SUSE-SU-2021:2196-1: moderate: Security update for lua53

[sle-security-updates at lists.suse.com]

   SUSE Security Update: Security update for lua53
______________________________________________________________________________

Announcement ID:    SUSE-SU-2021:2196-1
Rating:             moderate
References:         #1175448 #1175449 
Cross-References:   CVE-2020-24370 CVE-2020-24371
CVSS scores:
                    CVE-2020-24370 (NVD) : 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
                    CVE-2020-24370 (SUSE): 4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
                    CVE-2020-24371 (NVD) : 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
                    CVE-2020-24371 (SUSE): 5.1 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Products:
                    SUSE MicroOS 5.0
                    SUSE Linux Enterprise Module for Basesystem 15-SP3
                    SUSE Linux Enterprise Module for Basesystem 15-SP2
______________________________________________________________________________

   An update that fixes two vulnerabilities is now available.

Description:

   This update for lua53 fixes the following issues:

   Update to version 5.3.6:

   - CVE-2020-24371: lgc.c mishandles the interaction between barriers and
     the sweep phase, leading to a memory access violation involving
     collectgarbage (bsc#1175449)
   - CVE-2020-24370: ldebug.c allows a negation overflow and segmentation
     fault in getlocal and setlocal (bsc#1175448)
   - Long brackets with a huge number of '=' overflow some internal buffer
     arithmetic.


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 MicroOS 5.0:

      zypper in -t patch SUSE-SUSE-MicroOS-5.0-2021-2196=1

   - SUSE Linux Enterprise Module for Basesystem 15-SP3:

      zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP3-2021-2196=1

   - SUSE Linux Enterprise Module for Basesystem 15-SP2:

      zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP2-2021-2196=1



Package List:

   - SUSE MicroOS 5.0 (aarch64 x86_64):

      liblua5_3-5-5.3.6-3.6.1
      liblua5_3-5-debuginfo-5.3.6-3.6.1
      lua53-debuginfo-5.3.6-3.6.1
      lua53-debugsource-5.3.6-3.6.1

   - SUSE Linux Enterprise Module for Basesystem 15-SP3 (aarch64 ppc64le s390x x86_64):

      liblua5_3-5-5.3.6-3.6.1
      liblua5_3-5-debuginfo-5.3.6-3.6.1
      lua53-5.3.6-3.6.1
      lua53-debuginfo-5.3.6-3.6.1
      lua53-debugsource-5.3.6-3.6.1
      lua53-devel-5.3.6-3.6.1

   - SUSE Linux Enterprise Module for Basesystem 15-SP3 (x86_64):

      liblua5_3-5-32bit-5.3.6-3.6.1
      liblua5_3-5-32bit-debuginfo-5.3.6-3.6.1

   - SUSE Linux Enterprise Module for Basesystem 15-SP2 (aarch64 ppc64le s390x x86_64):

      liblua5_3-5-5.3.6-3.6.1
      liblua5_3-5-debuginfo-5.3.6-3.6.1
      lua53-5.3.6-3.6.1
      lua53-debuginfo-5.3.6-3.6.1
      lua53-debugsource-5.3.6-3.6.1
      lua53-devel-5.3.6-3.6.1

   - SUSE Linux Enterprise Module for Basesystem 15-SP2 (x86_64):

      liblua5_3-5-32bit-5.3.6-3.6.1
      liblua5_3-5-32bit-debuginfo-5.3.6-3.6.1


References:

   https://www.suse.com/security/cve/CVE-2020-24370.html
   https://www.suse.com/security/cve/CVE-2020-24371.html
   https://bugzilla.suse.com/1175448
   https://bugzilla.suse.com/1175449