Zero-friction vulnerability management platform

Mageni eases for you the vulnerability scanning, assessment, and management process. It is free and open-source.

Install Now

Available for macOS, Windows, and Linux

App screenshot

CentOS Update for dnsmasq CESA-2009:1238 centos5 i386

Information

Severity

Severity

Medium

Family

Family

CentOS Local Security Checks

CVSSv2 Base

CVSSv2 Base

6.8

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:M/Au:N/C:P/I:P/A:P

Solution Type

Solution Type

Vendor Patch

Created

Created

10 years ago

Modified

Modified

3 years ago

Summary

The remote host is missing an update for the 'dnsmasq' package(s) announced via the referenced advisory.

Insight

Insight

Dnsmasq is a lightweight and easy to configure DNS forwarder and DHCP server. Core Security Technologies discovered a heap overflow flaw in dnsmasq when the TFTP service is enabled (the '--enable-tftp' command line option, or by enabling 'enable-tftp' in '/etc/dnsmasq.conf'). If the configured tftp-root is sufficiently long, and a remote user sends a request that sends a long file name, dnsmasq could crash or, possibly, execute arbitrary code with the privileges of the dnsmasq service (usually the unprivileged 'nobody' user). (CVE-2009-2957) A NULL pointer dereference flaw was discovered in dnsmasq when the TFTP service is enabled. This flaw could allow a malicious TFTP client to crash the dnsmasq service. (CVE-2009-2958) Note: The default tftp-root is '/var/ftpd', which is short enough to make it difficult to exploit the CVE-2009-2957 issue. If a longer directory name is used, arbitrary code execution may be possible. As well, the dnsmasq package distributed by Red Hat does not have TFTP support enabled by default. All users of dnsmasq should upgrade to this updated package, which contains a backported patch to correct these issues. After installing the updated package, the dnsmasq service must be restarted for the update to take effect.

Affected Software

Affected Software

dnsmasq on CentOS 5

Solution

Solution

Please install the updated packages.

Common Vulnerabilities and Exposures (CVE)