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Vulnerability of Libgcrypt: information disclosure via ECDSA Timing Attack

Synthesis of the vulnerability 

An attacker can bypass access restrictions to data via ECDSA Timing Attack of Libgcrypt, in order to obtain sensitive information. This vulnerability originates from VIGILANCE-VUL-30530.
Vulnerable software: Debian, GnuPG, openSUSE Leap, Solaris, SUSE Linux Enterprise Desktop, SLES, Ubuntu, Unix (platform) ~ not comprehensive.
Severity of this announce: 1/4.
Creation date: 30/08/2019.
Références of this computer vulnerability: CVE-2019-13627, DLA-1931-1, DLA-1931-2, openSUSE-SU-2019:2161-1, openSUSE-SU-2020:0022-1, SUSE-SU-2019:2349-1, SUSE-SU-2019:2510-1, SUSE-SU-2019:3392-1, USN-4236-1, USN-4236-2, VIGILANCE-VUL-30205.

Description of the vulnerability 

An attacker can bypass access restrictions to data via ECDSA Timing Attack of Libgcrypt, in order to obtain sensitive information. This vulnerability originates from VIGILANCE-VUL-30530.
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This security weakness impacts software or systems such as Debian, GnuPG, openSUSE Leap, Solaris, SUSE Linux Enterprise Desktop, SLES, Ubuntu, Unix (platform) ~ not comprehensive.

Our Vigil@nce team determined that the severity of this threat bulletin is low.

The trust level is of type confirmed by the editor, with an origin of user shell.

An attacker with a expert ability can exploit this threat.

Solutions for this threat 

Libgcrypt: version 1.8.5.
The version 1.8.5 is fixed:
  https://gnupg.org/ftp/gcrypt/libgcrypt/libgcrypt-1.8.5.tar.bz2

Debian 8: new libgcrypt20 packages.
New packages are available:
  Debian 8: libgcrypt20 1.6.3-2+deb8u8

openSUSE Leap 15.0: new libgcrypt packages.
New packages are available:
  openSUSE Leap 15.0: libgcrypt20 1.8.2-lp150.5.13.1

openSUSE Leap 15.1: new libgcrypt packages.
New packages are available:
  openSUSE Leap 15.1: libgcrypt 1.8.2-lp151.9.7.1

Oracle Solaris: patch for third party software of October 2019 v2.
A patch is available:
  https://support.oracle.com/rs?type=doc&id=1448883.1

SUSE LE 12: new libgcrypt packages.
New packages are available:
  SUSE LE 12 SP1: libgcrypt 1.6.1-16.68.1
  SUSE LE 12 SP2: libgcrypt 1.6.1-16.68.1
  SUSE LE 12 SP3: libgcrypt 1.6.1-16.68.1
  SUSE LE 12 SP4: libgcrypt 1.6.1-16.68.1
  SUSE LE 12 SP5: libgcrypt 1.6.1-16.68.1

SUSE LE 15 RTM: new libgcrypt packages.
New packages are available:
  SUSE LE 15 RTM: libgcrypt 1.8.2-6.20.1

SUSE LE 15 SP1: new libgcrypt packages.
New packages are available:
  SUSE LE 15 SP1: libgcrypt 1.8.2-8.12.1

Ubuntu: new libgcrypt20 packages.
New packages are available:
  Ubuntu 19.10: libgcrypt20 1.8.4-5ubuntu2.1
  Ubuntu 19.04: libgcrypt20 1.8.4-3ubuntu1.1
  Ubuntu 18.04 LTS: libgcrypt20 1.8.1-4ubuntu1.2
  Ubuntu 16.04 LTS: libgcrypt20 1.6.5-2ubuntu0.6
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