CVE-2008-5713

Linux Kernel < 2.6.25 - Denial of Service via Network Traffic Flood

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2008-5713. PoCs published by Herbert Xu.

AI-analyzed exploit summary This exploit triggers a local denial-of-service (DoS) in Linux kernels prior to 2.6.25 by spawning multiple netperf processes to cause a soft lockup. It forks multiple instances of netperf with UDP_STREAM tests, overwhelming system resources.

Description

The __qdisc_run function in net/sched/sch_generic.c in the Linux kernel before 2.6.25 on SMP machines allows local users to cause a denial of service (soft lockup) by sending a large amount of network traffic, as demonstrated by multiple simultaneous invocations of the Netperf benchmark application in UDP_STREAM mode.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Herbert Xu · cdoslinux
https://www.exploit-db.com/exploits/32682

This exploit triggers a local denial-of-service (DoS) in Linux kernels prior to 2.6.25 by spawning multiple netperf processes to cause a soft lockup. It forks multiple instances of netperf with UDP_STREAM tests, overwhelming system resources.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Linux kernel < 2.6.25
Auth required
Prerequisites: netperf installed on the system · local access to the target machine
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (12)

Core 12
Core References
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/33706
Mailing List mailing-list x_refsource_mlist
http://openwall.com/lists/oss-security/2008/12/23/1
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2009/dsa-1794
Issue Tracking x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=477744
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/35011
Third Party Advisory, VDB Entry vdb-entry signature x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9385
Various Sources x_refsource_confirm
http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.25
Vendor Advisory vendor-advisory x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2009-0264.html
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/33858
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/32985
Vendor Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/714-1/

Scores

EPSS 0.0074
EPSS Percentile 49.8%

Details

CWE
CWE-399
Status published
Products (50)
linux/linux_kernel 2.6
linux/linux_kernel 2.6.0
linux/linux_kernel 2.6.1
linux/linux_kernel 2.6.2
linux/linux_kernel 2.6.10
linux/linux_kernel 2.6.11
linux/linux_kernel 2.6.11.1
linux/linux_kernel 2.6.11.2
linux/linux_kernel 2.6.11.3
linux/linux_kernel 2.6.11.4
... and 40 more
Published Dec 24, 2008
Tracked Since Feb 18, 2026