Vulnerability CVE-2008-4113
Published: 2008-09-16   Modified: 2012-02-12

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.

See advisories in our WLB2 database:
Topic
Author
Date
Low
Linux Kernel SCTP-AUTH API Information Disclosure Vulnerability and NULL Pointer Dereferences
Tobias Klein
18.09.2008

Type:

CWE-200

 (Information Exposure)

CVSS2 => (AV:L/AC:M/Au:N/C:C/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.7/10
6.9/10
3.4/10
Exploit range
Attack complexity
Authentication
Local
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
None
None
Affected software
Linux -> Kernel 
Linux -> Linux kernel 

 References:
http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.26.y.git;a=commit;h=d97240552cd98c4b07322f30f66fd9c3ba4171de
http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00010.html
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
http://www.securitytracker.com/id?1021000
http://www.trapkit.de/advisories/TKADV2008-007.txt
http://www.ubuntu.com/usn/usn-659-1
https://exchange.xforce.ibmcloud.com/vulnerabilities/45188
https://www.exploit-db.com/exploits/7618
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