USN-4236-1: Libgcrypt vulnerability

Published Jan 13, 2020
·
Updated

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

Affected Software

7 affected componentsFixes available
GNU libgcrypt
All of the following
ubuntu/libgcrypt20<1.8.4-5ubuntu2.1
1.8.4-5ubuntu2.1
Ubuntu Ubuntu=19.10
All of the following
ubuntu/libgcrypt20<1.8.4-3ubuntu1.1
1.8.4-3ubuntu1.1
Ubuntu Ubuntu=19.04
All of the following
ubuntu/libgcrypt20<1.8.1-4ubuntu1.2
1.8.1-4ubuntu1.2
Ubuntu Ubuntu=18.04

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade ubuntu/libgcrypt20 to a version that resolves this vulnerability.

    Fixed in 1.8.4-5ubuntu2.1
  2. Upgrade

    Upgrade ubuntu/libgcrypt20 to a version that resolves this vulnerability.

    Fixed in 1.8.4-3ubuntu1.1
  3. Upgrade

    Upgrade ubuntu/libgcrypt20 to a version that resolves this vulnerability.

    Fixed in 1.8.1-4ubuntu1.2

Event History

Jan 13, 2020
Advisory Published
via Ubuntu·12:00 AM
Data Sourced
via Ubuntu·12:00 AM
DescriptionAffected Software

Child vulnerabilities

Contains the following vulnerabilities.

Frequently Asked Questions

1

What is the vulnerability ID for the Libgcrypt vulnerability?

The vulnerability ID for the Libgcrypt vulnerability is CVE-2019-13627.

2

What is the description of the Libgcrypt vulnerability?

The Libgcrypt vulnerability is susceptible to an ECDSA timing attack which could allow an attacker to recover sensitive information.

3

Which software is affected by the Libgcrypt vulnerability?

The Libgcrypt vulnerability affects the libgcrypt20 package.

4

How can I fix the Libgcrypt vulnerability?

To fix the Libgcrypt vulnerability, you need to update the libgcrypt20 package to version 1.8.4-5ubuntu2.1 (for Ubuntu 19.10), 1.8.4-3ubuntu1.1 (for Ubuntu 19.04), or 1.8.1-4ubuntu1.2 (for Ubuntu 18.04).

5

Where can I find more information about the Libgcrypt vulnerability?

You can find more information about the Libgcrypt vulnerability in the following references: [USN-4236-2](https://ubuntu.com/security/notices/USN-4236-2) and [USN-4236-3](https://ubuntu.com/security/notices/USN-4236-3).

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