CVE-2006-10002

Summary

XML::Parser versions through 2.45 for Perl could overflow the pre-allocated buffer size cause a heap corruption (double free or corruption) and crashes.

A :utf8 PerlIO layer, parse_stream() in Expat.xs could overflow the XML input buffer because Perl's read() returns decoded characters while SvPV() gives back multi-byte UTF-8 bytes that can exceed the pre-allocated buffer size. This can cause heap corruption (double free or corruption) and crashes.

Affected Software

Weaknesses

• CWE-122: CWE-122 Heap-based Buffer Overflow
• CWE-176: CWE-176 Improper Handling of Unicode Encoding

Workarounds

Apply the patch that has been publicly available since 2006-06-13.

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: yes
  • Technical Impact: total

CVE Program Container

Additional References

• http://www.openwall.com/lists/oss-security/2026/03/19/1
• http://www.openwall.com/lists/oss-security/2026/03/22/3

References

• https://rt.cpan.org/Ticket/Display.html?id=19859
• https://github.com/cpan-authors/XML-Parser/issues/64
• https://metacpan.org/release/TODDR/XML-Parser-2.46/changes
• https://github.com/cpan-authors/XML-Parser/commit/56b0509dfc6b559cd7555ea81ee62e3622069255.patch

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