CVE-2004-1016

Linux Kernel 2.4.x-2.4.28 and 2.6.x-2.6.9 - Denial of Service via scm_send Deadlock

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2004-1016. PoCs published by Paul Starzetz.

AI-analyzed exploit summary This exploit triggers a denial-of-service (DoS) condition in Linux kernel versions 2.4 and 2.6 by manipulating the `__scm_send` function via crafted `cmsghdr` structures, causing a system hang. The PoC uses a socket pair and malformed control messages to exploit the vulnerability.

Description

The scm_send function in the scm layer for Linux kernel 2.4.x up to 2.4.28, and 2.6.x up to 2.6.9, allows local users to cause a denial of service (system hang) via crafted auxiliary messages that are passed to the sendmsg function, which causes a deadlock condition.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Paul Starzetz · cdoslinux
https://www.exploit-db.com/exploits/685

This exploit triggers a denial-of-service (DoS) condition in Linux kernel versions 2.4 and 2.6 by manipulating the `__scm_send` function via crafted `cmsghdr` structures, causing a system hang. The PoC uses a socket pair and malformed control messages to exploit the vulnerability.

Classification
Working Poc 100%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Linux kernel 2.4 & 2.6
No auth needed
Prerequisites: Local access to the target system
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (19)

Core 19
Core References
Various Sources x_refsource_misc
http://isec.pl/vulnerabilities/isec-0019-scm.txt
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/20163
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/18483
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2006/dsa-1082
Vendor Advisory vendor-advisory x_refsource_mandrake
http://www.mandriva.com/security/advisories?name=MDKSA-2005:022
Vendor Advisory vendor-advisory x_refsource_redhat
http://www.redhat.com/support/errata/RHSA-2005-017.html
Issue Tracking vendor-advisory x_refsource_fedora
https://bugzilla.fedora.us/show_bug.cgi?id=2336
Vendor Advisory vendor-advisory x_refsource_ubuntu
https://www.ubuntu.com/usn/usn-38-1/
Vendor Advisory vendor-advisory x_refsource_suse
http://www.novell.com/linux/security/advisories/2004_44_kernel.html
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2006/dsa-1070
Vendor Advisory vendor-advisory x_refsource_redhat
http://www.redhat.com/support/errata/RHSA-2004-689.html
Vendor Advisory vendor-advisory x_refsource_redhat
http://www.redhat.com/support/errata/RHSA-2005-016.html
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/20162
Exploit, Patch, Vendor Advisory vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/11921
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2006/dsa-1067
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2006/dsa-1069
Third Party Advisory, VDB Entry vdb-entry signature x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11816
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/20202
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/20338

Scores

EPSS 0.0100
EPSS Percentile 58.3%

Details

Status published
Products (22)
linux/linux_kernel 2.4.0 (13 CPE variants)
linux/linux_kernel 2.4.1
linux/linux_kernel 2.4.2
linux/linux_kernel 2.4.3
linux/linux_kernel 2.4.4
linux/linux_kernel 2.4.5
linux/linux_kernel 2.4.6
linux/linux_kernel 2.4.7
linux/linux_kernel 2.4.8
linux/linux_kernel 2.4.9
... and 12 more
Published Jan 10, 2005
Tracked Since Feb 18, 2026