Description
A vulnerability was found in xlnt-community xlnt up to 1.6.1. This issue affects the function xlnt::detail::compound_document_istreambuf::xsgetn of the file source/detail/cryptography/compound_document.cpp of the component XLSX File Parser. Performing a manipulation results in out-of-bounds read. The attack is only possible with local access. The exploit has been made public and could be used. The patch is named 147. It is recommended to apply a patch to fix this issue.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| xlnt-community | xlnt | 1.6.0, 1.6.1 | — |
References
- VDB-349552 | xlnt-community xlnt XLSX File compound_document.cpp xsgetn out-of-bounds vdb-entry technical-description
- VDB-349552 | CTI Indicators (IOB, IOC, IOA) signature permissions-required
- Submit #764644 | xlnt-community xlnt commit bceb706 and before Heap-based Buffer Overflow third-party-advisory
- https://github.com/xlnt-community/xlnt/issues/139 issue-tracking
- https://github.com/oneafter/0128/blob/main/xl3/repro exploit
- https://github.com/xlnt-community/xlnt/pull/147 issue-tracking patch
- https://github.com/xlnt-community/xlnt/ product