Medium severity · published Aug 6, 2016
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…
4.8
CVSS
14.5%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)14.5% · higher than 97% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AN
Android · Google
through 7.0 · source: NVD
KE
Kernel · Linux
through 4.6.6 · source: NVD
VS
VM Server · Oracle
3.3; 3.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-5696
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-5696
Issue Tracking
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=75ff39ccc1bd5d3c455b6822ab09e533c551f758
rhn.redhat.com
http://rhn.redhat.com/errata/RHSA-2016-1631.html
rhn.redhat.com
http://rhn.redhat.com/errata/RHSA-2016-1632.html
rhn.redhat.com
http://rhn.redhat.com/errata/RHSA-2016-1633.html
rhn.redhat.com
http://rhn.redhat.com/errata/RHSA-2016-1657.html
rhn.redhat.com
http://rhn.redhat.com/errata/RHSA-2016-1664.html
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