{"id":"UBUNTU-CVE-2018-14337","details":"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.","modified":"2026-04-22T11:44:50.045381Z","published":"2018-07-17T03:29:00Z","upstream":["CVE-2018-14337"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-14337"},{"type":"REPORT","url":"https://github.com/mruby/mruby/issues/4062"},{"type":"REPORT","url":"https://github.com/mruby/mruby/commit/695f29cd604787f43be1af16e38d13610bf8312b"},{"type":"REPORT","url":"https://github.com/mruby/mruby/commit/adb1eae912659d680a9c5b7832e22cf73d36a69a"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2018-14337"}],"affected":[{"package":{"name":"mruby","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/mruby@1.2.0+20160315+git4f20d58a-1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.0+20150817+gita1731254-1","1.1.0+20150906+git1cbbb7e1-1","1.2.0+20160315+git4f20d58a-1"],"ecosystem_specific":{"binaries":[{"binary_name":"mruby","binary_version":"1.2.0+20160315+git4f20d58a-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-14337.json"}},{"package":{"name":"mruby","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/mruby@1.4.0-1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.0-1","1.3.0+20170925+git38185028-1","1.3.0+20171029+git77edafb0-1","1.4.0-1"],"ecosystem_specific":{"binaries":[{"binary_name":"mruby","binary_version":"1.4.0-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-14337.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}