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ubuntucveUbuntu.comUB:CVE-2016-5696
HistoryAug 06, 2016 - 12:00 a.m.

CVE-2016-5696

2016-08-0600:00:00
ubuntu.com
ubuntu.com
22

CVSS2

5.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:P/A:P

CVSS3

4.8

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

LOW

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

EPSS

0.004

Percentile

75.1%

JSON

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.

Bugs

Notes

Author Note
jdstrand android kernels (flo, goldfish, grouper, maguro, mako and manta) are not supported on the Ubuntu Touch 14.10 and earlier preview kernels linux-lts-saucy no longer receives official support linux-lts-quantal no longer receives official support
sbeattie fix is going to land in Ubuntu kernels in this SRU cycle, with a likely release date of Aug 27. Earlier access to the kernels with the fix will be available from the -proposed pocket, though they come with the risk of being less tested.
OSVersionArchitecturePackageVersionFilename
ubuntu12.04noarchlinux< 3.2.0-109.150UNKNOWN
ubuntu14.04noarchlinux< 3.13.0-95.142UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-36.55UNKNOWN
ubuntu12.04noarchlinux-armadaxp< 3.2.0-1672.98UNKNOWN
ubuntu12.04noarchlinux-lts-trusty< 3.13.0-95.142~precise1UNKNOWN
ubuntu14.04noarchlinux-lts-vivid< 3.19.0-68.76~14.04.1UNKNOWN
ubuntu14.04noarchlinux-lts-xenial< 4.4.0-36.55~14.04.1UNKNOWN
ubuntu16.04noarchlinux-raspi2< 4.4.0-1021.27UNKNOWN
ubuntu16.04noarchlinux-snapdragon< 4.4.0-1024.27UNKNOWN
ubuntu12.04noarchlinux-ti-omap4< 3.2.0-1487.114UNKNOWN

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CVSS2

5.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:P/A:P

CVSS3

4.8

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

LOW

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

EPSS

0.004

Percentile

75.1%

JSON
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