10 - USN-40-1

Executive Summary

Summary
Title	PHP vulnerabilities

Informations
Name	USN-40-1	First vendor Publication	2004-12-16
Vendor	Ubuntu	Last vendor Modification	2004-12-16
Severity (Vendor)	N/A	Revision	N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score	NA
Base Score	NA	Environmental Score	NA
impact SubScore	NA	Temporal Score	NA
Exploitabality Sub Score	NA

Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:C/I:C/A:C)
Cvss Base Score	10	Attack Range	Network
Cvss Impact Score	10	Attack Complexity	Low
Cvss Expoit Score	10	Authentication	None Required
Calculate full CVSS 2.0 Vectors scores

Detail

A security issue affects the following Ubuntu releases:

Ubuntu 4.10 (Warty Warthog)

The following packages are affected:

libapache2-mod-php4 php4 php4-cgi

The problem can be corrected by upgrading the affected package to version 4:4.3.8-3ubuntu7.1. After performing a standard system upgrade you need to reload the PHP module in the webserver by executing

sudo /etc/init.d/apache2 reload

to effect the necessary changes.

Details follow:

Stefan Esser reported several buffer overflows in PHP's variable unserializing handling. These could allow an attacker to execute arbitrary code on the server with the PHP interpreter's privileges by sending specially crafted input strings (form data, cookie values, and similar).

Additionally, Ilia Alshanetsky discovered a buffer overflow in the exif_read_data() function. Attackers could execute arbitrary code on the server by sending a JPEG image with a very long "sectionname" value to PHP applications that support image uploads.