Critical severity9.8OSV Advisory· Published Jun 5, 2018· Updated Jun 17, 2026

CVE-2018-11743

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.

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LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Mruby/MrubyOSV2 versions
1.0.0, 1.1.0, 1.2.0, …+ 1 more
- (no CPE)range: 1.0.0, 1.1.0, 1.2.0, …
- (no CPE)range: =1.4.1

Patches

Vulnerability mechanics

References

github.com/mruby/mruby/commit/b64ce17852b180dfeea81cf458660be41a78974dnvdPatchThird Party Advisory
github.com/mruby/mruby/issues/4027nvdExploitIssue TrackingPatchThird Party Advisory
lists.debian.org/debian-lts-announce/2022/05/msg00006.htmlnvdMailing ListThird Party Advisory

News mentions

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cvss	0.637
epss	0.002
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000