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Ubuntu 24.04 LTS / 25.04 / 25.10 : Valkey vulnerabilities (USN-7893-1)

critical Nessus Plugin ID 277321

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Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 24.04 LTS / 25.04 / 25.10 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-7893-1 advisory.

 Benny Isaacs, Nir Brakha, and Sagi Tzadik discovered that Valkey incorrectly handled memory when running Lua scripts. An authenticated attacker could use this vulnerability to trigger a use-after-free condition, and potentially achieve remote code execution on the Valkey server. (CVE-2025-49844)

 It was discovered that Valkey incorrectly handled memory when running Lua scripts. An authenticated attacker could use this vulnerability to trigger a integer overflow condition, and potentially achieve remote code execution on the Valkey server. (CVE-2025-46817)

 It was discovered that Valkey incorrectly handled Lua objects. An authenticated attacker could possibly use this issue to escalate their privileges. (CVE-2025-46818)

 It was discovered that Valkey incorrectly handled memory when running Lua scripts. An authenticated attacker could use this vulnerability to read out-of-bounds memory, causing a denial of service or possibly obtaining sensitive information. (CVE-2025-46819)

 It was discovered that Valkey incorrectly handled memory in some calculations. An attacker could possibly use this issue to cause a denial of service. (CVE-2025-49112)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://ubuntu.com/security/notices/USN-7893-1

Plugin Details

Severity: Critical

ID: 277321

File Name: ubuntu_USN-7893-1.nasl

Version: 1.1

Type: local

Agent: unix

Published: 12/3/2025

Updated: 12/3/2025

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 10.0

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 7

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2025-49844

CVSS v3

Risk Factor: Critical

Base Score: 9.9

Temporal Score: 8.9

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:24.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:valkey-tools, p-cpe:/a:canonical:ubuntu_linux:valkey-sentinel, cpe:/o:canonical:ubuntu_linux:25.04, cpe:/o:canonical:ubuntu_linux:25.10, p-cpe:/a:canonical:ubuntu_linux:valkey-redis-compat, p-cpe:/a:canonical:ubuntu_linux:valkey-server

Required KB Items: Host/cpu, Host/Debian/dpkg-l, Host/Ubuntu, Host/Ubuntu/release

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/26/2025

Vulnerability Publication Date: 6/2/2025

Reference Information

CVE: CVE-2025-46817, CVE-2025-46818, CVE-2025-46819, CVE-2025-49112, CVE-2025-49844

USN: 7893-1