Test Kennung:	1.3.6.1.4.1.25623.1.0.71878
Kategorie:	Red Hat Local Security Checks
Titel:	RedHat Security Advisory RHSA-2011:0840
Zusammenfassung:	NOSUMMARY
Beschreibung:	Description: The remote host is missing updates announced in advisory RHSA-2011:0840. 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. It was discovered that the DHCP client daemon, dhclient, did not sufficiently sanitize certain options provided in DHCP server replies, such as the client hostname. A malicious DHCP server could send such an option with a specially-crafted value to a DHCP client. If this option's value was saved on the client system, and then later insecurely evaluated by a process that assumes the option is trusted, it could lead to arbitrary code execution with the privileges of that process. (CVE-2011-0997) Red Hat would like to thank Sebastian Krahmer of the SuSE Security Team for reporting this issue. All dhclient users should upgrade to these updated packages, which contain a backported patch to correct this issue. Solution: Please note that this update is available via Red Hat Network. To use Red Hat Network, launch the Red Hat Update Agent with the following command: up2date http://rhn.redhat.com/errata/RHSA-2011-0840.html Risk factor : High
Querverweis:	Common Vulnerability Exposure (CVE) ID: CVE-2011-0997 BugTraq ID: 47176 http://www.securityfocus.com/bid/47176 CERT/CC vulnerability note: VU#107886 http://www.kb.cert.org/vuls/id/107886 Debian Security Information: DSA-2216 (Google Search) http://www.debian.org/security/2011/dsa-2216 Debian Security Information: DSA-2217 (Google Search) http://www.debian.org/security/2011/dsa-2217 https://www.exploit-db.com/exploits/37623/ http://lists.fedoraproject.org/pipermail/package-announce/2011-April/057888.html http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058279.html http://security.gentoo.org/glsa/glsa-201301-06.xml HPdes Security Advisory: HPSBMU02752 http://marc.info/?l=bugtraq&m=133226187115472&w=2 HPdes Security Advisory: SSRT100802 http://www.mandriva.com/security/advisories?name=MDVSA-2011:073 http://www.osvdb.org/71493 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12812 http://www.redhat.com/support/errata/RHSA-2011-0428.html http://www.redhat.com/support/errata/RHSA-2011-0840.html http://securitytracker.com/id?1025300 http://secunia.com/advisories/44037 http://secunia.com/advisories/44048 http://secunia.com/advisories/44089 http://secunia.com/advisories/44090 http://secunia.com/advisories/44103 http://secunia.com/advisories/44127 http://secunia.com/advisories/44180 http://slackware.com/security/viewer.php?l=slackware-security&y=2011&m=slackware-security.593345 http://www.ubuntu.com/usn/USN-1108-1 http://www.vupen.com/english/advisories/2011/0879 http://www.vupen.com/english/advisories/2011/0886 http://www.vupen.com/english/advisories/2011/0909 http://www.vupen.com/english/advisories/2011/0915 http://www.vupen.com/english/advisories/2011/0926 http://www.vupen.com/english/advisories/2011/0965 http://www.vupen.com/english/advisories/2011/1000 XForce ISS Database: iscdhcp-dhclient-command-execution(66580) https://exchange.xforce.ibmcloud.com/vulnerabilities/66580
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