Debian DSA-4151-1 : librelp - security update

critical Nessus Plugin ID 108611

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Synopsis

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

Description

Bas van Schaik and Kevin Backhouse discovered a stack-based buffer overflow vulnerability in librelp, a library providing reliable event logging over the network, triggered while checking x509 certificates from a peer. A remote attacker able to connect to rsyslog can take advantage of this flaw for remote code execution by sending a specially crafted x509 certificate.

Details can be found in the upstream advisory:
https://www.rsyslog.com/cve-2018-1000140/

Solution

Upgrade the librelp packages.

For the oldstable distribution (jessie), this problem has been fixed in version 1.2.7-2+deb8u1.

For the stable distribution (stretch), this problem has been fixed in version 1.2.12-1+deb9u1.

Plugin Details

Severity: Critical

ID: 108611

File Name: debian_DSA-4151.nasl

Version: 1.7

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 3/27/2018

Updated: 12/6/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, 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-2018-1000140

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: p-cpe:/a:debian:debian_linux:librelp, cpe:/o:debian:debian_linux:8.0, cpe:/o:debian:debian_linux:9.0

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: 3/26/2018

Reference Information

CVE: CVE-2018-1000140

DSA: 4151

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