9.8crit
CVE-2018-10191
In versions of mruby up to and including 1.4.0, an integer overflow exists in src/vm.c::mrb_vm_exec() when handling OP_GETUPVAR in the pres…
Published 8 y ago · modified 4 mo ago · JSON
CVSS
9.8
v3.1 · NVD
CISA KEV
No
not known exploited
EPSS
2.6%
percentile 85%
Public exploits
0
none known
Summary
In versions of mruby up to and including 1.4.0, an integer overflow exists in src/vm.c::mrb_vm_exec() when handling OP_GETUPVAR in the presence of deep scope nesting, resulting in a use-after-free. An attacker that can cause Ruby code to be run can use this to possibly execute arbitrary code.
Exploit prediction (EPSS)
2.59% probability of exploitation in the next 30 days, higher than 85% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Classification
- Weakness
- CWE-190 Integer Overflow or Wraparound
References
- github.com /mruby/mruby/issues/3995 · x_refsource_MISC, x_transferred
- github.com /mruby/mruby/commit/1905091634a6a2925c911484434448e568330626 · x_refsource_MISC, x_transferred
- lists.debian.org /debian-lts-announce/2022/05/msg00006.html · mailing-list, x_refsource_MLIST, x_transferred
Sources
- CVE List: CVE-2018-10191
- NVD: CVE-2018-10191
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