|
PHP Multiple Vulnerabilities
|
|
Secunia Advisory:
|
SA32964
|
|
|
Release Date:
|
2008-12-04
|
|
Last Update:
|
2009-01-12
|
|
Popularity:
|
4,875 views
|
|
|
Critical:
|
Moderately critical
|
|
Impact:
|
Unknown
Security Bypass
DoS
System access
|
|
Where:
|
From remote
|
|
Solution Status:
|
Vendor Patch
|
|
| Software: | PHP 5.2.x
|
|
|
Secunia CVSS-2 Score:
|
Available in Secunia business solutions 
|
|
|
Subscribe:
|
Instant alerts on relevant vulnerabilities
|
|
| Advisory Content (Page 1 of 3) | [ 1 ] [ 2 ] [ 3 ] | |
|
Description:
Some vulnerabilities have been reported in PHP, where some have an unknown impact and others can be exploited by malicious people to cause a DoS (Denial of Service) or potentially compromise a vulnerable system, and by malicious, local users to bypass certain security restrictions.
1) An input validation error exists within the "ZipArchive::extractTo()" function when extracting ZIP archives. This can be exploited to extract files to arbitrary locations outside the specified directory via directory traversal sequences in a specially crafted ZIP archive.
2) An error in the included PCRE library can be exploited to cause a buffer overflow.
For more information:
SA30916
3) The "BG(page_uid)" and "BG(page_gid)" variables are not initialized, which can be exploited to bypass "safe_mode" restrictions.
4) An error when "safe_mode" is enabled through "php_admin_flag" can be exploited to bypass security restrictions and write to arbitrary local files via a custom "php_value error_log" .htaccess entry.
5) An error in the GD library can be exploited to cause a crash via a specially crafted font file.
This is related to vulnerability #2 in:
SA31409
6) An error exists in the handling of error conditions when processing unicode data within the "mbfl_filt_conv_html_dec()" function in mbfilter_htmlent.c. This can be exploited to cause a heap-based buffer overflow.
Successful exploitation may be possible from remote, but requires that the "mbstring" extension is configured to automatically filter request data.
NOTE: Additionally, a potential buffer overflow in the "memnstr()" function and crashes in the FastCGI functionality and the IMAP toolkit have been fixed.
The vulnerabilities are reported in version 5.2.6. Other versions may also be affected.
Change Page:
[ 1 ] [ 2 ] [ 3 ]
|
|
|
Track this Secunia Advisory
|
Customers of the Secunia Vulnerability Intelligence solutions will automatically receive updates when new information regarding this advisory is released.
Read more about our Vulnerability Intelligence solutions and what they can do for you and your company.
|
|
|
About this Secunia Advisory
|
Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
|
