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TITLE:
mpg123 "utf8_ascii()" String Handling Vulnerability

SECUNIA ADVISORY ID:
SA41938

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/41938/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=41938

RELEASE DATE:
2010-10-27

DISCUSS ADVISORY:
http://secunia.com/advisories/41938/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/41938/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=41938

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
A vulnerability has been discovered in mpg123, which can be exploited
by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to an error within the "utf8_ascii()"
function in src/metaprint.c and can be exploited to cause a heap-based
buffer overflow by e.g. tricking a user into playing a specially
crafted MP3 file.

Successful exploitation requires a non-UTF-8 system.

NOTE: Secunia normally does not classify client crashes as a
vulnerability nor issue an advisory about it. However, the potential
impact of this issue may be more severe than currently believed.

The vulnerability is confirmed in version 1.12.4.

SOLUTION:
Update to version 1.12.5.

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Jakub Bogusz.

ORIGINAL ADVISORY:
http://www.mpg123.de/cgi-bin/news.cgi

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

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

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Definitions: (Criticality, Where etc.)
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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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