CVE-2018-11743 — Access of Uninitialized Pointer in Mruby

CWE-824 — Access of Uninitialized Pointer4 documents4 sources
Severity
9.8CRITICALNVD
EPSS
0.6%
top 31.49%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
MrubyDebian MrubyDebian Linux
Timeline
PublishedJun 5
Latest updateMay 7

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 vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages3 packages

▶debiandebian/mruby< mruby 1.4.1+20180622+git640fca32-1 (bookworm)
▶Debianmruby/mruby< 1.4.1+20180622+git640fca32-1+3
▶NVDmruby/mruby1.4.1

Also affects: Debian Linux 9.0

Patches

Patch: github.com ↗Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-7w9j-h3hj-wc9g: The init_copy function in kernel↗2022-05-07
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OSV
CVE-2018-11743: The init_copy function in kernel↗2018-06-05
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📋Vendor Advisories

1
Debian
CVE-2018-11743: mruby - The init_copy function in kernel.c in mruby 1.4.1 makes initialize_copy calls fo...↗2018
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