What’s Vulnerable › Vulnerabilities

CVE-2018-14337

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-07-17 · updated 2026-06-17
• Weakness: CWE-190

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.

Affected products

• Debian Linux: 9.0
• mruby/mruby: 1.4.1

References

• https://github.com/mruby/mruby/issues/4062
• https://lists.debian.org/debian-lts-announce/2022/05/msg00006.html
• https://github.com/mruby/mruby/issues/4062
• https://lists.debian.org/debian-lts-announce/2022/05/msg00006.html

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