Security update for libgcrypt

Announcement ID: SUSE-SU-2026:3491-1
Release Date: 2026-08-04T11:58:46Z
Rating: moderate
References:
Cross-References:
CVSS scores:
  • CVE-2026-41989 ( SUSE ): 5.8 CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
  • CVE-2026-41989 ( SUSE ): 6.3 CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H
  • CVE-2026-41989 ( NVD ): 6.7 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
Affected Products:
  • openSUSE Leap 15.5
  • SUSE Linux Enterprise Micro 5.5

An update that solves one vulnerability can now be installed.

Description:

This update for libgcrypt fixes the following issue

  • CVE-2026-41989: heap-based buffer overflow when processing crafted ECDH ciphertext can lead to a denial of service (bsc#1262684).

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 Enterprise Micro 5.5
    zypper in -t patch SUSE-SLE-Micro-5.5-2026-3491=1
  • openSUSE Leap 15.5
    zypper in -t patch SUSE-2026-3491=1

Package List:

  • openSUSE Leap 15.5 (aarch64 i586 ppc64le s390x x86_64)
    • libgcrypt-debugsource-1.9.4-150500.12.6.1
    • libgcrypt20-1.9.4-150500.12.6.1
    • libgcrypt-cavs-1.9.4-150500.12.6.1
    • libgcrypt-devel-1.9.4-150500.12.6.1
    • libgcrypt20-debuginfo-1.9.4-150500.12.6.1
    • libgcrypt-devel-debuginfo-1.9.4-150500.12.6.1
    • libgcrypt-cavs-debuginfo-1.9.4-150500.12.6.1
    • libgcrypt20-hmac-1.9.4-150500.12.6.1
  • openSUSE Leap 15.5 (x86_64)
    • libgcrypt20-32bit-debuginfo-1.9.4-150500.12.6.1
    • libgcrypt20-32bit-1.9.4-150500.12.6.1
    • libgcrypt-devel-32bit-1.9.4-150500.12.6.1
    • libgcrypt20-hmac-32bit-1.9.4-150500.12.6.1
    • libgcrypt-devel-32bit-debuginfo-1.9.4-150500.12.6.1
  • openSUSE Leap 15.5 (aarch64_ilp32)
    • libgcrypt20-hmac-64bit-1.9.4-150500.12.6.1
    • libgcrypt20-64bit-debuginfo-1.9.4-150500.12.6.1
    • libgcrypt-devel-64bit-1.9.4-150500.12.6.1
    • libgcrypt20-64bit-1.9.4-150500.12.6.1
    • libgcrypt-devel-64bit-debuginfo-1.9.4-150500.12.6.1
  • SUSE Linux Enterprise Micro 5.5 (aarch64 ppc64le s390x x86_64)
    • libgcrypt-debugsource-1.9.4-150500.12.6.1
    • libgcrypt20-debuginfo-1.9.4-150500.12.6.1
    • libgcrypt20-1.9.4-150500.12.6.1
    • libgcrypt20-hmac-1.9.4-150500.12.6.1

References: