SUSE-RU-2026:23847-1: critical: Recommended update for gcc15, gcc16

[SLE-UPDATES]

# Recommended update for gcc15, gcc16

Announcement ID: SUSE-RU-2026:23847-1  
Release Date: 2026-09-18T22:56:38Z  
Rating: critical  
References:

  * bsc#1262698
  * bsc#1266262
  * bsc#1277919
  * bsc#1279863

  
Affected Products:

  * SUSE Linux Micro 6.2
  * SUSE Linux Micro Extras 6.2

  
  
An update that has four fixes can now be installed.

## Recommended update for gcc15, gcc16

### Description:

This update for gcc15, gcc16 fixes the following issues:

Changes in gcc15:

  * Rebuild to rename library packages after the switch to gcc16 libraries.

Changes in gcc16:

  * Fix build reproducability when PCH is used.
  * Fix auto-detection of Zen6 [bsc#1277919]

  * Remove support for s390 (32bit), make sure to configure s390x with
    \--disable-multilib to avoid configury error without explicit disable of
    multilibs. Support for s390 is officially deprecated.

## Recommended update for mozilla-nss

### Description:

This update for mozilla-nss fixes the following issues:

Changes in mozilla-nss:

  * Fix potential crash when verifying password length in PBKDF2 (boo#1279863)
  * Fix upper bound to allow FIPS approval for P-521.
  * Approve HKDF and key concatenation in the context of TLS. This enables
    approved TLS 1.3 channels with PQC (bsc#1262698).
  * Don't consider unapproved algorithms for TLS 1.3 in FIPS mode.
  * Mark TLS 1.2 KDF without extended master secret non-approved for FIPS
    (bsc#1266262).

## 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:

  * SUSE Linux Micro 6.2  
    zypper in -t patch SUSE-SL-Micro-6.2-1722

  * SUSE Linux Micro Extras 6.2  
    zypper in -t patch SUSE-SLE-Micro-Extras-6.2-1707

## Package List:

  * SUSE Linux Micro 6.2 (aarch64 ppc64le s390x x86_64)
    * mozilla-nss-tools-debuginfo-3.125-160000.2.1
    * libfreebl3-debuginfo-3.125-160000.2.1
    * mozilla-nss-certs-3.125-160000.2.1
    * mozilla-nss-certs-debuginfo-3.125-160000.2.1
    * libsoftokn3-debuginfo-3.125-160000.2.1
    * mozilla-nss-debuginfo-3.125-160000.2.1
    * libsoftokn3-3.125-160000.2.1
    * mozilla-nss-debugsource-3.125-160000.2.1
    * mozilla-nss-tools-3.125-160000.2.1
    * libfreebl3-3.125-160000.2.1
    * mozilla-nss-3.125-160000.2.1
  * SUSE Linux Micro Extras 6.2 (aarch64 ppc64le s390x x86_64)
    * cpp15-debuginfo-15.3.0+git11272-160000.2.1
    * cpp15-15.3.0+git11272-160000.2.1
    * gcc15-debuginfo-15.3.0+git11272-160000.2.1
    * gcc15-debugsource-15.3.0+git11272-160000.2.1
    * gcc15-15.3.0+git11272-160000.2.1

## References:

  * https://bugzilla.suse.com/show_bug.cgi?id=1262698
  * https://bugzilla.suse.com/show_bug.cgi?id=1266262
  * https://bugzilla.suse.com/show_bug.cgi?id=1277919
  * https://bugzilla.suse.com/show_bug.cgi?id=1279863

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