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[ GLSA 201401-05 ] ISC DHCP: Denial of Service
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PostPosted: Mon Jan 20, 2014 3:51 am    Post subject: [ GLSA 201401-05 ] ISC DHCP: Denial of Service Reply with quote

Gentoo Linux Security Advisory

Title: ISC DHCP: Denial of Service (GLSA 201401-05)
Severity: normal
Exploitable: remote
Date: January 06, 2014
Bug(s): #463848
ID: 201401-05

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.

Affected Packages

Package: net-misc/dhcp
Vulnerable: < 4.2.5_p1
Unaffected: >= 4.2.5_p1
Architectures: All supported architectures


Description

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


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.

Resolution

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


References

CVE-2013-2494
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