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FreeBSD : krb5 -- UDP ping-pong vulnerability in the kpasswd (password changing) service. [CVE-2002-2443] (e3f64457-cccd-11e2-af76-206a8a720317)

medium Nessus Plugin ID 66777

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Synopsis

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

Description

No advisory has been released yet.

schpw.c in the kpasswd service in kadmind in MIT Kerberos 5 (aka krb5) before 1.11.3 does not properly validate UDP packets before sending responses, which allows remote attackers to cause a denial of service (CPU and bandwidth consumption) via a forged packet that triggers a communication loop, as demonstrated by krb_pingpong.nasl, a related issue to CVE-1999-0103. [CVE-2002-2443].

Solution

Update the affected package.

See Also

http://web.mit.edu/kerberos/www/krb5-1.11/

http://www.nessus.org/u?c26750fe

Plugin Details

Severity: Medium

ID: 66777

File Name: freebsd_pkg_e3f64457cccd11e2af76206a8a720317.nasl

Version: 1.6

Type: local

Published: 6/4/2013

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:krb5, cpe:/o:freebsd:freebsd

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

Patch Publication Date: 6/3/2013

Vulnerability Publication Date: 5/10/2013

Reference Information

CVE: CVE-2002-2443