Debian DSA-4632-1 : ppp - security update

critical Nessus Plugin ID 133880

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Synopsis

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

Description

Ilja Van Sprundel reported a logic flaw in the Extensible Authentication Protocol (EAP) packet parser in the Point-to-Point Protocol Daemon (pppd). An unauthenticated attacker can take advantage of this flaw to trigger a stack-based buffer overflow, leading to denial of service (pppd daemon crash).

Solution

Upgrade the ppp packages.

For the oldstable distribution (stretch), this problem has been fixed in version 2.4.7-1+4+deb9u1.

For the stable distribution (buster), this problem has been fixed in version 2.4.7-2+4.1+deb10u1.

Plugin Details

Severity: Critical

ID: 133880

File Name: debian_DSA-4632.nasl

Version: 1.6

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 2/24/2020

Updated: 3/26/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2020-8597

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:10.0, cpe:/o:debian:debian_linux:9.0, p-cpe:/a:debian:debian_linux:ppp

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/22/2020

Vulnerability Publication Date: 2/3/2020

Reference Information

CVE: CVE-2020-8597

DSA: 4632

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