Gentoo: GLSA-201401-05: ISC DHCP: Denial of Service
Summary
ISC DHCP is vulnerable to a memory exhaustion attack involving regular expressions sent by DHCP clients.
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
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.
![Dist Gentoo](/images/distros/dist-gentoo.png)
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 / 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.