CVE-2018-11743
9.8
CRITICAL
CVSS 3.1
EPSS 0.57%
Description
The init_copy function in kernel.c in mruby 1.4.1 makes initialize_copy calls for TT_ICLASS objects, which allows attackers to cause a denial of service (mrb_hash_keys uninitialized pointer and application crash) or possibly have unspecified other impact.
How to fix CVE-2018-11743
To remediate CVE-2018-11743, upgrade the affected package to a fixed version below.
- Debian/mruby—upgrade to 1.4.1+20180622+git640fca32-1 or later
Is CVE-2018-11743 being exploited?
Low — EPSS is 0.6%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 1.4.1+20180622+git640fca32-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |