USN-10-1: XML library vulnerabilities
Several buffer overflows have been discovered in libxml2's FTP connection and DNS resolution functions. Supplying very long FTP URLs or IP addresses might result in execution of arbitrary code with the privileges of the process using libxml2. Since libxml2 is used in packages like php4-imagick, the vulnerability also might lead to privilege escalation, like executing attacker supplied code with a web server's privileges. However, this does not affect the core XML parsing code, which is what the majority of programs use this library for.
Affected Software
Event History
Frequently Asked Questions
What is the severity of USN-10-1?
The severity of USN-10-1 is considered critical due to potential arbitrary code execution.
How do I fix USN-10-1?
To fix USN-10-1, update the libxml2 package to the latest version provided by your Ubuntu distribution.
What are the affected versions in USN-10-1?
USN-10-1 affects libxml2 versions before the patch, which includes the library used in Ubuntu 4.10.
What types of vulnerabilities are described in USN-10-1?
USN-10-1 describes buffer overflow vulnerabilities in libxml2's FTP connection and DNS resolution functions.
Can USN-10-1 lead to remote attacks?
Yes, USN-10-1 can lead to remote attacks if an attacker supplies crafted long FTP URLs or IP addresses.