Description
The CHECK macro in mrbgems/mruby-sprintf/src/sprintf.c in mruby 1.4.1 contains a signed integer overflow, possibly leading to out-of-bounds memory access because the mrb_str_resize function in string.c does not check for a negative length.
References (2)
Core 2
Core References
Exploit, Issue Tracking, Third Party Advisory x_refsource_misc
https://github.com/mruby/mruby/issues/4062
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2022/05/msg00006.html
Scores
CVSS v3
7.5
EPSS
0.0036
EPSS Percentile
58.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Details
CWE
CWE-190
Status
published
Products (2)
debian/debian_linux
9.0
mruby/mruby
1.4.1
Published
Jul 17, 2018
Tracked Since
Feb 18, 2026