GLSA Advocate
Joined: 12 May 2004 Posts: 2663
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Posted: Sun Jul 29, 2007 12:26 am Post subject: [ GLSA 200707-14 ] tcpdump: Integer overflow |
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Gentoo Linux Security Advisory
Title: tcpdump: Integer overflow (GLSA 200707-14)
Severity: high
Exploitable: remote
Date: July 28, 2007
Bug(s): #184815
ID: 200707-14
Synopsis
A vulnerability has been discovered in tcpdump, allowing for the execution of arbitrary code, possibly with root privileges.
Background
tcpdump is a tool for capturing and inspecting network traffic.
Affected Packages
Package: net-analyzer/tcpdump
Vulnerable: < 3.9.5-r3
Unaffected: >= 3.9.5-r3
Architectures: All supported architectures
Description
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.
Impact
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.
Workaround
There is no known workaround at this time.
Resolution
All tcpdump users should upgrade to the latest version: Code: | # emerge --sync
# emerge --ask --oneshot --verbose ">=net-analyzer/tcpdump-3.9.5-r3" |
References
CVE-2007-3798
Last edited by GLSA on Sat Feb 14, 2009 4:19 am; edited 2 times in total |
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