{"id":"UBUNTU-CVE-2017-12883","details":"Buffer overflow in the S_grok_bslash_N function in regcomp.c in Perl 5 before 5.24.3-RC1 and 5.26.x before 5.26.1-RC1 allows remote attackers to disclose sensitive information or cause a denial of service (application crash) via a crafted regular expression with an invalid '\\N{U+...}' escape.","modified":"2026-02-04T02:28:10.173967Z","published":"2017-09-19T00:00:00Z","related":["USN-3478-1","USN-3478-2"],"upstream":["CVE-2017-12883"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-12883"},{"type":"REPORT","url":"https://rt.perl.org/Public/Bug/Display.html?id=131598"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3478-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3478-2"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2017-12883"}],"affected":[{"package":{"name":"perl","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/perl@5.18.2-2ubuntu1.3?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.18.2-2ubuntu1.3"}]}],"versions":["5.14.2-21build1","5.18.1-4","5.18.1-4build1","5.18.1-5","5.18.2-2","5.18.2-2ubuntu1","5.18.2-2ubuntu1.1"],"ecosystem_specific":{"binaries":[{"binary_name":"libcgi-fast-perl","binary_version":"5.18.2-2ubuntu1.3"},{"binary_name":"libperl-dev","binary_version":"5.18.2-2ubuntu1.3"},{"binary_name":"libperl5.18","binary_version":"5.18.2-2ubuntu1.3"},{"binary_name":"perl","binary_version":"5.18.2-2ubuntu1.3"},{"binary_name":"perl-base","binary_version":"5.18.2-2ubuntu1.3"},{"binary_name":"perl-debug","binary_version":"5.18.2-2ubuntu1.3"},{"binary_name":"perl-modules","binary_version":"5.18.2-2ubuntu1.3"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-12883.json"}},{"package":{"name":"perl","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/perl@5.22.1-9ubuntu0.2?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.22.1-9ubuntu0.2"}]}],"versions":["5.20.2-6","5.22.1-3","5.22.1-4","5.22.1-5","5.22.1-7","5.22.1-8","5.22.1-9"],"ecosystem_specific":{"binaries":[{"binary_name":"libperl-dev","binary_version":"5.22.1-9ubuntu0.2"},{"binary_name":"libperl5.22","binary_version":"5.22.1-9ubuntu0.2"},{"binary_name":"perl","binary_version":"5.22.1-9ubuntu0.2"},{"binary_name":"perl-base","binary_version":"5.22.1-9ubuntu0.2"},{"binary_name":"perl-debug","binary_version":"5.22.1-9ubuntu0.2"},{"binary_name":"perl-modules-5.22","binary_version":"5.22.1-9ubuntu0.2"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-12883.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}