Explore top 10 tips to secure your open-source projects now. Read More

×
Alerts This Week
Warning Icon 1 454
Alerts This Week
Warning Icon 1 454

Debian DSA-3251-2 Critical Advisory: Dnsmasq Regression Fix

debian
Calendar Grey May 7, 2015
Debian Logo
Notification regarding dnsmasq address concerns stemming from DSA-3251-1, affecting armel and armhf architectures on Debian distributions.
The update for dnsmasq issued as DSA-3251-1 introduced a regression for the armel and armhf builds causing dnsmasq failing to start under certain configurations
Topics%20covered

Topics Covered

security advisory critical debian regression dnsmasq armel armhf

Summary

Nick Sampanis discovered that dnsmasq, a small caching DNS proxy and
DHCP/TFTP server, did not properly check the return value of the
setup_reply() function called during a TCP connection, which is used
then as a size argument in a function which writes data on the client's
connection. A remote attacker could exploit this issue via a specially
crafted DNS request to cause dnsmasq to crash, or potentially to obtain
sensitive information from process memory.

For the oldstable distribution (wheezy), this problem has been fixed
in version 2.62-3+deb7u3.

We recommend that you upgrade your dnsmasq packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/



Severity
critical
Lowest
Low
Medium
High
Critical

Topics%20covered

Topics Covered

security advisory critical debian regression dnsmasq armel armhf

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.