Vulnerability in OpenSSL
CVE-2015-0204
The ssl3_get_key_exchange function in s3_clnt.c in OpenSSL before 0.9.8zd, 1.0.0 before 1.0.0p, and 1.0.1 before 1.0.1k allows remote SSL servers to conduct RSA-to-EXPORT_RSA downgrade attacks and facilitate brute-force decryption by offering a weak ephemeral RSA key in a noncompliant role, related to the "FREAK" issue. NOTE: the scope of this CVE is only client code based on OpenSSL, not EXPORT_RSA issues associated with servers or other TLS implementations.
Vulnerability class: POODLE (CVE-2014-3566)
Published · last modified .
CVSS v2 metric
CVSS v2 base score 4.3 (Medium). Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.987 (99.9th percentile), scored .
Very high probability of exploitation in the next 30 days — among the top 0.1% most-likely-to-be-exploited CVEs. 100th percentile — 99.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.987 · newest: 0.987 · change: 0.000
Affected products
- OpenSSL — versions 1.0.0a, 1.0.0b, 1.0.0c
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.opensuse.org/opensuse-security-announce/2015-12/msg00003.html (vendor-advisory)
- kc.mcafee.com/corporate/index
- marc.info/ (vendor-advisory)
- www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
- lists.opensuse.org/opensuse-security-announce/2015-01/msg00021.html (vendor-advisory)
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150310… (vendor-advisory)
- marc.info/ (vendor-advisory)
- www.securityfocus.com/bid/71936 (vdb-entry)
- lists.opensuse.org/opensuse-security-announce/2015-12/msg00004.html (vendor-advisory)
- www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
Frequently asked questions
- What is CVE-2015-0204?
- CVE-2015-0204 is a vulnerability in OpenSSL, classified under Cryptographic Issues. Published 2015-01-09.
- Is CVE-2015-0204 known to be exploited?
- 70 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.