Heap-Based Buffer Over-read in mruby Affects Multiple Versions
CVE-2018-12248

7.5HIGH

Key Information:

Vendor

Mruby

Status
Mruby
Vendor
CVE Published:
12 June 2018

What is CVE-2018-12248?

An issue in mruby version 1.4.1 enables a heap-based buffer over-read during the execution of the OP_ENTER operation. This occurs due to improper stack extension handling when passing multiple arguments to fiber functions in the mrbgems/mruby-fiber module. The vulnerability can potentially be exploited to read unintended memory contents, posing a risk during the manipulation of fibers.

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References

https://github.com/mruby/mruby/issues/4038
x_refsource_MISC
https://github.com/mruby/mruby/commit/778500563a9f7ceba99...
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability Reserved

  • Vulnerability published

JSON
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