CVE-2008-4113

Severity: medium (CVSS 4.7 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2008-09-16 · updated 2026-06-16
Weakness: CWE-200

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.

Affected products

Linux kernel: through 2.6.25.14; 2.2.27, 2.4.36, 2.4.36.1, 2.4.36.2, 2.4.36.3, 2.4.36.4 (+79)

References

http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.26.y.git%3Ba=commit%3Bh=d97240552cd98c4b07322f30f66fd9c3ba4171de
http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00010.html
http://secunia.com/advisories/32190
http://secunia.com/advisories/32315
http://secunia.com/advisories/32393
http://securityreason.com/securityalert/4266
http://www.debian.org/security/2008/dsa-1655
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.26.4
http://www.openwall.com/lists/oss-security/2008/09/26/6
http://www.redhat.com/support/errata/RHSA-2008-0857.html
http://www.securityfocus.com/archive/1/496256/100/0/threaded
http://www.securityfocus.com/bid/31121

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