Scientific Linux Security Update : dhcp on SL7.x i686/x86_64 (2021:2357)

high Nessus Plugin ID 150760

Synopsis

The remote Scientific Linux host is missing one or more security updates.

Description

The remote Scientific Linux 7 host has packages installed that are affected by a vulnerability as referenced in the SLSA-2021:2357-1 advisory.

- dhcp: stack-based buffer overflow when parsing statements with colon- separated hex digits in config or lease files in dhcpd and dhclient (CVE-2021-25217)

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://www.scientificlinux.org/category/sl-errata/slsa-20212357-1

Plugin Details

Severity: High

ID: 150760

File Name: sl_20210609_dhcp_on_SL7_x.nasl

Version: 1.2

Type: local

Agent: unix

Published: 6/14/2021

Updated: 6/14/2021

Supported Sensors: Nessus Agent

Risk Information

CVSS Score Source: CVE-2021-25217

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Low

Base Score: 3.3

Temporal Score: 2.4

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

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3

Risk Factor: High

Base Score: 7.4

Temporal Score: 6.4

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

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

Vulnerability Information

CPE: cpe:/o:fermilab:scientific_linux, p-cpe:/a:fermilab:scientific_linux:dhclient, p-cpe:/a:fermilab:scientific_linux:dhcp, p-cpe:/a:fermilab:scientific_linux:dhcp-common, p-cpe:/a:fermilab:scientific_linux:dhcp-debuginfo, p-cpe:/a:fermilab:scientific_linux:dhcp-devel, p-cpe:/a:fermilab:scientific_linux:dhcp-libs

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/RedHat/release, Host/RedHat/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 6/9/2021

Vulnerability Publication Date: 5/26/2021

Reference Information

CVE: CVE-2021-25217

IAVB: 2021-B-0032

RHSA: RHSA-2021:2357