FreeBSD : FreeBSD -- Buffer overflow in tcpdump(1) (2dc764fa-40c0-11dc-aeac-02e0185f8d72)

Medium Nessus Plugin ID 25833


The remote FreeBSD host is missing a security-related update.


An un-checked return value in the BGP dissector code can result in an integer overflow. This value is used in subsequent buffer management operations, resulting in a stack based buffer overflow under certain circumstances. Impact : By crafting malicious BGP packets, an attacker could exploit this vulnerability to execute code or crash the tcpdump process on the target system. This code would be executed in the context of the user running tcpdump(1). It should be noted that tcpdump(1) requires privileges in order to open live network interfaces. Workaround : No workaround is available.


Update the affected package.

See Also

Plugin Details

Severity: Medium

ID: 25833

File Name: freebsd_pkg_2dc764fa40c011dcaeac02e0185f8d72.nasl

Version: $Revision: 1.10 $

Type: local

Published: 2007/08/02

Modified: 2015/03/19

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 6.8

Temporal Score: 5.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Temporal Vector: CVSS2#E:POC/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:tcpdump, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2007/08/02

Vulnerability Publication Date: 2007/08/01

Reference Information

CVE: CVE-2007-3798

BID: 24965

OSVDB: 38213

FreeBSD: SA-07:06.tcpdump

CWE: 189