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CVE-2004-0427

2.1 · LOW

The do_fork function in Linux 2.4.x before 2.4.26, and 2.6.x before 2.6.6, does not properly decrement the mm_count counter when an error occurs after the mm_struct for a child process has been act…

Published Jul 7, 2004linuxCWE-401EPSS 0.47%

Overview

CVE-2004-0427 is a low-severity vulnerability affecting linux linux_kernel. It was published on July 7, 2004 and has a CVSS 2.0 base score of 2.1 (LOW).

This vulnerability has a CVSS 2.0 base score of 2.1, rated LOW. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

The do_fork function in Linux 2.4.x before 2.4.26, and 2.6.x before 2.6.6, does not properly decrement the mm_count counter when an error occurs after the mm_struct for a child process has been activated, which triggers a memory leak that allows local users to cause a denial of service (memory exhaustion) via the clone (CLONE_VM) system call.

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
linuxlinux_kernel>= 2.4.0, < 2.4.26Affected

References

Refftp://patches.sgi.com/support/free/security/advisories/20040504-01-U.ascRefftp://patches.sgi.com/support/free/security/advisories/20040505-01-U.ascRefdistro.conectiva.com.br/atualizacoes/?id=a&anuncio=000846Reffedoranews.org/updates/FEDORA-2004-111.shtmlReflinux.bkbits.net:8080/linux-2.4/cset%40407bf20eDeeejm8t36_tpvSE-8EFHAReflinux.bkbits.net:8080/linux-2.6/cset%40407b1217x4jtqEkpFW2g_-RcF0726ARefmarc.info/?l=linux-kernel&m=108139073506983&w=2Refsecunia.com/advisories/11429Refsecunia.com/advisories/11464Refsecunia.com/advisories/11486

How CyberStrike helps

Frequently asked questions

What is CVE-2004-0427?

CVE-2004-0427 is a low-severity vulnerability affecting linux linux_kernel. It was published on July 7, 2004 and has a CVSS 2.0 base score of 2.1 (LOW).

How severe is CVE-2004-0427?

This vulnerability has a CVSS 2.0 base score of 2.1, rated LOW. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2004-0427?

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2004-0427?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2004-0427 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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