CVE-2010-3849

EXPLOITED

Linux Kernel < 2.6.36.2 - Denial of Service via NULL Pointer Dereference in econet_sendmsg

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2010-3849 has been observed exploited in the wild (reported by VulnCheck KEV). EIP tracks 1 public exploit.

AI-analyzed exploit summary This exploit leverages three vulnerabilities (CVE-2010-4258, CVE-2010-3849, CVE-2010-3850) to achieve local privilege escalation on Linux kernels <= 2.6.37. It uses the Econet protocol to trigger a NULL pointer dereference under KERNEL_DS, allowing arbitrary kernel memory writes.

Description

The econet_sendmsg function in net/econet/af_econet.c in the Linux kernel before 2.6.36.2, when an econet address is configured, allows local users to cause a denial of service (NULL pointer dereference and OOPS) via a sendmsg call that specifies a NULL value for the remote address field.

Exploits (1)

exploitdb WORKING POC
clocallinux
https://www.exploit-db.com/exploits/15704

This exploit leverages three vulnerabilities (CVE-2010-4258, CVE-2010-3849, CVE-2010-3850) to achieve local privilege escalation on Linux kernels <= 2.6.37. It uses the Econet protocol to trigger a NULL pointer dereference under KERNEL_DS, allowing arbitrary kernel memory writes.

Classification
Working Poc 100%
Attack Type
Lpe
Complexity
Complex
Reliability
Reliable
Target: Linux Kernel <= 2.6.37
No auth needed
Prerequisites: Unpatched Linux kernel <= 2.6.37 · Econet protocol support
devstral-2 · analyzed Feb 19, 2026 Full analysis →

References (16)

Core 16
Core References
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/43056
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=644156
Broken Link mailing-list x_refsource_fulldisc
http://archives.neohapsis.com/archives/fulldisclosure/2010-12/0086.html
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html
Mailing List, Patch, Third Party Advisory mailing-list x_refsource_mlist
http://openwall.com/lists/oss-security/2010/11/30/1
Third Party Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2011/0298
Third Party Advisory vendor-advisory x_refsource_mandriva
http://www.mandriva.com/security/advisories?name=MDVSA-2010:257
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00007.html
Third Party Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2011/0375
Third Party Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-1023-1
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00002.html
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/43291
Third Party Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2011/0213
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2010/dsa-2126

Scores

EPSS 0.0018
EPSS Percentile 39.6%

Details

VulnCheck KEV 2026-02-09
CWE
CWE-476
Status published
Products (12)
canonical/ubuntu_linux 6.06
canonical/ubuntu_linux 8.04
canonical/ubuntu_linux 9.10
canonical/ubuntu_linux 10.04
canonical/ubuntu_linux 10.10
debian/debian_linux 5.0
linux/linux_kernel < 2.6.36.2
suse/linux_enterprise_desktop 10 sp3
suse/linux_enterprise_real_time_extension 11 sp1
suse/linux_enterprise_server 9
... and 2 more
Published Dec 30, 2010
Tracked Since Feb 18, 2026