Описание
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
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
Ссылки
- https://nvd.nist.gov/vuln/detail/CVE-2006-10003
- https://github.com/cpan-authors/XML-Parser/issues/39
- https://github.com/cpan-authors/XML-Parser/commit/3eb9cc95420fa0c3f76947c4708962546bf27cfd.patch
- https://security.access.redhat.com/data/csaf/v2/vex/2006/cve-2006-10003.json
- https://rt.cpan.org/Ticket/Display.html?id=19860
- https://lists.debian.org/debian-lts-announce/2026/04/msg00002.html
- https://bugzilla.redhat.com/show_bug.cgi?id=2448999
- https://access.redhat.com/security/cve/CVE-2006-10003
- https://access.redhat.com/errata/RHSA-2026:9605
- https://access.redhat.com/errata/RHSA-2026:9259
- https://access.redhat.com/errata/RHSA-2026:9258
- https://access.redhat.com/errata/RHSA-2026:9246
- https://access.redhat.com/errata/RHSA-2026:9110
- https://access.redhat.com/errata/RHSA-2026:8610
- https://access.redhat.com/errata/RHSA-2026:8609
- https://access.redhat.com/errata/RHSA-2026:8608
- https://access.redhat.com/errata/RHSA-2026:8578
- https://access.redhat.com/errata/RHSA-2026:8577
- https://access.redhat.com/errata/RHSA-2026:7681
- https://access.redhat.com/errata/RHSA-2026:7680
- https://access.redhat.com/errata/RHSA-2026:7679
- http://www.openwall.com/lists/oss-security/2026/03/19/2
Связанные уязвимости
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
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
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
XML::Parser versions through 2.47 for Perl has an off-by-one heap buffer overflow in st_serial_stack
XML::Parser versions through 2.47 for Perl has an off-by-one heap buff ...