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Linux Distros Unpatched Vulnerability : CVE-2025-69419

high Nessus Plugin ID 296773

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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: Calling PKCS12_get_friendlyname() function on a maliciously crafted PKCS#12 file with a BMPString (UTF-16BE) friendly name containing non-ASCII BMP code point can trigger a one byte write before the allocated buffer. Impact summary: The out-of-bounds write can cause a memory corruption which can have various consequences including a Denial of Service. The OPENSSL_uni2utf8() function performs a two-pass conversion of a PKCS#12 BMPString (UTF-16BE) to UTF-8. In the second pass, when emitting UTF-8 bytes, the helper function bmp_to_utf8() incorrectly forwards the remaining UTF-16 source byte count as the destination buffer capacity to UTF8_putc(). For BMP code points above U+07FF, UTF-8 requires three bytes, but the forwarded capacity can be just two bytes. UTF8_putc() then returns -1, and this negative value is added to the output length without validation, causing the length to become negative. The subsequent trailing NUL byte is then written at a negative offset, causing write outside of heap allocated buffer.
 The vulnerability is reachable via the public PKCS12_get_friendlyname() API when parsing attacker- controlled PKCS#12 files. While PKCS12_parse() uses a different code path that avoids this issue, PKCS12_get_friendlyname() directly invokes the vulnerable function. Exploitation requires an attacker to provide a malicious PKCS#12 file to be parsed by the application and the attacker can just trigger a one zero byte write before the allocated buffer. For that reason the issue was assessed as Low severity according to our Security Policy. The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this issue, as the PKCS#12 implementation is outside the OpenSSL FIPS module boundary. OpenSSL 3.6, 3.5, 3.4, 3.3, 3.0 and 1.1.1 are vulnerable to this issue. OpenSSL 1.0.2 is not affected by this issue.
 (CVE-2025-69419)

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-2025-69419

https://security-tracker.debian.org/tracker/CVE-2025-69419

Plugin Details

Severity: High

ID: 296773

File Name: unpatched_CVE_2025_69419.nasl

Version: 1.6

Type: local

Agent: unix

Family: Misc.

Published: 1/27/2026

Updated: 1/29/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2025-69419

CVSS v3

Risk Factor: High

Base Score: 7.4

Temporal Score: 6.8

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

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

Vulnerability Information

CPE: p-cpe:/a:centos:centos:openssl, cpe:/o:debian:debian_linux:11.0, p-cpe:/a:redhat:enterprise_linux:openssl-devel, p-cpe:/a:redhat:enterprise_linux:mingw64-openssl, cpe:/o:redhat:enterprise_linux:6, p-cpe:/a:centos:centos:compat-openssl10, p-cpe:/a:redhat:enterprise_linux:openssl-perl, p-cpe:/a:centos:centos:openssl-libs, p-cpe:/a:centos:centos:openssl-perl, p-cpe:/a:redhat:enterprise_linux:openssl-static, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:centos:centos:openssl-static, cpe:/o:centos:centos:8, p-cpe:/a:redhat:enterprise_linux:compat-openssl10, p-cpe:/a:redhat:enterprise_linux:compat-openssl11, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:openssl-libs, p-cpe:/a:centos:centos:mingw64-openssl, p-cpe:/a:centos:centos:openssl-devel, p-cpe:/a:redhat:enterprise_linux:mingw32-openssl, p-cpe:/a:debian:debian_linux:openssl, cpe:/o:centos:centos:7, p-cpe:/a:centos:centos:compat-openssl11, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:centos:centos:mingw32-openssl, p-cpe:/a:redhat:enterprise_linux:openssl, cpe:/o:debian:debian_linux:14.0

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-2025-69419