VulnerabilityModified
CVE-2018-12247
An issue was discovered in mruby 1.4.1.
HIGH 7.5EPSS 1.55%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.55%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue was discovered in mruby 1.4.1. There is a NULL pointer dereference in mrb_class, related to certain .clone usage, because mrb_obj_clone in kernel.c copies flags other than the MRB_FLAG_IS_FROZEN flag (e.g., the embedded flag).
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.55% probability · 74th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- mruby/mruby
- Source
- cve@mitre.org
References
- https://github.com/mruby/mruby/commit/55edae0226409de25e59922807cb09acb45731a2Patch, Third Party Advisory
- https://github.com/mruby/mruby/issues/4036Issue Tracking, Third Party Advisory
- https://github.com/mruby/mruby/commit/55edae0226409de25e59922807cb09acb45731a2Patch, Third Party Advisory
- https://github.com/mruby/mruby/issues/4036Issue Tracking, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.