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ubuntuUbuntuUSN-3347-1
HistoryJul 03, 2017 - 12:00 a.m.

Libgcrypt vulnerabilities

2017-07-0300:00:00
ubuntu.com
44

CVSS2

4.3

Attack Vector

NETWORK

Attack 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

CVSS3

6.8

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

AI Score

6.8

Confidence

High

EPSS

0.004

Percentile

73.7%

JSON

Releases

  • Ubuntu 17.04
  • Ubuntu 16.10
  • Ubuntu 16.04 ESM
  • Ubuntu 14.04 ESM

Packages

  • libgcrypt11 - LGPL Crypto library
  • libgcrypt20 - LGPL Crypto library

Details

Daniel J. Bernstein, Joachim Breitner, Daniel Genkin, Leon Groot
Bruinderink, Nadia Heninger, Tanja Lange, Christine van Vredendaal, and
Yuval Yarom discovered that Libgcrypt was susceptible to an attack via
side channels. A local attacker could use this attack to recover RSA
private keys. (CVE-2017-7526)

It was discovered that Libgcrypt was susceptible to an attack via
side channels. A local attacker could use this attack to possibly recover
EdDSA private keys. This issue only applied to Ubuntu 16.04 LTS, Ubuntu
16.10 and Ubuntu 17.04. (CVE-2017-9526)

OSVersionArchitecturePackageVersionFilename
Ubuntu17.04noarchlibgcrypt20< 1.7.6-1ubuntu0.1UNKNOWN
Ubuntu17.04noarchlibgcrypt-mingw-w64-dev< 1.7.6-1ubuntu0.1UNKNOWN
Ubuntu17.04noarchlibgcrypt11-dev< 1.5.4-3+really1.7.6-1ubuntu0.1UNKNOWN
Ubuntu17.04noarchlibgcrypt20-dbgsym< 1.7.6-1ubuntu0.1UNKNOWN
Ubuntu17.04noarchlibgcrypt20-dev< 1.7.6-1ubuntu0.1UNKNOWN
Ubuntu17.04noarchlibgcrypt20-dev-dbgsym< 1.7.6-1ubuntu0.1UNKNOWN
Ubuntu17.04noarchlibgcrypt20-doc< 1.7.6-1ubuntu0.1UNKNOWN
Ubuntu17.04noarchlibgcrypt20-udeb< 1.7.6-1ubuntu0.1UNKNOWN
Ubuntu17.04noarchlibgcrypt20-udeb-dbgsym< 1.7.6-1ubuntu0.1UNKNOWN
Ubuntu16.10noarchlibgcrypt20< 1.7.2-2ubuntu1.1UNKNOWN
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CVSS2

4.3

Attack Vector

NETWORK

Attack 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

CVSS3

6.8

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

AI Score

6.8

Confidence

High

EPSS

0.004

Percentile

73.7%

JSON
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