CVE-2018-11743
Last modified
CVE-2018-11743 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 2.20% chance of exploitation in the next 30 days.
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.
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 | 1.4.1 |
| Debian | Debian Linux | 9.0 |
References
- https://github.com/mruby/mruby/commit/b64ce17852b180dfeea81cf458660be41a78974dPatch, Third Party Advisory
- https://github.com/mruby/mruby/issues/4027Exploit, Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/05/msg00006.htmlMailing List, Third Party Advisory
- https://github.com/mruby/mruby/commit/b64ce17852b180dfeea81cf458660be41a78974dPatch, Third Party Advisory
- https://github.com/mruby/mruby/issues/4027Exploit, Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/05/msg00006.htmlMailing List, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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