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Vulnerability record · CVE-2016-1283 · published 3 January 2016

CVE-2016-1283: Pcre memory buffer overflow vulnerability

Pcre · Pcre

The pcre_compile2 function in pcre_compile.c in PCRE 8.38 mishandles the /((?:F?+(?:^(?(R)a+\"){99}-))(?J)(?'R'(?'R'<((?'RR'(?'R'\){97)?J)?J)(?'R'(?'R'\){99|(:(?|(?'R')(\k'R')|((?'R')))H'R'R)(H'R))))))/ pattern and related patterns with named subgroups, which allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.

9.8 CVSS 3.1 Critical EPSS 7.8% · top 5.5% CWE-119 · Memory buffer overflow
9.8CVSS 3.1 base score, v2 7.5
7.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
24References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

The pcre_compile2 function in pcre_compile.c in PCRE 8.38 mishandles the /((?:F?+(?:^(?(R)a+\"){99}-))(?J)(?'R'(?'R'<((?'RR'(?'R'\){97)?J)?J)(?'R'(?'R'\){99|(:(?|(?'R')(\k'R')|((?'R')))H'R'R)(H'R))))))/ pattern and related patterns with named subgroups, which allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

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

References

LinkTags
http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178193.html Mailing ListThird Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178955.html Mailing ListThird Party Advisory
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html Third Party Advisory
http://www.securityfocus.com/bid/79825 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1034555 Broken LinkThird Party AdvisoryVDB Entry
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.343110 Third Party Advisory
https://access.redhat.com/errata/RHSA-2016:1132 Third Party Advisory
https://bto.bluecoat.com/security-advisory/sa128 Permissions RequiredThird Party Advisory
https://bugs.exim.org/show_bug.cgi?id=1767 ExploitIssue TrackingPermissions RequiredThird Party Advisory
https://security.gentoo.org/glsa/201607-02 Third Party Advisory
https://www.tenable.com/security/tns-2016-18 Third Party Advisory
https://www.tenable.com/security/tns-2017-14 Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178193.html Mailing ListThird Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178955.html Mailing ListThird Party Advisory
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html Third Party Advisory
http://www.securityfocus.com/bid/79825 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1034555 Broken LinkThird Party AdvisoryVDB Entry
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.343110 Third Party Advisory
https://access.redhat.com/errata/RHSA-2016:1132 Third Party Advisory
https://bto.bluecoat.com/security-advisory/sa128 Permissions RequiredThird Party Advisory
https://bugs.exim.org/show_bug.cgi?id=1767 ExploitIssue TrackingPermissions RequiredThird Party Advisory
https://security.gentoo.org/glsa/201607-02 Third Party Advisory
https://www.tenable.com/security/tns-2016-18 Third Party Advisory
https://www.tenable.com/security/tns-2017-14 Third Party Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2016-1283), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.