Vulnerability 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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mruby | Mruby | 1.4.1 |
| Debian | Debian Linux | 9.0 |
Related Weaknesses (CWE)
References
- https://github.com/mruby/mruby/commit/b64ce17852b180dfeea81cf458660be41a78974dPatchThird Party Advisory
- https://github.com/mruby/mruby/issues/4027ExploitIssue TrackingPatch
- https://lists.debian.org/debian-lts-announce/2022/05/msg00006.htmlMailing ListThird Party Advisory
- https://github.com/mruby/mruby/commit/b64ce17852b180dfeea81cf458660be41a78974dPatchThird Party Advisory
- https://github.com/mruby/mruby/issues/4027ExploitIssue TrackingPatch
- https://lists.debian.org/debian-lts-announce/2022/05/msg00006.htmlMailing ListThird Party Advisory
FAQ
What is CVE-2018-11743?
CVE-2018-11743 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 applic...
How severe is CVE-2018-11743?
CVE-2018-11743 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2018-11743?
Check the references section above for vendor advisories and patch information. Affected products include: Mruby Mruby, Debian Debian Linux.