{"id":"CVE-2017-12837","details":"Heap-based buffer overflow in the S_regatom 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 cause a denial of service (out-of-bounds write) via a regular expression with a '\\N{}' escape and the case-insensitive modifier.","modified":"2026-03-20T11:18:32.401221Z","published":"2017-09-19T18:29:00.167Z","related":["MGASA-2018-0047","MGASA-2018-0049","SUSE-SU-2017:3092-1","openSUSE-SU-2024:11158-1"],"references":[{"type":"WEB","url":"https://www.oracle.com/security-alerts/cpujul2020.html"},{"type":"WEB","url":"https://rt.perl.org/Public/Bug/Display.html?id=131582"},{"type":"ADVISORY","url":"https://perl5.git.perl.org/perl.git/log/refs/tags/v5.24.3-RC1"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20180426-0001/"},{"type":"ADVISORY","url":"http://www.debian.org/security/2017/dsa-3982"},{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/100860"},{"type":"ADVISORY","url":"https://perl5.git.perl.org/perl.git/log/refs/tags/v5.26.1-RC1"},{"type":"FIX","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1492091"},{"type":"FIX","url":"https://perl5.git.perl.org/perl.git/commitdiff/96c83ed78aeea1a0496dd2b2d935869a822dc8a5"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/perl/perl5","events":[{"introduced":"0"},{"last_affected":"eb3b805818a89c08b5564d383beddf70f69af1a3"},{"introduced":"0"},{"last_affected":"95388f2eb27e74cdbfb715c0097f16aeba4e6e4e"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"5.24.2"},{"introduced":"0"},{"last_affected":"5.26.0"}]}}],"versions":["GitLive-blead","if-0.0602","if-0.0603","if-0.0604","if-0.0605","perl-1.0","perl-2.0","perl-3.000","perl-3.044","perl-4.0.00","perl-4.0.36","perl-5.000","perl-5.000o","perl-5.001","perl-5.001n","perl-5.002","perl-5.002_01","perl-5.003","perl-5.003_01","perl-5.003_02","perl-5.003_03","perl-5.003_04","perl-5.003_05","perl-5.003_07","perl-5.003_08","perl-5.003_09","perl-5.003_10","perl-5.003_11","perl-5.003_12","perl-5.003_13","perl-5.003_14","perl-5.003_15","perl-5.003_16","perl-5.003_17","perl-5.003_18","perl-5.003_19","perl-5.003_20","perl-5.003_21","perl-5.003_22","perl-5.003_23","perl-5.003_24","perl-5.003_25","perl-5.003_26","perl-5.003_27","perl-5.003_28","perl-5.003_90","perl-5.003_91","perl-5.003_92","perl-5.003_93","perl-5.003_94","perl-5.003_95","perl-5.003_96","perl-5.003_97","perl-5.003_97a","perl-5.003_97b","perl-5.003_97c","perl-5.003_97d","perl-5.003_97e","perl-5.003_97f","perl-5.003_97g","perl-5.003_97h","perl-5.003_97i","perl-5.003_97j","perl-5.003_98","perl-5.003_99","perl-5.003_99a","perl-5.004","perl-5.004_01","perl-5.004_02","perl-5.004_03","perl-5.004_04","perl-5.005","perl-5.005_01","perl-5.005_02","perl-5.6.0","perl-5.7.0","perl-5.7.1","perl-5.7.2","perl-5.7.3","perl-5.8.0","perl-5.9.0","perl-5.9.1","perl-5.9.2","perl-5.9.3","perl-5.9.4","perl-5.9.5","perl-5a2","perl-5a9","v5.10.0","v5.11.0","v5.11.1","v5.11.2","v5.11.3","v5.11.4","v5.11.5","v5.12.0","v5.12.0-RC0","v5.12.0-RC1","v5.12.0-RC2","v5.12.0-RC3","v5.12.0-RC4","v5.12.0-RC5","v5.13.0","v5.13.1","v5.13.10","v5.13.11","v5.13.2","v5.13.3","v5.13.4","v5.13.5","v5.13.6","v5.13.7","v5.13.8","v5.13.9","v5.14.0","v5.14.0-RC1","v5.14.0-RC2","v5.14.0-RC3","v5.15.0","v5.15.1","v5.15.2","v5.15.3","v5.15.4","v5.15.5","v5.15.6","v5.15.7","v5.15.8","v5.15.9","v5.16.0","v5.16.0-RC1","v5.16.0-RC2","v5.17.0","v5.17.1","v5.17.10","v5.17.11","v5.17.2","v5.17.3","v5.17.4","v5.17.5","v5.17.6","v5.17.7","v5.17.7.0","v5.17.8","v5.17.9","v5.18.0","v5.18.0-RC1","v5.18.0-RC2","v5.18.0-RC3","v5.18.0-RC4","v5.19.0","v5.19.1","v5.19.10","v5.19.11","v5.19.2","v5.19.3","v5.19.4","v5.19.5","v5.19.6","v5.19.7","v5.19.8","v5.19.9","v5.20.0","v5.20.0-RC1","v5.21.0","v5.21.1","v5.21.10","v5.21.11","v5.21.2","v5.21.3","v5.21.4","v5.21.5","v5.21.6","v5.21.7","v5.21.8","v5.21.9","v5.22.0","v5.22.0-RC1","v5.22.0-RC2","v5.23.0","v5.23.1","v5.23.2","v5.23.3","v5.23.4","v5.23.5","v5.23.6","v5.23.7","v5.23.8","v5.23.9","v5.24.0","v5.24.0-RC1","v5.24.0-RC2","v5.24.0-RC3","v5.24.0-RC4","v5.24.0-RC5","v5.24.1","v5.24.1-RC1","v5.24.1-RC2","v5.24.1-RC3","v5.24.1-RC4","v5.24.1-RC5","v5.24.2","v5.24.2-RC1","v5.25.0","v5.25.1","v5.25.10","v5.25.11","v5.25.12","v5.25.2","v5.25.3","v5.25.4","v5.25.5","v5.25.6","v5.25.7","v5.25.8","v5.25.9","v5.26.0","v5.26.0-RC1","v5.26.0-RC2"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2017-12837.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}