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ubuntuUbuntuUSN-4236-2
HistoryJan 14, 2020 - 12:00 a.m.

Libgcrypt vulnerability

2020-01-1400:00:00
ubuntu.com
56

CVSS2

2.6

Attack Vector

LOCAL

Attack Complexity

HIGH

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

6.3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

AI Score

6.6

Confidence

High

EPSS

0.003

Percentile

72.1%

Releases

  • Ubuntu 16.04 ESM

Packages

  • libgcrypt20 - LGPL Crypto library

Details

USN-4236-1 fixed a vulnerability in Libgcrypt. This update provides the
corresponding fix for Ubuntu 16.04 LTS.

Original advisory details:

It was discovered that Libgcrypt was susceptible to a ECDSA timing attack.
An attacker could possibly use this attack to recover sensitive
information.

CVSS2

2.6

Attack Vector

LOCAL

Attack Complexity

HIGH

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

6.3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

AI Score

6.6

Confidence

High

EPSS

0.003

Percentile

72.1%