Mandriva Linux Security Advisory : libneon0.27 (MDVSA-2009:221)

medium Nessus Plugin ID 40764
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.


The remote Mandriva Linux host is missing one or more security updates.


Multiple vulnerabilities has been found and corrected in libneon0.27 :

neon before 0.28.6, when expat is used, does not properly detect recursion during entity expansion, which allows context-dependent attackers to cause a denial of service (memory and CPU consumption) via a crafted XML document containing a large number of nested entity references, a similar issue to CVE-2003-1564 (CVE-2009-2473).

neon before 0.28.6, when OpenSSL is used, does not properly handle a '�' (NUL) character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408 (CVE-2009-2474).

This update provides a solution to these vulnerabilities.


Update the affected packages.

Plugin Details

Severity: Medium

ID: 40764

File Name: mandriva_MDVSA-2009-221.nasl

Version: 1.20

Type: local

Published: 8/25/2009

Updated: 1/6/2021

Dependencies: ssh_get_info.nasl

Risk Information


Risk Factor: Medium

Score: 5.5


Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

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

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

Vulnerability Information

CPE: p-cpe:/a:mandriva:linux:lib64neon0.27, p-cpe:/a:mandriva:linux:lib64neon0.27-devel, p-cpe:/a:mandriva:linux:lib64neon0.27-static-devel, p-cpe:/a:mandriva:linux:libneon0.27, p-cpe:/a:mandriva:linux:libneon0.27-devel, p-cpe:/a:mandriva:linux:libneon0.27-static-devel, cpe:/o:mandriva:linux:2008.1, cpe:/o:mandriva:linux:2009.0, cpe:/o:mandriva:linux:2009.1

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/Mandrake/release, Host/Mandrake/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/24/2009

Reference Information

CVE: CVE-2009-2473, CVE-2009-2474

BID: 36079, 36080

MDVSA: 2009:221

CWE: 310, 399