CVE-2017-7526

2017-06-2900:00:00

ubuntu.com

6.8 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.004 Low

EPSS

Percentile

73.0%

JSON

libgcrypt before version 1.7.8 is vulnerable to a cache side-channel attack
resulting into a complete break of RSA-1024 while using the left-to-right
method for computing the sliding-window expansion. The same attack is
believed to work on RSA-2048 with moderately more computation. This
side-channel requires that attacker can run arbitrary software on the
hardware where the private RSA key is used.

Bugs

<https://bugs.launchpad.net/ubuntu/+source/gnupg/+bug/1785176>

OSVersionArchitecturePackageVersionFilename
ubuntu14.04noarchgnupg< 1.4.16-1ubuntu2.6UNKNOWN
ubuntu16.04noarchgnupg< 1.4.20-1ubuntu3.3UNKNOWN
ubuntu14.04noarchlibgcrypt11< 1.5.3-2ubuntu4.5UNKNOWN
ubuntu16.04noarchlibgcrypt20< 1.6.5-2ubuntu0.3UNKNOWN
ubuntu16.10noarchlibgcrypt20< 1.7.2-2ubuntu1.1UNKNOWN
ubuntu17.04noarchlibgcrypt20< 1.7.6-1ubuntu0.1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	14.04	noarch	gnupg	< 1.4.16-1ubuntu2.6	UNKNOWN
ubuntu	16.04	noarch	gnupg	< 1.4.20-1ubuntu3.3	UNKNOWN
ubuntu	14.04	noarch	libgcrypt11	< 1.5.3-2ubuntu4.5	UNKNOWN
ubuntu	16.04	noarch	libgcrypt20	< 1.6.5-2ubuntu0.3	UNKNOWN
ubuntu	16.10	noarch	libgcrypt20	< 1.7.2-2ubuntu1.1	UNKNOWN
ubuntu	17.04	noarch	libgcrypt20	< 1.7.6-1ubuntu0.1	UNKNOWN