SUSE-SU-2025:01888-1: moderate: Security update for nbdkit

[SLE-UPDATES]

# Security update for nbdkit

Announcement ID: SUSE-SU-2025:01888-1  
Release Date: 2025-06-11T05:43:28Z  
Rating: moderate  
References:

  * bsc#1243108
  * bsc#1243110

  
Cross-References:

  * CVE-2025-47711
  * CVE-2025-47712

  
CVSS scores:

  * CVE-2025-47711 ( SUSE ):  7.1
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2025-47711 ( SUSE ):  6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-47711 ( NVD ):  4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
  * CVE-2025-47712 ( SUSE ):  5.3
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
  * CVE-2025-47712 ( SUSE ):  6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-47712 ( NVD ):  4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

  
Affected Products:

  * Server Applications Module 15-SP7
  * SUSE Linux Enterprise Real Time 15 SP7
  * SUSE Linux Enterprise Server 15 SP7
  * SUSE Linux Enterprise Server for SAP Applications 15 SP7

  
  
An update that solves two vulnerabilities can now be installed.

## Description:

This update for nbdkit fixes the following issues:

Update to version 1.40.6.

Security fixes:

  * CVE-2025-47712: integer overflow in blocksize filter when processing client
    block status requests larger than 2**32 will trigger an assertion failure
    and cause a denial-of-service. (bsc#1243108).
  * CVE-2025-47711: off-by-one error when processing block status results from
    plugins on behalf of an NBD client may trigger an assertion failure and
    cause a denial of service (bsc#1243110).

Other fixes and changes:

  * golang: Support GCC 15.
  * openbsd: curl: Include pthread.h.
  * rust: Fix "overindented" list in comment.
  * rust: Declare explicit extern "C" API.
  * plugins/rust: Use CStr literals for static strings.
  * vddk: do_extents: Avoid reading partial chunk beyond the end of the disk.
  * vddk: do_extents: Exit the function if we hit req_one condition.
  * vddk: do_extents: Mark some local variables const.
  * vddk: Cache the disk size in the handle.
  * vddk: Include <stdbool.h>.
  * python: examples: Fix comment above API_VERSION constant.
  * tcl: Fix for Tcl 9.0 compatibility.
  * plugins/ocaml/NBDKit.ml: Sort bindings into order.
  * ocaml: Don't call abort if caml_c_thread_unregister fails.
  * ocaml: Use real addresses instead of (void*)<constant>s.
  * evil: Link to nbdkit_parse_probability(3).

## 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:

  * Server Applications Module 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP7-2025-1888=1

## Package List:

  * Server Applications Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    * nbdkit-basic-filters-debuginfo-1.40.6-150700.4.3.1
    * nbdkit-server-1.40.6-150700.4.3.1
    * nbdkit-server-debuginfo-1.40.6-150700.4.3.1
    * nbdkit-nbd-plugin-debuginfo-1.40.6-150700.4.3.1
    * nbdkit-basic-plugins-debuginfo-1.40.6-150700.4.3.1
    * nbdkit-basic-filters-1.40.6-150700.4.3.1
    * nbdkit-debuginfo-1.40.6-150700.4.3.1
    * nbdkit-curl-plugin-1.40.6-150700.4.3.1
    * nbdkit-nbd-plugin-1.40.6-150700.4.3.1
    * nbdkit-debugsource-1.40.6-150700.4.3.1
    * nbdkit-python-plugin-1.40.6-150700.4.3.1
    * nbdkit-ssh-plugin-1.40.6-150700.4.3.1
    * nbdkit-ssh-plugin-debuginfo-1.40.6-150700.4.3.1
    * nbdkit-curl-plugin-debuginfo-1.40.6-150700.4.3.1
    * nbdkit-1.40.6-150700.4.3.1
    * nbdkit-python-plugin-debuginfo-1.40.6-150700.4.3.1
    * nbdkit-basic-plugins-1.40.6-150700.4.3.1
  * Server Applications Module 15-SP7 (x86_64)
    * nbdkit-vddk-plugin-1.40.6-150700.4.3.1
    * nbdkit-vddk-plugin-debuginfo-1.40.6-150700.4.3.1

## References:

  * https://www.suse.com/security/cve/CVE-2025-47711.html
  * https://www.suse.com/security/cve/CVE-2025-47712.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1243108
  * https://bugzilla.suse.com/show_bug.cgi?id=1243110

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