National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2016-5696 Detail

Current 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.

Source:  MITRE      Last Modified:  10/31/2016      View Analysis Description

Quick Info

CVE Dictionary Entry:
CVE-2016-5696
Original release date:
08/06/2016
Last revised:
01/04/2018
Source:
US-CERT/NIST

Impact

CVSS Severity (version 3.0):
CVSS v3 Base Score:
4.8 Medium
Vector:
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L (legend)
Impact Score:
2.5
Exploitability Score:
2.2
CVSS Version 3 Metrics:
Attack Vector (AV):
Network
Attack Complexity (AC):
High
Privileges Required (PR):
None
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
None
Integrity (I):
Low
Availability (A):
Low
CVSS Severity (version 2.0):
CVSS v2 Base Score:
5.8 MEDIUM
Vector:
(AV:N/AC:M/Au:N/C:N/I:P/A:P) (legend)
Impact Subscore:
4.9
Exploitability Subscore:
8.6
CVSS Version 2 Metrics:
Access Vector:
Network exploitable
Access Complexity:
Medium
Authentication:
Not required to exploit
Impact Type:
Allows unauthorized modification; Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=75ff39ccc1bd5d3c455b6822ab09e533c551f758 Issue Tracking; Patch External Source CONFIRM http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=75ff39ccc1bd5d3c455b6822ab09e533c551f758
http://rhn.redhat.com/errata/RHSA-2016-1631.html External Source REDHAT RHSA-2016:1631
http://rhn.redhat.com/errata/RHSA-2016-1632.html External Source REDHAT RHSA-2016:1632
http://rhn.redhat.com/errata/RHSA-2016-1633.html External Source REDHAT RHSA-2016:1633
http://rhn.redhat.com/errata/RHSA-2016-1657.html External Source REDHAT RHSA-2016:1657
http://rhn.redhat.com/errata/RHSA-2016-1664.html External Source REDHAT RHSA-2016:1664
http://rhn.redhat.com/errata/RHSA-2016-1814.html External Source REDHAT RHSA-2016:1814
http://rhn.redhat.com/errata/RHSA-2016-1815.html External Source REDHAT RHSA-2016:1815
http://rhn.redhat.com/errata/RHSA-2016-1939.html External Source REDHAT RHSA-2016:1939
http://securityadvisories.paloaltonetworks.com/Home/Detail/85 External Source CONFIRM http://securityadvisories.paloaltonetworks.com/Home/Detail/85
http://source.android.com/security/bulletin/2016-10-01.html Third Party Advisory External Source CONFIRM http://source.android.com/security/bulletin/2016-10-01.html
http://www.openwall.com/lists/oss-security/2016/07/12/2 Mailing List; Third Party Advisory External Source MLIST [oss-security] 20160712 Re: CVE-2016-5389: linux kernel - challange ack information leak.
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html Third Party Advisory External Source CONFIRM http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html Vendor Advisory External Source CONFIRM 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 Technical Description External Source MISC http://www.prnewswire.com/news-releases/mitnick-attack-reappears-at-geekpwn-macau-contest-300270779.html
http://www.securityfocus.com/bid/91704 External Source BID 91704
http://www.securitytracker.com/id/1036625 External Source SECTRACK 1036625
http://www.ubuntu.com/usn/USN-3070-1 External Source UBUNTU USN-3070-1
http://www.ubuntu.com/usn/USN-3070-2 External Source UBUNTU USN-3070-2
http://www.ubuntu.com/usn/USN-3070-3 External Source UBUNTU USN-3070-3
http://www.ubuntu.com/usn/USN-3070-4 External Source UBUNTU USN-3070-4
http://www.ubuntu.com/usn/USN-3071-1 External Source UBUNTU USN-3071-1
http://www.ubuntu.com/usn/USN-3071-2 External Source UBUNTU USN-3071-2
http://www.ubuntu.com/usn/USN-3072-1 External Source UBUNTU USN-3072-1
http://www.ubuntu.com/usn/USN-3072-2 External Source UBUNTU USN-3072-2
https://bto.bluecoat.com/security-advisory/sa131 External Source CONFIRM https://bto.bluecoat.com/security-advisory/sa131
https://bugzilla.redhat.com/show_bug.cgi?id=1354708 Issue Tracking External Source CONFIRM https://bugzilla.redhat.com/show_bug.cgi?id=1354708
https://github.com/Gnoxter/mountain_goat Exploit; Third Party Advisory External Source MISC https://github.com/Gnoxter/mountain_goat
https://github.com/torvalds/linux/commit/75ff39ccc1bd5d3c455b6822ab09e533c551f758 Issue Tracking; Patch External Source CONFIRM https://github.com/torvalds/linux/commit/75ff39ccc1bd5d3c455b6822ab09e533c551f758
https://kc.mcafee.com/corporate/index?page=content&id=SB10167 External Source CONFIRM https://kc.mcafee.com/corporate/index?page=content&id=SB10167
https://www.usenix.org/system/files/conference/usenixsecurity16/sec16_paper_cao.pdf Technical Description External Source MISC https://www.usenix.org/system/files/conference/usenixsecurity16/sec16_paper_cao.pdf

Technical Details

Vulnerability Type (View All)

  • Information Leak / Disclosure (CWE-200)

Change History 21 change records found - show changes