Use of a Broken or Risky Cryptographic Algorithm Affecting kernel-tools-libs-devel package, versions <0:5.14.0-687.5.1.el9_8


Severity

Recommended
medium

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.13% (3rd percentile)

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  • Snyk IDSNYK-ALMALINUX9-KERNELTOOLSLIBSDEVEL-21747257
  • published27 Oct 2026
  • disclosed19 May 2026

Introduced: 19 May 2026

CVE-2025-30156  (opens in a new tab)
CWE-327  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:9 kernel-tools-libs-devel to version 0:5.14.0-687.5.1.el9_8 or higher.
This issue was patched in ALSA-2026:18587.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-tools-libs-devel package and not the kernel-tools-libs-devel package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 relevant fixed versions and status.

Ceph is an open-source distributed storage platform providing object, block, and file storage. In versions prior to 20.2.4 and 19.2.6, the CephX authentication protocol encrypts tickets with AES-128-CBC in an unauthenticated mode that uses a hard-coded initialization vector and no message authentication, allowing an attacker to forge credentials and gain cluster-wide access. Because the ciphertext is malleable and the monitor will encrypt attacker-chosen entity names, an attacker holding one low-privilege key and able to observe CephX traffic can use the monitor as an encryption oracle and splice ciphertext blocks into valid tickets for privileged entities such as Manager, MDS, and OSD. The same lack of authentication also lets an attacker with CephX permissions escalate privileges by flipping a single bit in a service ticket to set its allow_all field to true. This issue is fixed in versions 20.2.4 and 19.2.6.

CVSS Base Scores

version 3.1