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ez-ipupdate: Format string vulnerability


1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200411-20 / ez-ipupdate
Release Date November 11, 2004
Latest Revision November 11, 2004: 01
Impact high
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
net-dns/ez-ipupdate <= 3.0.11_beta8 >= 3.0.11_beta8-r1 All supported architectures

Related bugreports: #69658


ez-ipupdate contains a format string vulnerability that could lead to execution of arbitrary code.

2.  Impact Information


ez-ipupdate is a utility for updating host name information for a large number of dynamic DNS services.


Ulf Harnhammar from the Debian Security Audit Project discovered a format string vulnerability in ez-ipupdate.


An attacker could exploit this to execute arbitrary code with the permissions of the user running ez-ipupdate, which could be the root user.

3.  Resolution Information


There is no known workaround at this time.


All ez-ipupdate users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-dns/ez-ipupdate-3.0.11_beta8-r1"

4.  References


Page updated November 11, 2004

Summary: This is a Gentoo Linux Security Advisory

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