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FreeBSD : Several vulnerabilities found in IcedTea-Web (55b498e2-e56c-11e1-bbd5-001c25e46b1d)

high Nessus Plugin ID 61522

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Synopsis

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

Description

The IcedTea project team reports :

CVE-2012-3422: Use of uninitialized instance pointers

An uninitialized pointer use flaw was found in IcedTea-Web web browser plugin. A malicious web page could use this flaw make IcedTea-Web browser plugin pass invalid pointer to a web browser. Depending on the browser used, it may cause the browser to crash or possibly execute arbitrary code.

The get_cookie_info() and get_proxy_info() call getFirstInTableInstance() with the instance_to_id_map hash as a parameter. If instance_to_id_map is empty (which can happen when plugin was recently removed), getFirstInTableInstance() returns an uninitialized pointer.

CVE-2012-3423: Incorrect handling of non 0-terminated strings

It was discovered that the IcedTea-Web web browser plugin incorrectly assumed that all strings provided by browser are NUL terminated, which is not guaranteed by the NPAPI (Netscape Plugin Application Programming Interface). When used in a browser that does not NUL terminate NPVariant NPStrings, this could lead to buffer over-read or over-write, resulting in possible information leak, crash, or code execution.

Mozilla browsers currently NUL terminate strings, however recent Chrome versions are known not to provide NUL terminated data.

Solution

Update the affected package.

See Also

http://www.nessus.org/u?8f9c1f1b

http://www.nessus.org/u?890ac3b4

Plugin Details

Severity: High

ID: 61522

File Name: freebsd_pkg_55b498e2e56c11e1bbd5001c25e46b1d.nasl

Version: 1.5

Type: local

Published: 8/14/2012

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.6

CVSS v2

Risk Factor: High

Base Score: 7.5

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:icedtea-web, cpe:/o:freebsd:freebsd

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

Patch Publication Date: 8/13/2012

Vulnerability Publication Date: 7/31/2012

Reference Information

CVE: CVE-2012-3422, CVE-2012-3423