CVE-2023-35956: Multiple heap-based buffer overflow vulnerabilities exist in the fstReaderIterBlocks2 VCDATA parsing functionality of GTKWave 3.3.115. A specially-crafted .fst…

PriorityP337high7.8CVSS 3.1

AVLACLPRNUIRSUCHIHAH

EPSS

0.44%

35.6th percentile

Multiple heap-based buffer overflow vulnerabilities exist in the fstReaderIterBlocks2 VCDATA parsing functionality of GTKWave 3.3.115. A specially-crafted .fst file can lead to arbitrary code execution. A victim would need to open a malicious file to trigger these vulnerabilities.This vulnerability concerns the decompression function `fastlz_decompress`.

Affected

7 ranges

Vendor	Product	Version range	Fixed in
debian	gtkwave	< gtkwave 3.3.118-0.1~deb12u1 (bookworm)	gtkwave 3.3.118-0.1~deb12u1 (bookworm)
gtkwave	gtkwave	—	—
gtkwave	gtkwave	>= 0 < 3.3.104+really3.3.118-0+deb11u1	3.3.104+really3.3.118-0+deb11u1
gtkwave	gtkwave	>= 0 < 3.3.118-0.1~deb12u1	3.3.118-0.1~deb12u1
gtkwave	gtkwave	>= 0 < 3.3.118-0.1	3.3.118-0.1
gtkwave	gtkwave	>= 0 < 3.3.118-0.1	3.3.118-0.1
tonybybell	gtkwave	—	—

CVSS provenance

nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

osv7.8HIGH

vendor_debian7.8HIGH

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