CVE-2016-9555

HIGH

Description

The sctp_sf_ootb function in net/sctp/sm_statefuns.c in the Linux kernel before 4.8.8 lacks chunk-length checking for the first chunk, which allows remote attackers to cause a denial of service (out-of-bounds slab access) or possibly have unspecified other impact via crafted SCTP data.

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=bf911e985d6bbaa328c20c3e05f4eb03de11fdd6

http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00044.html

http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00054.html

http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00055.html

http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00056.html

http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00067.html

http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00070.html

http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00073.html

http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00076.html

http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00077.html

http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00087.html

http://rhn.redhat.com/errata/RHSA-2017-0086.html

http://rhn.redhat.com/errata/RHSA-2017-0091.html

http://rhn.redhat.com/errata/RHSA-2017-0113.html

http://rhn.redhat.com/errata/RHSA-2017-0307.html

http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.8

http://www.openwall.com/lists/oss-security/2016/11/22/18

http://www.securityfocus.com/bid/94479

http://www.securitytracker.com/id/1037339

https://bto.bluecoat.com/security-advisory/sa134

https://bugzilla.redhat.com/show_bug.cgi?id=1397930

https://github.com/torvalds/linux/commit/bf911e985d6bbaa328c20c3e05f4eb03de11fdd6

https://groups.google.com/forum/#!topic/syzkaller/pAUcHsUJbjk

Details

Source: MITRE

Published: 2016-11-28

Updated: 2018-08-13

Type: CWE-125

Risk Information

CVSS v2.0

Base Score: 10

Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C

Impact Score: 10

Exploitability Score: 10

Severity: HIGH

CVSS v3.0

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 3.9

Severity: CRITICAL