GLSA-200904-05 : ntp: Certificate validation error

medium Nessus Plugin ID 36093
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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-200904-05 (ntp: Certificate validation error)

It has been reported that ntp incorrectly checks the return value of the EVP_VerifyFinal(), a vulnerability related to CVE-2008-5077 (GLSA 200902-02).
Impact :

A remote attacker could exploit this vulnerability to spoof arbitrary names to conduct Man-In-The-Middle attacks and intercept sensitive information.
Workaround :

There is no known workaround at this time.

Solution

All ntp users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=net-misc/ntp-4.2.4_p6'

See Also

https://security.gentoo.org/glsa/200902-02

https://security.gentoo.org/glsa/200904-05

Plugin Details

Severity: Medium

ID: 36093

File Name: gentoo_GLSA-200904-05.nasl

Version: 1.22

Type: local

Published: 4/7/2009

Updated: 1/6/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 4

CVSS v2

Risk Factor: Medium

Base Score: 5.8

Temporal Score: 4.3

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

Temporal Vector: E:U/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:ntp, cpe:/o:gentoo:linux

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

Exploit Ease: No known exploits are available

Patch Publication Date: 4/5/2009

Reference Information

CVE: CVE-2008-5077, CVE-2009-0021

BID: 33150

GLSA: 200904-05

CWE: 20, 287