclosure. CVSS score: 5.9/10. Published 2016-02-15.
- How severe is CVE-2015-3197?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2015-3197 known to be exploited?
- 12 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.