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PHP Security Update Fixes Multiple Integer Overflow and Security Bypass


Title : PHP Security Update Fixes Multiple Integer Overflow and Security Bypass
Advisory ID : FrSIRT/ADV-2008-0059
CVE ID : CVE-2007-3378 - CVE-2008-0145
Rated as : Moderate Risk 
Remotely Exploitable : Yes
Locally Exploitable : Yes
Release Date : 2008-01-08

Advisory Details

 
  Description
  Affected Products
  Solution
  References
Technical Description    Receive FrSIRT alerts in a Text format  Receive FrSIRT alerts in a PDF format  Receive FrSIRT alerts in an XML format  Receive FrSIRT notifications by SMS 

Multiple vulnerabilities have been identified in PHP, which could be exploited by attackers to bypass security restrictions, cause a denial of service or compromise a vulnerable web server.

The first issue is caused by an integer overflow error in the "chunk_split()" function, which could be exploited by attackers to crash an affected application or execute arbitrary code.

The second vulnerability is caused by an integer overflow error in the "strspn()" and "strcspn()" functions, which could be exploited by attackers to crash an affected application or execute arbitrary code.

The third issue is caused by a regression in "glob()" when "open_basedir" is enabled.

The fourth vulnerability is caused by an error in the "money_format()" function when handling multiple "%i" or "%n" tokens.

The fifth issue is caused by an error within the handling of the "INFILE LOCAL" option with MySQL, which could be exploited to bypass "open_basedir" and "safe_mode" restrictions.

The sixth vulnerability is caused by an error within the handling of the "session.save_path" and "error_log" values, which could be exploited to bypass "open_basedir" and "safe_mode" restrictions.

Credits

Vulnerabilities reported by Gerhard Wagner and the vendor.

ChangeLog

2008-01-08 : Initial release

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