GLSA-200404-03 : Tcpdump Vulnerabilities in ISAKMP Parsing

high Nessus Plugin ID 14468

Synopsis

The remote Gentoo host is missing one or more security-related patches.

Description

The remote host is affected by the vulnerability described in GLSA-200404-03 (Tcpdump Vulnerabilities in ISAKMP Parsing)

There are two specific vulnerabilities in tcpdump, outlined in [ reference 1 ]. In the first scenario, an attacker may send a specially crafted ISAKMP Delete packet which causes tcpdump to read past the end of its buffer. In the second scenario, an attacker may send an ISAKMP packet with the wrong payload length, again causing tcpdump to read past the end of a buffer.
Impact :

Remote attackers could potentially cause tcpdump to crash or execute arbitrary code as the 'pcap' user.
Workaround :

There is no known workaround at this time. All tcpdump users are encouraged to upgrade to the latest available version.

Solution

All tcpdump users should upgrade to the latest available version.
ADDITIONALLY, the net-libs/libpcap package should be upgraded.
# emerge sync # emerge -pv '>=net-libs/libpcap-0.8.3-r1' '>=net-analyzer/tcpdump-3.8.3-r1' # emerge '>=net-libs/libpcap-0.8.3-r1' '>=net-analyzer/tcpdump-3.8.3-r1'

See Also

https://help.rapid7.com/?community#/?tags=disclosure

https://access.redhat.com/errata/RHSA-2004:008

https://security.gentoo.org/glsa/200404-03

Plugin Details

Severity: High

ID: 14468

File Name: gentoo_GLSA-200404-03.nasl

Version: 1.17

Type: local

Published: 8/30/2004

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: High

Base Score: 7.5

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

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:libpcap, p-cpe:/a:gentoo:linux:tcpdump, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Patch Publication Date: 3/31/2004

Reference Information

CVE: CVE-2003-0989

GLSA: 200404-03