CVE-2020-6839
CRITICALCVSS 9.8/10EPSS 1.35%
Last modified
CVE-2020-6839 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. In mruby 2.1.0, there is a stack-based buffer overflow in mrb_str_len_to_dbl in string.c.. EPSS estimates a 1.35% chance of exploitation in the next 30 days.
Description
In mruby 2.1.0, there is a stack-based buffer overflow in mrb_str_len_to_dbl in string.c.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mruby | Mruby | 2.1.0 |
References
- https://github.com/mruby/mruby/issues/4929Exploit, Third Party Advisory
- https://github.com/mruby/mruby/issues/4929Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-6839?
In mruby 2.1.0, there is a stack-based buffer overflow in mrb_str_len_to_dbl in string.c.
How severe is CVE-2020-6839?
CVE-2020-6839 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.35% probability of exploitation in the next 30 days.
How do I fix CVE-2020-6839?
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-2020-6839?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST