CVE-2020-36401
HIGHCVSS 7.8/10EPSS 0.99%
Last modified
CVE-2020-36401 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. mruby 2.1.2 has a double free in mrb_default_allocf (called from mrb_free and obj_free).. EPSS estimates a 0.99% chance of exploitation in the next 30 days.
Description
mruby 2.1.2 has a double free in mrb_default_allocf (called from mrb_free and obj_free).
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 |
|---|---|---|
| Mruby | Mruby | 2.1.2 |
References
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=23801Exploit, Issue Tracking, Patch, Third Party Advisory
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/mruby/OSV-2020-744.yamlThird Party Advisory
- https://github.com/mruby/mruby/commit/97319697c8f9f6ff27b32589947e1918e3015503Patch, Third Party Advisory
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=23801Exploit, Issue Tracking, Patch, Third Party Advisory
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/mruby/OSV-2020-744.yamlThird Party Advisory
- https://github.com/mruby/mruby/commit/97319697c8f9f6ff27b32589947e1918e3015503Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-36401?
mruby 2.1.2 has a double free in mrb_default_allocf (called from mrb_free and obj_free).
How severe is CVE-2020-36401?
CVE-2020-36401 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.99% probability of exploitation in the next 30 days.
How do I fix CVE-2020-36401?
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-2020-36401?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST