CVE catalog

CVE-2018-14337

mruby: CVE-2018-14337

Severity: Medium
Published: Jul 17, 2018, 3:29:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 1.35% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	mruby	sid	`4.0.0-1`	fixed
Debian	mruby	forky	`4.0.0-1`	fixed
Debian	mruby	trixie	`3.3.0-1`	fixed
Debian	mruby	bookworm	`3.1.0-3`	fixed
Ubuntu	mruby	16.04	`1.1.0+20150817+gita1731254-1`	vulnerable
Ubuntu	mruby	16.04	`1.1.0+20150906+git1cbbb7e1-1`	vulnerable
Ubuntu	mruby	16.04	`1.2.0+20160315+git4f20d58a-1`	vulnerable
Ubuntu	mruby	18.04	`1.3.0-1`	vulnerable
Ubuntu	mruby	18.04	`1.3.0+20170925+git38185028-1`	vulnerable
Ubuntu	mruby	18.04	`1.3.0+20171029+git77edafb0-1`	vulnerable
Ubuntu	mruby	18.04	`1.4.0-1`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	mruby	source	sid	`2.0.0-1`	low	Not reported	[903985]
Debian	mruby	source	forky	`2.0.0-1`	low	Not reported	[903985]
Debian	mruby	source	trixie	`2.0.0-1`	low	Not reported	[903985]
Debian	mruby	source	bookworm	`2.0.0-1`	low	Not reported	[903985]

[Debian bug #903985]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[libmruby-dev]Fixed
Source package: [mruby]
Details (2)
- 3.1.0-3 · amd64 · bookworm
  Fixed · Fixed: 2.0.0-1
  dsa · mruby · debian · bookworm; dsa · mruby · debian · 12
- 3.1.0-3 · arm64 · bookworm
  Fixed · Fixed: 2.0.0-1
  dsa · mruby · debian · bookworm; dsa · mruby · debian · 12
[mruby]Fixed
Details (2)
- 3.1.0-3 · amd64 · bookworm
  Fixed · Fixed: 2.0.0-1
  dsa · mruby · debian · bookworm; dsa · mruby · debian · 12
- 3.1.0-3 · arm64 · bookworm
  Fixed · Fixed: 2.0.0-1
  dsa · mruby · debian · bookworm; dsa · mruby · debian · 12

[Debian 13 (Trixie)]

[libmruby-dev]Fixed
Source package: [mruby]
Details (2)
- 3.3.0-1 · amd64 · trixie
  Fixed · Fixed: 2.0.0-1
  dsa · mruby · debian · 13
- 3.3.0-1+b1 · arm64 · trixie
  Fixed · Fixed: 2.0.0-1
  dsa · mruby · debian · 13
[mruby]Fixed
Source package: [mruby]
Details (2)
- 3.3.0-1 · amd64 · trixie
  Fixed · Fixed: 2.0.0-1
  dsa · mruby · debian · 13
- 3.3.0-1+b1 · arm64 · trixie
  Fixed · Fixed: 2.0.0-1
  dsa · mruby · debian · 13

Observed: Oct 23, 2026, 5:34:36 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database]