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Secunia Security Advisory 23492

Secunia Security Advisory 23492
Posted Dec 27, 2006
Authored by Secunia | Site secunia.com

Secunia Security Advisory - A vulnerability has been reported in w3m, which potentially can be exploited by malicious people to compromise a user's system.

tags | advisory
SHA-256 | c8ffdf713c169dbe29016d02eb30ca44771ee29220616a89bdff05d4b05de3a1

Secunia Security Advisory 23492

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Secunia is proud to announce the availability of the Secunia Software
Inspector.

The Secunia Software Inspector is a free service that detects insecure
versions of software that you may have installed in your system. When
insecure versions are detected, the Secunia Software Inspector also
provides thorough guidelines for updating the software to the latest
secure version from the vendor.

Try it out online:
http://secunia.com/software_inspector/

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TITLE:
w3m Certificate Handling Format String Vulnerability

SECUNIA ADVISORY ID:
SA23492

VERIFY ADVISORY:
http://secunia.com/advisories/23492/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
w3m 0.x
http://secunia.com/product/12960/

DESCRIPTION:
A vulnerability has been reported in w3m, which potentially can be
exploited by malicious people to compromise a user's system.

The vulnerability is caused due to a format string error when
handling SSL certificates and can be exploited via a specially
crafted SSL certificate containing format specifiers in the "CN"
field.

Successful exploitation may allow execution of arbitrary code when
e.g. visiting a malicious website, but requires that the application
is running with either the "-dump" or "-backend" option.

The vulnerability is reported in version 0.5.1. Other versions may
also be affected.

SOLUTION:
Only visit trusted sites when running with the "-backend" or "-dump"
options.

PROVIDED AND/OR DISCOVERED BY:
Reported by an anonymous person.

ORIGINAL ADVISORY:
http://sourceforge.net/tracker/index.php?func=detail&aid=1612792&group_id=39518&atid=425439

----------------------------------------------------------------------

About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

----------------------------------------------------------------------

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