Detections
Analytics

Ubuntu 25.04 : PCRE2 vulnerability (USN-7777-1)

medium Nessus Plugin ID 265970

Language:

Synopsis

The remote Ubuntu host is missing a security update.

Description

The remote Ubuntu 25.04 host has packages installed that are affected by a vulnerability as referenced in the USN-7777-1 advisory.

 It was discovered that PCRE2 incorrectly handled the Scan SubString verb. An attacker could possibly use this issue to cause applications using PCRE2 to expose sensitive information.

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

Note that Nessus has not tested for this issue 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-7777-1

Plugin Details

Severity: Medium

ID: 265970

File Name: ubuntu_USN-7777-1.nasl

Version: 1.1

Type: local

Agent: unix

Published: 9/26/2025

Updated: 9/26/2025

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7.4

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

CVSS Score Source: CVE-2025-58050

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 8.2

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

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

CVSS v4

Risk Factor: Medium

Base Score: 6.9

Threat Score: 5.5

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:L/SI:N/SA:L

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libpcre2-32-0, p-cpe:/a:canonical:ubuntu_linux:libpcre2-8-0, p-cpe:/a:canonical:ubuntu_linux:libpcre2-dev, cpe:/o:canonical:ubuntu_linux:25.04, p-cpe:/a:canonical:ubuntu_linux:libpcre2-16-0, p-cpe:/a:canonical:ubuntu_linux:libpcre2-posix3, p-cpe:/a:canonical:ubuntu_linux:pcre2-utils

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: 9/25/2025

Vulnerability Publication Date: 8/27/2025

Reference Information

CVE: CVE-2025-58050

USN: 7777-1