CVE-2006-10003
CriticalCVSS 9.8Exploitation Probability (EPSS)
Low risk42th percentile - higher than 42% of all known CVEs
Summary
XML::Parser versions through 2.47 for Perl have an off-by-one heap buffer overflow in st_serial_stack. The bug occurs when the stack is not expanded at the maximum size, causing a write outside the allocated buffer.
Risk Assessment
An attacker can exploit this vulnerability to execute arbitrary code or cause a denial of service by providing a specially crafted XML file with very deep element nesting.
Recommendation
Update XML::Parser to version 2.48 or later, which includes a fix for this vulnerability.
Original NVD description (English source)
XML::Parser versions through 2.47 for Perl has an off-by-one heap buffer overflow in st_serial_stack. In the case (stackptr == stacksize - 1), the stack will NOT be expanded. Then the new value will be written at location (++stackptr), which equals stacksize and therefore falls just outside the allocated buffer. The bug can be observed when parsing an XML file with very deep element nesting