CVE-2021-36089
HIGHCVSS 7.8/10EPSS 1.18%
Last modified
CVE-2021-36089 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Grok 7.6.6 through 9.2.0 has a heap-based buffer overflow in grk::FileFormatDecompress::apply_palette_clr (called from grk::FileFormatDecompress::applyColour).. EPSS estimates a 1.18% chance of exploitation in the next 30 days.
Description
Grok 7.6.6 through 9.2.0 has a heap-based buffer overflow in grk::FileFormatDecompress::apply_palette_clr (called from grk::FileFormatDecompress::applyColour).
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Zope | Grok | >= 7.6.6, <= 9.2.0 |
References
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33544Exploit, Issue Tracking, Patch, Third Party Advisory
- https://github.com/GrokImageCompression/grok/releasesRelease Notes, Third Party Advisory
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/grok/OSV-2021-677.yamlThird Party Advisory
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33544Exploit, Issue Tracking, Patch, Third Party Advisory
- https://github.com/GrokImageCompression/grok/releasesRelease Notes, Third Party Advisory
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/grok/OSV-2021-677.yamlThird Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-36089?
Grok 7.6.6 through 9.2.0 has a heap-based buffer overflow in grk::FileFormatDecompress::apply_palette_clr (called from grk::FileFormatDecompress::applyColour).
How severe is CVE-2021-36089?
CVE-2021-36089 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 1.18% probability of exploitation in the next 30 days.
How do I fix CVE-2021-36089?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2021-36089?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST