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Linux Distros Unpatched Vulnerability : CVE-2025-15469

medium Nessus Plugin ID 296778

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Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

 - Issue summary: The 'openssl dgst' command-line tool silently truncates input data to 16MB when using one- shot signing algorithms and reports success instead of an error. Impact summary: A user signing or verifying files larger than 16MB with one-shot algorithms (such as Ed25519, Ed448, or ML-DSA) may believe the entire file is authenticated while trailing data beyond 16MB remains unauthenticated. When the 'openssl dgst' command is used with algorithms that only support one-shot signing (Ed25519, Ed448, ML- DSA-44, ML-DSA-65, ML-DSA-87), the input is buffered with a 16MB limit. If the input exceeds this limit, the tool silently truncates to the first 16MB and continues without signaling an error, contrary to what the documentation states. This creates an integrity gap where trailing bytes can be modified without detection if both signing and verification are performed using the same affected codepath. The issue affects only the command-line tool behavior. Verifiers that process the full message using library APIs will reject the signature, so the risk primarily affects workflows that both sign and verify with the affected 'openssl dgst' command. Streaming digest algorithms for 'openssl dgst' and library users are unaffected. The FIPS modules in 3.5 and 3.6 are not affected by this issue, as the command-line tools are outside the OpenSSL FIPS module boundary. OpenSSL 3.5 and 3.6 are vulnerable to this issue. OpenSSL 3.4, 3.3, 3.0, 1.1.1 and 1.0.2 are not affected by this issue. Fixed in OpenSSL 3.5.5 (Affected since 3.5.0).
 (CVE-2025-15469)

Note that Nessus relies on the presence of the package as reported by the vendor.

Solution

There is no known solution at this time.

See Also

https://access.redhat.com/security/cve/cve-2025-15469

https://security-tracker.debian.org/tracker/CVE-2025-15469

Plugin Details

Severity: Medium

ID: 296778

File Name: unpatched_CVE_2025_15469.nasl

Version: 1.5

Type: local

Agent: unix

Family: Misc.

Published: 1/27/2026

Updated: 1/28/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 4.3

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

CVSS Score Source: CVE-2025-15469

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5.1

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

Temporal Vector: CVSS:3.0/E:U/RL:U/RC:C

Vulnerability Information

CPE: cpe:/o:centos:centos:7, cpe:/o:redhat:enterprise_linux:6, cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:centos:centos:openssl, p-cpe:/a:centos:centos:openssl-devel, p-cpe:/a:centos:centos:openssl-perl, p-cpe:/a:centos:centos:openssl-static, p-cpe:/a:centos:centos:openssl-libs, p-cpe:/a:centos:centos:ovmf, p-cpe:/a:centos:centos:mokutil, p-cpe:/a:centos:centos:shim-ia32, p-cpe:/a:centos:centos:shim-unsigned-x64, p-cpe:/a:centos:centos:shim-x64, p-cpe:/a:debian:debian_linux:openssl, p-cpe:/a:redhat:enterprise_linux:openssl, p-cpe:/a:redhat:enterprise_linux:openssl-devel, p-cpe:/a:redhat:enterprise_linux:openssl-libs, p-cpe:/a:redhat:enterprise_linux:openssl-perl, p-cpe:/a:redhat:enterprise_linux:openssl-static, p-cpe:/a:redhat:enterprise_linux:mokutil, p-cpe:/a:redhat:enterprise_linux:shim, p-cpe:/a:redhat:enterprise_linux:ovmf, p-cpe:/a:redhat:enterprise_linux:edk2-ovmf, p-cpe:/a:redhat:enterprise_linux:shim-aa64, p-cpe:/a:redhat:enterprise_linux:shim-ia32, p-cpe:/a:redhat:enterprise_linux:shim-unsigned-x64, p-cpe:/a:redhat:enterprise_linux:shim-x64, p-cpe:/a:redhat:enterprise_linux:edk2-aarch64, p-cpe:/a:redhat:enterprise_linux:aavmf, cpe:/o:centos:centos:8, p-cpe:/a:centos:centos:edk2-aarch64, p-cpe:/a:centos:centos:edk2-ovmf, p-cpe:/a:centos:centos:shim-aa64, p-cpe:/a:redhat:enterprise_linux:shim-unsigned-aarch64, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:redhat:enterprise_linux:compat-openssl11, p-cpe:/a:redhat:enterprise_linux:compat-openssl10, p-cpe:/a:redhat:enterprise_linux:edk2-tools, p-cpe:/a:redhat:enterprise_linux:edk2-tools-doc, p-cpe:/a:centos:centos:compat-openssl11, p-cpe:/a:redhat:enterprise_linux:edk2, cpe:/o:redhat:enterprise_linux:10, p-cpe:/a:centos:centos:compat-openssl10, p-cpe:/a:centos:centos:shim, p-cpe:/a:centos:centos:aavmf, p-cpe:/a:centos:centos:mingw32-openssl, p-cpe:/a:centos:centos:mingw64-openssl, p-cpe:/a:redhat:enterprise_linux:mingw32-openssl, p-cpe:/a:redhat:enterprise_linux:mingw64-openssl, p-cpe:/a:centos:centos:edk2, cpe:/o:debian:debian_linux:14.0, p-cpe:/a:centos:centos:edk2-tools, p-cpe:/a:centos:centos:edk2-tools-doc, p-cpe:/a:centos:centos:shim-unsigned-aarch64

Required KB Items: Host/cpu, Host/local_checks_enabled, global_settings/vendor_unpatched, Host/OS/identifier

Exploit Ease: No known exploits are available

Reference Information

CVE: CVE-2025-15469