Vulnerability CVE-2016-5696

Vulnerability CVE-2016-5696

Published: 2016-08-06

Description:

net/ipv4/tcp_input.c in the Linux kernel before 4.7 does not properly determine the rate of challenge ACK segments, which makes it easier for remote attackers to hijack TCP sessions via a blind in-window attack.

Type:

CWE-200

(Information Exposure)

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

CVSS Base Score	Impact Subscore	Exploitability Subscore
5.8/10	4.9/10	8.6/10

Exploit range	Attack complexity	Authentication
Remote	Medium	No required
Confidentiality impact	Integrity impact	Availability impact
None	Partial	Partial

Affected software
Oracle -> Vm server
Linux -> Linux kernel
Google -> Android

References:

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=75ff39ccc1bd5d3c455b6822ab09e533c551f758

http://rhn.redhat.com/errata/RHSA-2016-1631.html

http://rhn.redhat.com/errata/RHSA-2016-1632.html

http://rhn.redhat.com/errata/RHSA-2016-1633.html

http://rhn.redhat.com/errata/RHSA-2016-1657.html

http://rhn.redhat.com/errata/RHSA-2016-1664.html

http://rhn.redhat.com/errata/RHSA-2016-1814.html

http://rhn.redhat.com/errata/RHSA-2016-1815.html

http://rhn.redhat.com/errata/RHSA-2016-1939.html

http://securityadvisories.paloaltonetworks.com/Home/Detail/85

http://source.android.com/security/bulletin/2016-10-01.html

http://www.openwall.com/lists/oss-security/2016/07/12/2

http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html

http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html

http://www.prnewswire.com/news-releases/mitnick-attack-reappears-at-geekpwn-macau-contest-300270779.html

http://www.securityfocus.com/bid/91704

http://www.securitytracker.com/id/1036625

http://www.ubuntu.com/usn/USN-3070-1

http://www.ubuntu.com/usn/USN-3070-2

http://www.ubuntu.com/usn/USN-3070-3

http://www.ubuntu.com/usn/USN-3070-4

http://www.ubuntu.com/usn/USN-3071-1

http://www.ubuntu.com/usn/USN-3071-2

http://www.ubuntu.com/usn/USN-3072-1

http://www.ubuntu.com/usn/USN-3072-2

https://bto.bluecoat.com/security-advisory/sa131

https://bugzilla.redhat.com/show_bug.cgi?id=1354708

https://github.com/Gnoxter/mountain_goat

https://github.com/torvalds/linux/commit/75ff39ccc1bd5d3c455b6822ab09e533c551f758

https://kc.mcafee.com/corporate/index?page=content&id=SB10167

https://www.usenix.org/system/files/conference/usenixsecurity16/sec16_paper_cao.pdf

Vulnerability CVE-2016-5696

net/ipv4/tcp_input.c in the Linux kernel before 4.7 does not properly determine the rate of challenge ACK segments, which makes it easier for remote attackers to hijack TCP sessions via a blind in-window attack.

CWE-200

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

5.8/10

4.9/10

8.6/10

Remote

Medium

No required

None

Partial

Partial

Affected software

References: