Critical severity · published Apr 18, 2018
CVE-2018-10199
In versions of mruby up to and including 1.4.0, a use-after-free vulnerability exists in src/io.c::File#initilialize_copy()
9.8
CVSS
2.3%
EPSS
No
On KEV
Description
In versions of mruby up to and including 1.4.0, a use-after-free vulnerability exists in src/io.c::File#initilialize_copy(). An attacker that can cause Ruby code to be run can possibly use this to execute arbitrary code.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.3% · higher than 83% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MR
Mruby · Mruby
through 1.4.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-10199
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-10199
Patch
https://github.com/mruby/mruby/commit/b51b21fc63c9805862322551387d9036f2b63433
Third Party Advisory
https://github.com/mruby/mruby/issues/4001
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