CVE-2015-3405

2017-08-0900:00:00

ubuntu.com

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.003 Low

EPSS

Percentile

69.0%

JSON

ntp-keygen in ntp 4.2.8px before 4.2.8p2-RC2 and 4.3.x before 4.3.12 does
not generate MD5 keys with sufficient entropy on big endian machines when
the lowest order byte of the temp variable is between 0x20 and 0x7f and not
#, which might allow remote attackers to obtain the value of generated MD5
keys via a brute force attack with the 93 possible keys.

Bugs

<https://bugs.ntp.org/show_bug.cgi?id=2797>

Notes

Author	Note
mdeslaur	fixed in USN-2567-1 before the CVE was assigned we will not be fixing this in lucid before it goes EoL

OSVersionArchitecturePackageVersionFilename
ubuntu12.04noarchntp< 1:4.2.6.p3+dfsg-1ubuntu3.4UNKNOWN
ubuntu14.04noarchntp< 1:4.2.6.p5+dfsg-3ubuntu2.14.04.3UNKNOWN
ubuntu14.10noarchntp< 1:4.2.6.p5+dfsg-3ubuntu2.14.10.3UNKNOWN
ubuntu15.04noarchntp< 1:4.2.6.p5+dfsg-3ubuntu5UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	12.04	noarch	ntp	< 1:4.2.6.p3+dfsg-1ubuntu3.4	UNKNOWN
ubuntu	14.04	noarch	ntp	< 1:4.2.6.p5+dfsg-3ubuntu2.14.04.3	UNKNOWN
ubuntu	14.10	noarch	ntp	< 1:4.2.6.p5+dfsg-3ubuntu2.14.10.3	UNKNOWN
ubuntu	15.04	noarch	ntp	< 1:4.2.6.p5+dfsg-3ubuntu5	UNKNOWN