A vulnerability was determined in xlnt-community xlnt up to 1.6.1. Impacted is the function xlnt::detail::compound_document::read_directory of the file source/detail/cryptography/compound_document.cpp of the component Encrypted XLSX File Parser. Executing a manipulation can lead to out-of-bounds read.
The attack is restricted to local execution. The exploit has been publicly disclosed and may be utilized. This patch is called 147.
Applying a patch is advised to resolve this issue.
Attack Parameters
Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
Low
Partial disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 7
https://github.com/oneafter/0128/blob/main/xl5/repro
cna@vuldb.com
https://github.com/xlnt-community/xlnt/
cna@vuldb.com
https://github.com/xlnt-community/xlnt/issues/141
cna@vuldb.com
https://github.com/xlnt-community/xlnt/pull/147
cna@vuldb.com
https://vuldb.com/?ctiid.349553
cna@vuldb.com
https://vuldb.com/?id.349553
cna@vuldb.com
https://vuldb.com/?submit.764646
cna@vuldb.com