FreeBSD : expat2 -- Parser crash with specially formatted UTF-8 sequences (5f030587-e39a-11de-881e-001aa0166822)

medium Nessus Plugin ID 43037
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.

Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

CVE reports :

The updatePosition function in lib/xmltok_impl.c in libexpat in Expat 2.0.1, as used in Python, PyXML, w3c-libwww, and other software, allows context-dependent attackers to cause a denial of service (application crash) via an XML document with crafted UTF-8 sequences that trigger a buffer over-read.

Solution

Update the affected packages.

See Also

http://www.nessus.org/u?19dfa5d4

Plugin Details

Severity: Medium

ID: 43037

File Name: freebsd_pkg_5f030587e39a11de881e001aa0166822.nasl

Version: 1.10

Type: local

Published: 12/8/2009

Updated: 1/6/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:expat2, p-cpe:/a:freebsd:freebsd:linux-f10-expat, cpe:/o:freebsd:freebsd

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

Patch Publication Date: 12/8/2009

Vulnerability Publication Date: 1/17/2009

Reference Information

CVE: CVE-2009-3720