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


A step-by-step discussion of the latest Flash Player 0-day exploit:
http://secunia.com/blog/210


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

TITLE:
Apple Safari Two Vulnerabilities

SECUNIA ADVISORY ID:
SA44151

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/44151/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=44151

RELEASE DATE:
2011-04-16

DISCUSS ADVISORY:
http://secunia.com/advisories/44151/#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/44151/

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=44151

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:
Two vulnerabilities have been reported in Apple Safari, which can be
exploited by malicious people to compromise a user's system.

1) An integer overflow error exists within WebKit.

For more information:
SA43748

2) A use-after-free error within WebKit when handling WBR tags can
result in an invalid pointer being dereferenced when a user views a
specially crafted web page.

Successful exploitation of the vulnerabilities allows execution of
arbitrary code.

The vulnerabilities are reported in versions prior to 5.0.5.

SOLUTION:
Update to version 5.0.5.

PROVIDED AND/OR DISCOVERED BY:
1) Vincenzo Iozzo, Willem Pinckaers, and Ralf-Philipp Weinmann via
ZDI.
2) Vupen via ZDI. The vendor also credits Martin Barbella.

ORIGINAL ADVISORY:
Apple:
http://support.apple.com/kb/HT4596

ZDI:
http://www.zerodayinitiative.com/advisories/ZDI-11-104/
http://www.zerodayinitiative.com/advisories/ZDI-11-135/

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/

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

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.

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

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

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