CVE-2018-11743 - Access of Uninitialized Pointer

Severity

75%

Complexity

99%

Confidentiality

106%

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.

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 3.0 Base Score 9.8. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

CVSS 2.0 Base Score 7.5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P).

Overview

First reported 6 years ago

2018-06-05 13:29:00

Last updated 6 years ago

2018-07-20 15:27:00

Affected Software

mruby 1.4.1

1.4.1

References

https://github.com/mruby/mruby/commit/b64ce17852b180dfeea81cf458660be41a78974d

Patch, Third Party Advisory

https://github.com/mruby/mruby/issues/4027

Issue Tracking, Third Party Advisory

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