CVE-2023-36746
Multiple heap-based buffer overflow vulnerabilities exist in the fstReaderIterBlocks2 fstWritex...
Multiple heap-based buffer overflow vulnerabilities exist in the fstReaderIterBlocks2 fstWritex len functionality of GTKWave 3.3.115. A specially crafted .fst file can lead to memory corruption. A victim would need to open a malicious file to trigger these vulnerabilities.This vulnerability concerns the handling of len in fstWritex when parsing the time table.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Multiple heap-based buffer overflow vulnerabilities exist in the fstReaderIterBlocks2 fstWritex len functionality of GTKWave 3.3.115. A specially crafted .fst file can lead to memory corruption. A victim would need to open a malicious file to trigger these vulnerabilities.This vulnerability concerns the handling of len in fstWritex when parsing the time table.
- Record
CVE-2023-36746- CVSS 3.1
- 7.0 High
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-119
- Updated
- 2026-11-02
EUVDEUVD-2023-40689
Multiple heap-based buffer overflow vulnerabilities exist in the fstReaderIterBlocks2 fstWritex len functionality of GTKWave 3.3.115. A specially crafted .fst file can lead to memory corruption. A victim would need to open a malicious file to trigger these vulnerabilities.This vulnerability concerns the handling of len in fstWritex when parsing the time table.
- Record
EUVD-2023-40689- CVSS 3.1
- 7.0 High
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-f5jr-v79w-8298
Multiple heap-based buffer overflow vulnerabilities exist in the fstReaderIterBlocks2 fstWritex...
Multiple heap-based buffer overflow vulnerabilities exist in the fstReaderIterBlocks2 fstWritex len functionality of GTKWave 3.3.115. A specially crafted .fst file can lead to memory corruption. A victim would need to open a malicious file to trigger these vulnerabilities.This vulnerability concerns the handling of len in fstWritex when parsing the time table.
- Record
GHSA-f5jr-v79w-8298- CVSS 3.1
- 7.0 High
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-119, CWE-787
- Updated
- 2026-11-02
NVD
Multiple heap-based buffer overflow vulnerabilities exist in the fstReaderIterBlocks2 fstWritex len functionality of GTKWave 3.3.115. A specially crafted .fst file can lead to memory corruption. A victim would need to open a malicious file to trigger these vulnerabilities.This vulnerability concerns the handling of len in fstWritex when parsing the time table.
- Record
CVE-2023-36746- CVSS 3.1
- 7.0 High
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-119, CWE-787
- Updated
- 2026-11-02
OSV
Multiple heap-based buffer overflow vulnerabilities exist in the fstReaderIterBlocks2 fstWritex len functionality of GTKWave 3.3.115. A specially crafted .fst file can lead to memory corruption. A victim would need to open a malicious file to trigger these vulnerabilities.This vulnerability concerns the handling of len in fstWritex when parsing the time table.
- Record
CVE-2023-36746- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2023-36746
Multiple heap-based buffer overflow vulnerabilities exist in the fstReaderIterBlocks2 fstWritex len functionality of GTKWave 3.3.115. A specially crafted .fst file can lead to memory corruption. A victim would need to open a malicious file to trigger these vulnerabilities.This vulnerability concerns the handling of len in fstWritex when parsing the time table.
- Record
DEBIAN-CVE-2023-36746- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2023-36746
Multiple heap-based buffer overflow vulnerabilities exist in the fstReaderIterBlocks2 fstWritex len functionality of GTKWave 3.3.115. A specially crafted .fst file can lead to memory corruption. A victim would need to open a malicious file to trigger these vulnerabilities.This vulnerability concerns the handling of len in fstWritex when parsing the time table.
- Record
UBUNTU-CVE-2023-36746- CVSS 3.1
- 7.0 High
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
gtkwaveDebian:12 |
before 3.3.118-0.1~deb12u1, plus listed versions 3.3.114-23.3.115-13.3.116-1 |
3.3.118-0.1~deb12u1 |
gtkwaveDebian:13 |
before 3.3.118-0.1 | 3.3.118-0.1 |
gtkwaveDebian:14 |
before 3.3.118-0.1 | 3.3.118-0.1 |
gtkwaveDebian:10 From an advisory covering 82 CVEs |
before 3.3.98+really3.3.118-0+deb10u1, plus listed versions 3.3.98-1 |
3.3.98+really3.3.118-0+deb10u1 |
gtkwaveDebian:11 From an advisory covering 82 CVEs |
before 3.3.104+really3.3.118-0+deb11u1, plus listed versions 3.3.104-2 |
3.3.104+really3.3.118-0+deb11u1 |
gtkwaveDebian:12 From an advisory covering 82 CVEs |
before 3.3.118-0.1~deb12u1, plus listed versions 3.3.114-23.3.115-13.3.116-1 |
3.3.118-0.1~deb12u1 |
gtkwaveUbuntu:16.04:LTS |
All versions, plus listed versions 3.3.66-1 |
None known |
gtkwaveUbuntu:18.04:LTS |
All versions, plus listed versions 3.3.82-13.3.86-1 |
None known |
gtkwaveUbuntu:20.04:LTS |
All versions, plus listed versions 3.3.101-23.3.102-13.3.103-13.3.103-1build1 |
None known |
gtkwaveUbuntu:22.04:LTS |
All versions, plus listed versions 3.3.104-23.3.104-2build1 |
None known |
Show 4 moreShow less
| Package | Affected | Fixed |
|---|---|---|
gtkwaveUbuntu:24.04:LTS |
All versions, plus listed versions 3.3.116-13.3.116-1build13.3.116-1build2 |
None known |
gtkwaveUbuntu:25.10 |
All versions, plus listed versions 3.3.121-13.3.125-1 |
None known |
gtkwaveUbuntu:26.10 |
All versions, plus listed versions 3.3.126-13.3.127-1 |
None known |
gtkwaveUbuntu:26.04:LTS |
All versions, plus listed versions 3.3.125-13.3.126-1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-36746 is a high vulnerability (CVSS 7.0) in Gtkwave, published January 8, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.37%, the 31st percentile. Fixed in gtkwave 3.3.118-0.1~deb12u1.
References
talosintelligence.com/vulnerability_reports/TALOS-2023-1793
lists.debian.org/debian-lts-announce/2024/04/msg00007.html
nvd.nist.gov/vuln/detail/CVE-2023-36746
github.com/advisories/GHSA-f5jr-v79w-8298
security-tracker.debian.org/tracker/CVE-2023-36746
ubuntu.com/security/CVE-2023-36746
cve.org/CVERecord?id=CVE-2023-36746