An exploitable integer overflow vulnerability exists in the xls_preparseWorkSheet function of libxls 1.4 when handling a MULBLANK record. A specially crafted XLS file can cause a memory corruption resulting in remote code execution. An attacker can send malicious XLS file to trigger this vulnerability.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade r-cran-readxl | Feb 25, 2019 | Apr 24, 2018 |
| Ubuntu | — | No solution exists | Jun 26, 2025 | Apr 24, 2018 |
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