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SUSE Linux Update: 2025:01889-1 moderate: nbdkit DoS Fix

suse
Calendar Grey June 11, 2025
Dist Suse Esm H88
A patch for nbdkit addresses severe vulnerability concerns in SUSE Linux that could affect system reliability. Prompt attention is recommended.
* bsc#1243108 * bsc#1243110 Cross-References: * CVE-2025-47711

Summary

## This update for nbdkit fixes the following issues: Update to version 1.36.5. 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: * tests: Add test-blkio.sh to unconditional EXTRA_DIST rule. * Revert "valgrind: Add suppression for liblzma bug". * vddk: Move "Unknown error" information to the manual. * ocaml Add better comments to the example plugin. * ocaml: Simplify pread operation. * ocaml: Define a struct handle to hold the OCaml handle.

Topics%20covered

Topics Covered

security advisory moderate security update DoS SUSE Linux nbdkit

References

* bsc#1243108

* bsc#1243110

Cross-

* 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:

* openSUSE Leap 15.4

* openSUSE Leap 15.6

* Server Applications Module 15-SP6

* SUSE Linux Enterprise Real Time 15 SP6

* SUSE Linux Enterprise Server 15 SP6

Announcement ID: SUSE-SU-2025:01889-1
Release Date: 2025-06-11T05:43:41Z
Rating: moderate

Topics%20covered

Topics Covered

security advisory moderate security update DoS SUSE Linux nbdkit

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