CVE-2018-3976
CVE-2018-3976 is a high-severity vulnerability in Canvasgfx Canvas Draw with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- CVSS v2: 6.8
- EPSS exploit prediction: 2% (76th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Canvasgfx Canvas Draw
- Published:
- Last modified:
Description
An exploitable out-of-bounds write exists in the CALS Raster file format-parsing functionality of Canvas Draw version 5.0.0.28. A specially crafted CAL image processed via the application can lead to an out-of-bounds write, overwriting arbitrary data. An attacker can deliver a CAL image to trigger this vulnerability and gain code execution.
Frequently asked questions
- What is CVE-2018-3976?
- An exploitable out-of-bounds write exists in the CALS Raster file format-parsing functionality of Canvas Draw version 5.0.0.28. A specially crafted CAL image processed via the application can lead to an out-of-bounds write, overwriting arbitrary data. An attacker can deliver a CAL image to trigger this vulnerability and gain code execution.
- How severe is CVE-2018-3976?
- CVE-2018-3976 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2018-3976 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-3976?
- CVE-2018-3976 affects Canvasgfx Canvas Draw. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2018-3976?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2018-3976 published?
- CVE-2018-3976 was published on 2019-02-06 and last updated on 2026-06-17.
References
- http://www.securityfocus.com/bid/106809
- https://talosintelligence.com/vulnerability_reports/TALOS-2018-0642
Affected products (1)
- cpe:2.3:a:canvasgfx:canvas_draw:5.0.0.28:*:*:*:*:macos:*:*
More vulnerabilities in Canvasgfx Canvas Draw
- CVE-2018-3980 — High (CVSS 7.8): An exploitable out-of-bounds write exists in the TIFF-parsing functionality of Canvas Draw version 5.0.0. A specially…
- CVE-2018-3973 — High (CVSS 7.8): An exploitable out of bounds write exists in the CAL parsing functionality of Canvas Draw version 5.0.0. A specially…
- CVE-2018-3981 — High (CVSS 7.8): An exploitable out-of-bounds write exists in the TIFF-parsing functionality of Canvas Draw version 5.0.0. An attacker…
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