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GLSA
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Joined: 12 May 2004
Posts: 2189

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

Synopsis

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


Background

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


Description

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.


Impact

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


Workaround

There is no known workaround at this time.

Resolution

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


References

CVE-2016-1503
CVE-2016-1504


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