Security update for libgcrypt

SUSE Security Update: Security update for libgcrypt
Announcement ID: SUSE-SU-2019:1859-1
Rating: moderate
References: #1097073 #1125740 #1138939
Cross-References: CVE-2019-12904
Affected Products:
  • SUSE Linux Enterprise Module for Open Buildservice Development Tools 15
  • SUSE Linux Enterprise Module for Basesystem 15

An update that solves one vulnerability and has two fixes is now available.

Description:

This update for libgcrypt fixes the following issues:
Security issues fixed:

  • CVE-2019-12904: The C implementation of AES is vulnerable to a flush-and-reload side-channel attack because physical addresses are available to other processes. (The C implementation is used on platforms where an assembly-language implementation is unavailable.) (bsc#1138939)

Other bugfixes:
  • Don't run full FIPS self-tests from constructor (bsc#1097073)
  • Skip all the self-tests except for binary integrity when called from the constructor (bsc#1097073)
  • Enforce the minimal RSA keygen size in fips mode (bsc#1125740)
  • avoid executing some tests twice.
  • Fixed a race condition in initialization.
  • Fixed env-script-interpreter in cavs_driver.pl
  • Fixed redundant fips tests in some situations causing failure to boot in fips mode. (bsc#1097073)

This helps during booting of the system in FIPS mode with insufficient entropy.

Patch Instructions:

To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

  • SUSE Linux Enterprise Module for Open Buildservice Development Tools 15:
    zypper in -t patch SUSE-SLE-Module-Development-Tools-OBS-15-2019-1859=1
  • SUSE Linux Enterprise Module for Basesystem 15:
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-2019-1859=1

Package List:

  • SUSE Linux Enterprise Module for Open Buildservice Development Tools 15 (aarch64 ppc64le s390x x86_64):
    • libgcrypt-cavs-1.8.2-6.17.1
    • libgcrypt-cavs-debuginfo-1.8.2-6.17.1
    • libgcrypt-debugsource-1.8.2-6.17.1
  • SUSE Linux Enterprise Module for Basesystem 15 (aarch64 ppc64le s390x x86_64):
    • libgcrypt-debugsource-1.8.2-6.17.1
    • libgcrypt-devel-1.8.2-6.17.1
    • libgcrypt-devel-debuginfo-1.8.2-6.17.1
    • libgcrypt20-1.8.2-6.17.1
    • libgcrypt20-debuginfo-1.8.2-6.17.1
    • libgcrypt20-hmac-1.8.2-6.17.1
  • SUSE Linux Enterprise Module for Basesystem 15 (x86_64):
    • libgcrypt20-32bit-1.8.2-6.17.1
    • libgcrypt20-32bit-debuginfo-1.8.2-6.17.1
    • libgcrypt20-hmac-32bit-1.8.2-6.17.1

References: