CVE-2006-10003
XML::Parser versions through 2.47 for Perl has an off-by-one heap buffer overflow in st_serial_stack
- State
- Published
- Severity
- 9.8 Critical
- Published
- Mar 19, 2026
- Updated
- Jul 15, 2026
- Reserved
- Mar 16, 2026
Description
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
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | CISA-ADP |
| 3.1 | 8.8 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | redhat-SADP |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
XML::ParserTODDR |
|
References
- https://rt.cpan.org/Ticket/Display.html?id=19860issue-tracking
- https://github.com/cpan-authors/XML-Parser/issues/39issue-tracking
- https://github.com/cpan-authors/XML-Parser/commit/3eb9cc95420fa0c3f76947c4708962546bf27cfd.patchpatch
- http://www.openwall.com/lists/oss-security/2026/03/19/2
- https://lists.debian.org/debian-lts-announce/2026/04/msg00002.html
- https://access.redhat.com/security/cve/CVE-2006-10003vdb-entry
- RHBZ#2448999issue-tracking
- https://security.access.redhat.com/data/csaf/v2/vex/2006/cve-2006-10003.json
- https://access.redhat.com/errata/RHSA-2026:8578vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:9110vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:7680vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:7681vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:8609vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:8608vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:8610vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:8577vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:9246vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:9258vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:9259vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:9605vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:7679vendor-advisory
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