Strix
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CVE-2015-0204

UnknownEPSS 98.69%

Last modified

CVE-2015-0204 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 98.69% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability
98.69%

99.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
OpensslOpenssl<= 0.9.8zc
OpensslOpenssl1.0.0a
OpensslOpenssl1.0.0b
OpensslOpenssl1.0.0c
OpensslOpenssl1.0.0d
OpensslOpenssl1.0.0e
OpensslOpenssl1.0.0f
OpensslOpenssl1.0.0g
OpensslOpenssl1.0.0h
OpensslOpenssl1.0.0i
OpensslOpenssl1.0.0j
OpensslOpenssl1.0.0k
OpensslOpenssl1.0.0l
OpensslOpenssl1.0.0m
OpensslOpenssl1.0.0n
OpensslOpenssl1.0.0o
OpensslOpenssl1.0.1a
OpensslOpenssl1.0.1b
OpensslOpenssl1.0.1c
OpensslOpenssl1.0.1d
OpensslOpenssl1.0.1e
OpensslOpenssl1.0.1f
OpensslOpenssl1.0.1g
OpensslOpenssl1.0.1h
OpensslOpenssl1.0.1i
OpensslOpenssl1.0.1j

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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.
How severe is CVE-2015-0204?
Severity scoring for CVE-2015-0204 is pending analysis. The EPSS model estimates a 98.69% probability of exploitation in the next 30 days.
How do I fix CVE-2015-0204?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-0204?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST