Joined: 12 May 2004
|Posted: Sun Jul 29, 2007 12:26 am Post subject: [ GLSA 200707-14 ] tcpdump: Integer overflow
|Gentoo Linux Security Advisory
Title: tcpdump: Integer overflow (GLSA 200707-14)
Date: July 28, 2007
A vulnerability has been discovered in tcpdump, allowing for the execution of arbitrary code, possibly with root privileges.
tcpdump is a tool for capturing and inspecting network traffic.
Vulnerable: < 3.9.5-r3
Unaffected: >= 3.9.5-r3
Architectures: All supported architectures
mu-b from Digital Labs discovered that the return value of a snprintf() call is not properly checked before being used. This could lead to an integer overflow.
A remote attacker could send specially crafted BGP packets on a network being monitored with tcpdump, possibly resulting in the execution of arbitrary code with the privileges of the user running tcpdump, which is usually root.
There is no known workaround at this time.
All tcpdump users should upgrade to the latest version:
|# emerge --sync
# emerge --ask --oneshot --verbose ">=net-analyzer/tcpdump-3.9.5-r3"
Last edited by GLSA on Sat Feb 14, 2009 4:19 am; edited 2 times in total