CVE-2016-9555 : The sctp_sf_ootb function in net/sctp/sm_statefuns.c in the Linux kernel before

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.

Published 2016-11-28 03:59:17

Updated 2025-04-12 10:46:41

Source MITRE

View at NVD, CVE.org

Vulnerability category: Denial of service

Products affected by CVE-2016-9555

Linux » Linux Kernel
Versions from including (>=) 3.11 and before (<) 3.12.68
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel
Versions from including (>=) 3.13 and before (<) 3.16.40
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel
Versions from including (>=) 3.3 and before (<) 3.10.105
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel
Versions from including (>=) 4.5.0 and before (<) 4.8.8
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel
Versions from including (>=) 3.17 and before (<) 3.18.49
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel
Versions from including (>=) 3.2 and before (<) 3.2.85
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel
Versions from including (>=) 3.19 and before (<) 4.4.32
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions

Threat overview for CVE-2016-9555

Top countries where our scanners detected CVE-2016-9555

Top open port discovered on systems with this issue 49152

IPs affected by CVE-2016-9555 19,344

Threat actors abusing to this issue? Yes

Find out if you^* are affected by CVE-2016-9555!

^*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2016-9555

EPSS FAQ

32.28%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 96 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2016-9555

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
10.0	HIGH	AV:N/AC:L/Au:N/C:C/I:C/A:C	10.0	10.0	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Complete Integrity Impact: Complete Availability Impact: Complete
9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2016-9555

CWE-125 Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2016-9555

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

[security-announce] SUSE-SU-2016:3197-1: important: Security update for
Mailing List;Third Party Advisory

CVEs referencing this url
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00087.html

[security-announce] SUSE-SU-2016:3247-1: important: Security update for
Mailing List;Third Party Advisory

CVEs referencing this url
https://bto.bluecoat.com/security-advisory/sa134

SA134 : Linux Kernel Vulnerabilities Oct/Nov 2016
Third Party Advisory

CVEs referencing this url
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00044.html

[security-announce] SUSE-SU-2016:3096-1: important: Security update for
Mailing List;Third Party Advisory

CVEs referencing this url
https://groups.google.com/forum/#%21topic/syzkaller/pAUcHsUJbjk

Sign in - Google Accounts
http://www.openwall.com/lists/oss-security/2016/11/22/18

oss-security - CVE Request: Linux: net/sctp: slab-out-of-bounds in sctp_sf_ootb
Mailing List;Third Party Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.8

Release Notes;Vendor Advisory
http://www.securityfocus.com/bid/94479

Linux Kernel Out-Of-Bounds Read Information Disclosure Vulnerability
Third Party Advisory;VDB Entry
https://github.com/torvalds/linux/commit/bf911e985d6bbaa328c20c3e05f4eb03de11fdd6

sctp: validate chunk len before actually using it · torvalds/linux@bf911e9 · GitHub
Issue Tracking;Patch;Third Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=bf911e985d6bbaa328c20c3e05f4eb03de11fdd6

kernel/git/torvalds/linux.git - Linux kernel source tree
Issue Tracking;Patch;Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00055.html

[security-announce] SUSE-SU-2016:3116-1: important: Security update for
Mailing List;Third Party Advisory

CVEs referencing this url
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00056.html

[security-announce] SUSE-SU-2016:3117-1: important: Security update for
Mailing List;Third Party Advisory

CVEs referencing this url
http://rhn.redhat.com/errata/RHSA-2017-0307.html

RHSA-2017:0307 - Security Advisory - Red Hat Customer Portal
Third Party Advisory

CVEs referencing this url
https://bugzilla.redhat.com/show_bug.cgi?id=1397930

1397930 – (CVE-2016-9555) CVE-2016-9555 kernel: Slab out-of-bounds access in sctp_sf_ootb()
Issue Tracking;Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00070.html

[security-announce] SUSE-SU-2016:3183-1: important: Security update for
Mailing List;Third Party Advisory

CVEs referencing this url
http://rhn.redhat.com/errata/RHSA-2017-0091.html

RHSA-2017:0091 - Security Advisory - Red Hat Customer Portal
Third Party Advisory

CVEs referencing this url
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00076.html

[security-announce] SUSE-SU-2016:3205-1: important: Security update for
Mailing List;Third Party Advisory

CVEs referencing this url
https://groups.google.com/forum/#!topic/syzkaller/pAUcHsUJbjk

Google Groepen
Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00054.html

[security-announce] SUSE-SU-2016:3113-1: important: Security update for
Mailing List;Third Party Advisory

CVEs referencing this url
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00077.html

[security-announce] SUSE-SU-2016:3206-1: important: Security update for
Mailing List;Third Party Advisory

CVEs referencing this url
http://www.securitytracker.com/id/1037339

Linux Kernel Out-of-Bounds Memory Access Error in SCTP Lets Remote Users Deny Service or Obtain Potentially Sensitive Information - SecurityTracker
Third Party Advisory;VDB Entry
http://rhn.redhat.com/errata/RHSA-2017-0113.html

RHSA-2017:0113 - Security Advisory - Red Hat Customer Portal
Third Party Advisory

CVEs referencing this url
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00067.html

[security-announce] SUSE-SU-2016:3169-1: important: Security update for
Mailing List;Third Party Advisory

CVEs referencing this url
http://rhn.redhat.com/errata/RHSA-2017-0086.html

RHSA-2017:0086 - Security Advisory - Red Hat Customer Portal
Third Party Advisory

CVEs referencing this url