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Joined: 12 May 2004
Posts: 2296

PostPosted: Sat Jun 18, 2016 4:26 pm    Post subject: [ GLSA 201606-07 ] dhcpcd Reply with quote

Gentoo Linux Security Advisory

Title: dhcpcd: Multiple vulnerabilities (GLSA 201606-07)
Severity: normal
Exploitable: remote
Date: June 18, 2016
Bug(s): #571152
ID: 201606-07


Multiple vulnerabilities have been found in dhcpcd allowing remote
attackers to possibly execute arbitrary code or cause a Denial of Service.


A fully featured, yet light weight RFC2131 compliant DHCP client

Affected Packages

Package: net-misc/dhcpcd
Vulnerable: < 6.10.0
Unaffected: >= 6.10.0
Architectures: All supported architectures


A heap overflow can be triggered via malformed DHCP responses in the
print_option (via dhcp_envoption1) due to incorrect option length values.
These vulnerabilities could also allow remote attackers to trigger an
invalid read/crash via malformed DHCP responses.


Remote attackers could possibly execute arbitrary code with the
privileges of the process or cause Denial of Service.


There is no known workaround at this time.


All dhcpcd users should upgrade to the latest version:
# emerge --sync
      # emerge --ask --oneshot --verbose ">=net-misc/dhcpcd-6.10.0”



Last edited by GLSA on Sun Jun 19, 2016 4:17 am; edited 1 time in total
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