CVE-2018-18314

Perl before 5.26.3 has a buffer overflow via a crafted regular expression that triggers invalid write operations.

• CWE-119

• http://www.securityfocus.com/bid/106145Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1042181Third Party Advisory, VDB Entry
• https://access.redhat.com/errata/RHSA-2019:0001Third Party Advisory
• https://access.redhat.com/errata/RHSA-2019:0010Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1646751Issue Tracking, Patch, Third Party Advisory
• https://github.com/Perl/perl5/commit/19a498a461d7c81ae3507c450953d1148efecf4fPatch, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RWQGEB543QN7SSBRKYJM6PSOC3RLYGSM/
• https://metacpan.org/changes/release/SHAY/perl-5.26.3Third Party Advisory
• https://rt.perl.org/Ticket/Display.html?id=131649Exploit, Patch, Third Party Advisory
• https://security.gentoo.org/glsa/201909-01
• https://security.netapp.com/advisory/ntap-20190221-0003/Patch, Third Party Advisory
• https://usn.ubuntu.com/3834-1/Third Party Advisory
• https://www.debian.org/security/2018/dsa-4347Third Party Advisory
• https://www.oracle.com/security-alerts/cpujul2020.html
• http://www.securityfocus.com/bid/106145Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1042181Third Party Advisory, VDB Entry
• https://access.redhat.com/errata/RHSA-2019:0001Third Party Advisory
• https://access.redhat.com/errata/RHSA-2019:0010Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1646751Issue Tracking, Patch, Third Party Advisory
• https://github.com/Perl/perl5/commit/19a498a461d7c81ae3507c450953d1148efecf4fPatch, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RWQGEB543QN7SSBRKYJM6PSOC3RLYGSM/
• https://metacpan.org/changes/release/SHAY/perl-5.26.3Third Party Advisory
• https://rt.perl.org/Ticket/Display.html?id=131649Exploit, Patch, Third Party Advisory
• https://security.gentoo.org/glsa/201909-01
• https://security.netapp.com/advisory/ntap-20190221-0003/Patch, Third Party Advisory
• https://usn.ubuntu.com/3834-1/Third Party Advisory
• https://www.debian.org/security/2018/dsa-4347Third Party Advisory
• https://www.oracle.com/security-alerts/cpujul2020.html

Published

Dec 7, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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