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Vulnerability Details : CVE-2004-0427

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.
Publish Date : 2004-07-07 Last Update Date : 2016-10-17
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of Service
CWE ID CWE id is not defined for this vulnerability

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat moderate 2004-04-08
If you are a vendor and you have additional data which can be automatically imported into our database, please contact admin @

- Related OVAL Definitions

Title Definition Id Class Family
Denial of Service Vulnerability in Linux Kernel do_fork Function via CLONE_VM oval:org.mitre.oval:def:2819 unix
RHSA-2004:255: kernel security update (Important) oval:com.redhat.rhsa:def:20040255 unix
RHSA-2004:255: kernel security update (Important) oval:com.redhat.rhsa:def:2004255 unix
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 coun... oval:org.mitre.oval:def:10297 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2004-0427

# Product Type Vendor Product Version Update Edition Language
1 OS Linux Linux Kernel 2.4.0 Version Details Vulnerabilities
2 OS Linux Linux Kernel 2.6.0 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Linux Linux Kernel 2

- References For CVE-2004-0427
REDHAT RHSA-2004:260
XF linux-dofork-memory-leak(16002)
BID 10221 Linux kernel do_fork() Memory Leakage Vulnerability Release Date:2007-01-17
TURBO TLSA-2004-14
REDHAT RHSA-2004:327
SUSE SuSE-SA:2004:010
REDHAT RHSA-2004:255
CIAC O-164
GENTOO GLSA-200407-02
MLIST [linux-kernel] 20040408 [PATCH]: 2.4/2.6 do_fork() error path memory leak
SGI 20040505-01-U
SGI 20040504-01-U

- Metasploit Modules Related To CVE-2004-0427

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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