Debian dla-3198 : php-phpseclib - security update

high Nessus Plugin ID 167912

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Synopsis

The remote Debian host is missing a security-related update.

Description

The remote Debian 10 host has a package installed that is affected by a vulnerability as referenced in the dla-3198 advisory.

- ------------------------------------------------------------------------- Debian LTS Advisory DLA-3198-1 [email protected] https://www.debian.org/lts/security/ Sylvain Beucler November 17, 2022 https://wiki.debian.org/LTS
- -------------------------------------------------------------------------

Package : php-phpseclib Version : 2.0.30-2~deb10u1 CVE ID : CVE-2021-30130

It was discovered that php-phpseclib, a pure-PHP implementation of various cryptographic and arithmetic algorithms (v2), mishandles RSA PKCS#1 v1.5 signature verification. An attacker may get invalid signatures accepted, bypassing authorization control in specific situations.

For Debian 10 buster, this problem has been fixed in version 2.0.30-2~deb10u1.

We recommend that you upgrade your php-phpseclib packages.

For the detailed security status of php-phpseclib please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/php-phpseclib

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian 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

Upgrade the php-phpseclib packages.

Plugin Details

Severity: High

ID: 167912

File Name: debian_DLA-3198.nasl

Version: 1.3

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 11/18/2022

Updated: 1/22/2025

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2021-30130

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:10.0, p-cpe:/a:debian:debian_linux:php-phpseclib

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/17/2022

Vulnerability Publication Date: 4/6/2021

Reference Information

CVE: CVE-2021-30130

Detections

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