Ubuntu 5080-1: Libgcrypt vulnerabilities | LinuxSecurity.com

Advisories

==========================================================================
Ubuntu Security Notice USN-5080-1
September 16, 2021

libgcrypt20 vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 21.04
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

Libgcrypt could be made to expose sensitive information.

Software Description:
- libgcrypt20: LGPL Crypto library

Details:

It was discovered that Libgcrypt incorrectly handled ElGamal encryption. An
attacker could possibly use this issue to recover sensitive information.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 21.04:
  libgcrypt20                     1.8.7-2ubuntu2.1

Ubuntu 20.04 LTS:
  libgcrypt20                     1.8.5-5ubuntu1.1

Ubuntu 18.04 LTS:
  libgcrypt20                     1.8.1-4ubuntu1.3

In general, a standard system update will make all the necessary changes.

References:
  https://ubuntu.com/security/notices/USN-5080-1
  CVE-2021-33560, CVE-2021-40528

Package Information:
  https://launchpad.net/ubuntu/+source/libgcrypt20/1.8.7-2ubuntu2.1
  https://launchpad.net/ubuntu/+source/libgcrypt20/1.8.5-5ubuntu1.1
  https://launchpad.net/ubuntu/+source/libgcrypt20/1.8.1-4ubuntu1.3

Ubuntu 5080-1: Libgcrypt vulnerabilities

September 16, 2021

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 21.04 - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS Summary: Libgcrypt could be made to expose sensitive information. Software Description: - libgcrypt20: LGPL Crypto library Details: It was discovered that Libgcrypt incorrectly handled ElGamal encryption. An attacker could possibly use this issue to recover sensitive information.

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 21.04: libgcrypt20 1.8.7-2ubuntu2.1 Ubuntu 20.04 LTS: libgcrypt20 1.8.5-5ubuntu1.1 Ubuntu 18.04 LTS: libgcrypt20 1.8.1-4ubuntu1.3 In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-5080-1

CVE-2021-33560, CVE-2021-40528

Severity
Ubuntu Security Notice USN-5080-1

Package Information

https://launchpad.net/ubuntu/+source/libgcrypt20/1.8.7-2ubuntu2.1 https://launchpad.net/ubuntu/+source/libgcrypt20/1.8.5-5ubuntu1.1 https://launchpad.net/ubuntu/+source/libgcrypt20/1.8.1-4ubuntu1.3

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