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Test ID:1.3.6.1.4.1.25623.1.0.883350
Category:CentOS Local Security Checks
Title:CentOS: Security Advisory for dhclient (CESA-2021:2357)
Summary:The remote host is missing an update for the 'dhclient'; package(s) announced via the CESA-2021:2357 advisory.
Description:Summary:
The remote host is missing an update for the 'dhclient'
package(s) announced via the CESA-2021:2357 advisory.

Vulnerability Insight:
The Dynamic Host Configuration Protocol (DHCP) is a protocol that allows
individual devices on an IP network to get their own network configuration
information, including an IP address, a subnet mask, and a broadcast
address. The dhcp packages provide a relay agent and ISC DHCP service
required to enable and administer DHCP on a network.

Security Fix(es):

* 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)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.

Affected Software/OS:
'dhclient' package(s) on CentOS 7.

Solution:
Please install the updated package(s).

CVSS Score:
3.3

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

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2021-25217
https://kb.isc.org/docs/cve-2021-25217
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Z2LB42JWIV4M4WDNXX5VGIP26FEYWKIF/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5QI4DYC7J4BGHEW3NH4XHMWTHYC36UK4/
https://security.gentoo.org/glsa/202305-22
https://lists.debian.org/debian-lts-announce/2021/06/msg00002.html
http://www.openwall.com/lists/oss-security/2021/05/26/6
CopyrightCopyright (C) 2021 Greenbone Networks GmbH

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