- Vulnerabilities 85,024
Debian Security Advisory DSA 3251-1 (dnsmasq - security update)
Published: 2015-05-04 22:00:00
CVE Author: NIST National Vulnerability Database
CVSS Base Vector:
AV:N/AC:L/Au:N/C:P/I:N/A:P
Solution Type:
Vendor Patch
Detection Type:
Linux Distribution Package
Affected Versions:
dnsmasq on Debian Linux
Recommendations:
For the oldstable distribution
(wheezy), this problem has been fixed in version 2.62-3+deb7u2.
For the stable distribution (jessie), this problem has been fixed in
version 2.72-3+deb8u1.
For the testing distribution (stretch) and the unstable distribution
(sid), this problem will be fixed soon.
We recommend that you upgrade your dnsmasq Linux Distribution Packages.
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.
Detection Method:
This check tests the installed software
version using the apt Linux Distribution Package manager.
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