Description
A weakness has been identified in xlnt-community xlnt up to 1.6.1. Impacted is the function xlnt::detail::decode_base64 of the file source/detail/cryptography/base64.cpp of the component Encrypted XLSX File Parser. Executing a manipulation can lead to off-by-one. The attack requires local access. The exploit has been made available to the public and could be used for attacks. This patch is called f2d7bf494e5c52706843cf7eb9892821bffb0734. Applying a patch is advised to resolve this issue.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
xlnt-community xlnt
1.6.0affected1.6.1affected
References
- https://vuldb.com/?id.346649 ↗
- https://vuldb.com/?ctiid.346649 ↗
- https://vuldb.com/?submit.754377 ↗
- https://github.com/xlnt-community/xlnt/issues/137 ↗
- https://github.com/oneafter/0128/blob/main/xl1/repro ↗
- https://github.com/xlnt-community/xlnt/commit/f2d7bf494e5c52706843cf7eb9892821bffb0734 ↗
- https://github.com/xlnt-community/xlnt/ ↗