CVE-2023-35956
CVSS 3.1 Score 7.8 of 10 (high)
Details
Published Jan 8, 2024
Updated: Apr 9, 2024
CWE ID 119
Summary
CVE-2023-35956 is a serious vulnerability affecting GTKWave 3.3.115, where multiple heap-based buffer overflows can be exploited in the fstReaderIterBlocks2 VCDATA parsing functionality. A maliciously crafted .fst file can cause arbitrary code execution, compromising the system. The decompression function `fastlz_decompress` is the culprit, increasing the urgency for a patch to mitigate this risk. Users are advised to avoid opening untrusted .fst files until a fix is available.
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