GLSA-200910-01 : Wget: Certificate validation error

medium Nessus Plugin ID 42197
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The remote Gentoo host is missing one or more security-related patches.


The remote host is affected by the vulnerability described in GLSA-200910-01 (Wget: Certificate validation error)

The vendor reported that Wget does not properly handle Common Name (CN) fields in X.509 certificates that contain an ASCII NUL (\\0) character.
Specifically, the processing of such fields is stopped at the first occurrence of a NUL character. This type of vulnerability was recently discovered by Dan Kaminsky and Moxie Marlinspike.
Impact :

A remote attacker might employ a specially crafted X.509 certificate, containing a NUL character in the Common Name field to conduct man-in-the-middle attacks on SSL connections made using Wget.
Workaround :

There is no known workaround at this time.


All Wget users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=net-misc/wget-1.12'

See Also

Plugin Details

Severity: Medium

ID: 42197

File Name: gentoo_GLSA-200910-01.nasl

Version: 1.15

Type: local

Published: 10/22/2009

Updated: 1/6/2021

Dependencies: ssh_get_info.nasl

Risk Information


Risk Factor: Medium

Score: 5.9


Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

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

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:wget, 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: 10/20/2009

Reference Information

CVE: CVE-2009-3490

BID: 36205

GLSA: 200910-01

CWE: 310