Overly broad permissions can turn one compromised account into a much larger security problem. Learn how to reduce unnecessary access, review privileges, and apply least privilege across modern Linux systems. Review Linux Privileges×

Alerts This Week
Warning Icon 1 525
Alerts This Week
Warning Icon 1 525

Gentoo: GLSA-202303-10 High: BIND DNS Service Disruption

gentoo
Calendar Grey January 7, 2014
Scroller Gentoo
CVE-2023-XXXX ISC DHCP flaw in Gentoo's advisory GLSA 202301-01 highlights serious service disruption threats from memory overload attempts.
A memory exhaustion vulnerability in ISC DHCP could lead to Denial of Service.

Summary

ISC DHCP is vulnerable to a memory exhaustion attack involving regular expressions sent by DHCP clients.

Topics%20covered

Topics Covered

security advisory denial of service gentoo critical advisory memory exhaustion isc dhcp

Resolution

All ISC DHCP users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-misc/dhcp-4.2.5_p1"

References

[ 1 ] CVE-2013-2494 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-2494

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201401-05
style>.gentoo_availability{display:block;}

Concerns

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.

Severity
important
Lowest
Low
Medium
High
Critical

Severity: Normal
Title: ISC DHCP: Denial of Service
Date: January 06, 2014
Bugs: #463848
ID: 201401-05

Topics%20covered

Topics Covered

security advisory denial of service gentoo critical advisory memory exhaustion isc dhcp

Synopsis

A memory exhaustion vulnerability in ISC DHCP could lead to Denial of Service.

Background

ISC DHCP is a Dynamic Host Configuration Protocol (DHCP) client/server.

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-misc/dhcp < 4.2.5_p1 >= 4.2.5_p1

Impact

===== A remote attacker could send a specially crafted request from a malicious or spoofed client, potentially leading to a Denial of Service condition.

Workaround

There is no known workaround at this time.