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Vulnerability record · CVE-2018-18311 · published 7 December 2018

CVE-2018-18311: Perl integer overflow vulnerability

Perl · Perl

Perl before 5.26.3 and 5.28.x before 5.28.1 has a buffer overflow via a crafted regular expression that triggers invalid write operations.

9.8 CVSS 3.0 Critical EPSS 12% · top 4.1% CWE-190 · Integer overflowCWE-787 · Out-of-bounds write
9.8CVSS 3.0 base score, v2 7.5
12%EPSS exploitation probability, 30 days
NoNot in CISA KEV
18Affected product versions listed by NVD
56References
17 Jun 2026Last modified by NVD

Description

Perl before 5.26.3 and 5.28.x before 5.28.1 has a buffer overflow via a crafted regular expression that triggers invalid write operations.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

18 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://seclists.org/fulldisclosure/2019/Mar/49 Mailing ListThird Party Advisory
http://www.securityfocus.com/bid/106145 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1042181 Third Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHBA-2019:0327 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0001 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0010 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0109 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1790
https://access.redhat.com/errata/RHSA-2019:1942
https://access.redhat.com/errata/RHSA-2019:2400
https://bugzilla.redhat.com/show_bug.cgi?id=1646730 Issue TrackingPatchThird Party Advisory
https://github.com/Perl/perl5/commit/34716e2a6ee2af96078d62b065b7785c001194be PatchThird Party Advisory
https://kc.mcafee.com/corporate/index?page=content&id=SB10278 Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/11/msg00039.html Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RWQGEB543QN7SSBRKYJM6PS
https://metacpan.org/changes/release/SHAY/perl-5.26.3 Third Party Advisory
https://metacpan.org/changes/release/SHAY/perl-5.28.1 Third Party Advisory
https://rt.perl.org/Ticket/Display.html?id=133204 Issue TrackingThird Party Advisory
https://seclists.org/bugtraq/2019/Mar/42 Mailing ListThird Party Advisory
https://security.gentoo.org/glsa/201909-01
https://security.netapp.com/advisory/ntap-20190221-0003/ Third Party Advisory
https://support.apple.com/kb/HT209600 Third Party Advisory
https://usn.ubuntu.com/3834-1/ Third Party Advisory
https://usn.ubuntu.com/3834-2/ Third Party Advisory
https://www.debian.org/security/2018/dsa-4347 Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2020.html
https://www.oracle.com/security-alerts/cpujul2020.html
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
http://seclists.org/fulldisclosure/2019/Mar/49 Mailing ListThird Party Advisory
http://www.securityfocus.com/bid/106145 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1042181 Third Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHBA-2019:0327 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0001 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0010 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0109 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1790
https://access.redhat.com/errata/RHSA-2019:1942
https://access.redhat.com/errata/RHSA-2019:2400
https://bugzilla.redhat.com/show_bug.cgi?id=1646730 Issue TrackingPatchThird Party Advisory
https://github.com/Perl/perl5/commit/34716e2a6ee2af96078d62b065b7785c001194be PatchThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2018-18311), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.