SUSE-SU-2024:2756-1: important: Security update for ksh

[SLE-UPDATES]

# Security update for ksh

Announcement ID: SUSE-SU-2024:2756-1  
Rating: important  
References:

  * bsc#1129288
  * bsc#1160796
  * bsc#1224057

  
Cross-References:

  * CVE-2019-14868

  
CVSS scores:

  * CVE-2019-14868 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2019-14868 ( NVD ):  7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

  
Affected Products:

  * Legacy Module 12
  * SUSE Linux Enterprise High Performance Computing 12 SP2
  * SUSE Linux Enterprise High Performance Computing 12 SP3
  * SUSE Linux Enterprise High Performance Computing 12 SP4
  * SUSE Linux Enterprise High Performance Computing 12 SP5
  * SUSE Linux Enterprise Server 12
  * SUSE Linux Enterprise Server 12 SP1
  * SUSE Linux Enterprise Server 12 SP2
  * SUSE Linux Enterprise Server 12 SP3
  * SUSE Linux Enterprise Server 12 SP4
  * SUSE Linux Enterprise Server 12 SP5
  * SUSE Linux Enterprise Server for SAP Applications 12
  * SUSE Linux Enterprise Server for SAP Applications 12 SP1
  * SUSE Linux Enterprise Server for SAP Applications 12 SP2
  * SUSE Linux Enterprise Server for SAP Applications 12 SP3
  * SUSE Linux Enterprise Server for SAP Applications 12 SP4
  * SUSE Linux Enterprise Server for SAP Applications 12 SP5
  * SUSE Linux Enterprise Software Development Kit 12 SP5

  
  
An update that solves one vulnerability and has two security fixes can now be
installed.

## Description:

This update for ksh fixes the following issues:

  * CVE-2019-14868: Fixed code injection due to environment variables on startup
    interpreted as arithmetic expression (bsc#1160796)

Other fixes: \- do not use posix_spawn as it lacks proper job handling
(bsc#1224057) \- fix segfault in variable substitution (bsc#1129288)

## Patch Instructions:

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

  * Legacy Module 12  
    zypper in -t patch SUSE-SLE-Module-Legacy-12-2024-2756=1

  * SUSE Linux Enterprise Software Development Kit 12 SP5  
    zypper in -t patch SUSE-SLE-SDK-12-SP5-2024-2756=1

## Package List:

  * Legacy Module 12 (aarch64 ppc64le s390x x86_64)
    * ksh-debuginfo-93vu-19.3.2
    * ksh-debugsource-93vu-19.3.2
    * ksh-93vu-19.3.2
  * SUSE Linux Enterprise Software Development Kit 12 SP5 (aarch64 ppc64le s390x
    x86_64)
    * ksh-debuginfo-93vu-19.3.2
    * ksh-debugsource-93vu-19.3.2
    * ksh-devel-93vu-19.3.2

## References:

  * https://www.suse.com/security/cve/CVE-2019-14868.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1129288
  * https://bugzilla.suse.com/show_bug.cgi?id=1160796
  * https://bugzilla.suse.com/show_bug.cgi?id=1224057

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