CVE-2008-4113

Linux Kernel < 2.6.26.4 - Sensitive Information Exposure via SCTP_HMAC_IDENT IOCTL

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2008-4113. PoCs published by Jon Oberheide.

AI-analyzed exploit summary This exploit leverages a kernel memory disclosure vulnerability in the Linux Kernel's SCTP implementation (CVE-2008-4113) by using an untrusted length value in the SCTP_HMAC_IDENT IOCTL request to dump kernel memory to a file.

Description

The sctp_getsockopt_hmac_ident function in net/sctp/socket.c in the Stream Control Transmission Protocol (sctp) implementation in the Linux kernel before 2.6.26.4, when the SCTP-AUTH extension is enabled, relies on an untrusted length value to limit copying of data from kernel memory, which allows local users to obtain sensitive information via a crafted SCTP_HMAC_IDENT IOCTL request involving the sctp_getsockopt function.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Jon Oberheide · clocallinux
https://www.exploit-db.com/exploits/7618

This exploit leverages a kernel memory disclosure vulnerability in the Linux Kernel's SCTP implementation (CVE-2008-4113) by using an untrusted length value in the SCTP_HMAC_IDENT IOCTL request to dump kernel memory to a file.

Classification
Working Poc 100%
Attack Type
Info Leak
Complexity
Trivial
Reliability
Reliable
Target: Linux Kernel < 2.6.26.4 with SCTP-AUTH enabled
No auth needed
Prerequisites: SCTP-AUTH must be enabled (net.sctp.auth_enable = 1)
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (17)

Core 17
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id?1021000
Various Sources x_refsource_misc
http://www.trapkit.de/advisories/TKADV2008-007.txt
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/32190
Third Party Advisory third-party-advisory x_refsource_sreason
http://securityreason.com/securityalert/4266
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2008/dsa-1655
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/32393
Exploit, Third Party Advisory exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/7618
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/31121
Vendor Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/usn-659-1
Vendor Advisory vendor-advisory x_refsource_redhat
http://www.redhat.com/support/errata/RHSA-2008-0857.html
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/45188
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/496256/100/0/threaded
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/32315
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2008/09/26/6

Scores

EPSS 0.0083
EPSS Percentile 52.7%

Details

CWE
CWE-200
Status published
Products (43)
linux/linux_kernel 2.2.27
linux/linux_kernel 2.4.36
linux/linux_kernel 2.4.36.1
linux/linux_kernel 2.4.36.2
linux/linux_kernel 2.4.36.3
linux/linux_kernel 2.4.36.4
linux/linux_kernel 2.4.36.5
linux/linux_kernel 2.4.36.6
linux/linux_kernel 2.6
linux/linux_kernel 2.6.18 (8 CPE variants)
... and 33 more
Published Sep 16, 2008
Tracked Since Feb 18, 2026