{"id":"UBUNTU-CVE-2015-8391","details":"The pcre_compile function in pcre_compile.c in PCRE before 8.38 mishandles certain [: nesting, which allows remote attackers to cause a denial of service (CPU consumption) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.","modified":"2026-04-22T10:21:26.213699Z","published":"2015-12-01T00:00:00Z","related":["USN-2943-1"],"upstream":["CVE-2015-8391"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2015-8391"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2015/11/29/1"},{"type":"REPORT","url":"http://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markup"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-2943-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2015-8391"}],"affected":[{"package":{"name":"pcre3","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/pcre3@1:8.31-2ubuntu2.2?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:8.31-2ubuntu2.2"}]}],"versions":["1:8.31-2","1:8.31-2ubuntu2","1:8.31-2ubuntu2.1"],"ecosystem_specific":{"binaries":[{"binary_name":"libpcre3","binary_version":"1:8.31-2ubuntu2.2"},{"binary_name":"libpcrecpp0","binary_version":"1:8.31-2ubuntu2.2"},{"binary_name":"pcregrep","binary_version":"1:8.31-2ubuntu2.2"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2015/UBUNTU-CVE-2015-8391.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:H/A:H"},{"type":"Ubuntu","score":"low"}]}