High severity7.5NVD Advisory· Published Apr 17, 2018· Updated Jun 17, 2026

CVE-2018-6798

Description

An issue was discovered in Perl 5.22 through 5.26. Matching a crafted locale dependent regular expression can cause a heap-based buffer over-read and potentially information disclosure.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Perl Foundation/Perl2 versions
cpe:2.3:a:perl:perl:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:perl:perl:*:*:*:*:*:*:*:*range: >=5.22,<=5.26
- (no CPE)range: >=5.22, <=5.26
Canonical/Ubuntu Linux3 versions
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*+ 2 more
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*
Debian/linux3 versions
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Red Hat/Enterprise Linux Server5 versions
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*+ 4 more
- cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server:7.3:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server:7.4:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server:7.5:*:*:*:*:*:*:*
Red Hat/Enterprise Linux Workstation2 versions
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
osv-coords42 versions
pkg:rpm/opensuse/perl&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/perl&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/perl&distro=openSUSE%20Leap%20Micro%205.3 pkg:rpm/opensuse/perl&distro=openSUSE%20Leap%20Micro%205.4 pkg:rpm/suse/perl&distro=SUSE%20Enterprise%20Storage%204 pkg:rpm/suse/perl&distro=SUSE%20Enterprise%20Storage%207.1 pkg:rpm/suse/perl&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3 pkg:rpm/suse/perl&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSS pkg:rpm/suse/perl&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSS pkg:rpm/suse/perl&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOS pkg:rpm/suse/perl&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSS pkg:rpm/suse/perl&distro=SUSE%20Linux%20Enterprise%20Micro%205.1 pkg:rpm/suse/perl&distro=SUSE%20Linux%20Enterprise%20Micro%205.2 pkg:rpm/suse/perl&distro=SUSE%20Linux%20Enterprise%20Micro%205.3 pkg:rpm/suse/perl&distro=SUSE%20Linux%20Enterprise%20Micro%205.4 pkg:rpm/suse/perl&distro=SUSE%20Linux%20Enterprise%20Micro%205.5 pkg:rpm/suse/perl&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5 pkg:rpm/suse/perl&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6 pkg:rpm/suse/perl&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP5 pkg:rpm/suse/perl&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP6 pkg:rpm/suse/perl&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP5 pkg:rpm/suse/perl&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP6 pkg:rpm/suse/perl&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4 pkg:rpm/suse/perl&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSS pkg:rpm/suse/perl&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCL pkg:rpm/suse/perl&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSS pkg:rpm/suse/perl&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3 pkg:rpm/suse/perl&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/perl&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSS pkg:rpm/suse/perl&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSS pkg:rpm/suse/perl&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSS pkg:rpm/suse/perl&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4 pkg:rpm/suse/perl&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1 pkg:rpm/suse/perl&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2 pkg:rpm/suse/perl&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3 pkg:rpm/suse/perl&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2 pkg:rpm/suse/perl&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP3 pkg:rpm/suse/perl&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4 pkg:rpm/suse/perl&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2011%20SP4 pkg:rpm/suse/perl&distro=SUSE%20Manager%20Proxy%204.3 pkg:rpm/suse/perl&distro=SUSE%20Manager%20Server%204.3 pkg:rpm/suse/perl&distro=SUSE%20OpenStack%20Cloud%207
< 5.26.1-150300.17.17.1+ 41 more
- (no CPE)range: < 5.26.1-150300.17.17.1
- (no CPE)range: < 5.26.1-150300.17.17.1
- (no CPE)range: < 5.26.1-150300.17.17.1
- (no CPE)range: < 5.26.1-150300.17.17.1
- (no CPE)range: < 5.18.2-12.14.1
- (no CPE)range: < 5.26.1-150300.17.17.1
- (no CPE)range: < 5.18.2-12.11.1
- (no CPE)range: < 5.26.1-150000.7.18.1
- (no CPE)range: < 5.26.1-150300.17.17.1
- (no CPE)range: < 5.26.1-150300.17.17.1
- (no CPE)range: < 5.26.1-150300.17.17.1
- (no CPE)range: < 5.26.1-150300.17.17.1
- (no CPE)range: < 5.26.1-150300.17.17.1
- (no CPE)range: < 5.26.1-150300.17.17.1
- (no CPE)range: < 5.26.1-150300.17.17.1
- (no CPE)range: < 5.26.1-150300.17.17.1
- (no CPE)range: < 5.26.1-150300.17.17.1
- (no CPE)range: < 5.26.1-150300.17.17.1
- (no CPE)range: < 5.26.1-150300.17.17.1
- (no CPE)range: < 5.26.1-150300.17.17.1
- (no CPE)range: < 5.26.1-150300.17.17.1
- (no CPE)range: < 5.26.1-150300.17.17.1
- (no CPE)range: < 5.10.0-64.81.10.1
- (no CPE)range: < 5.18.2-12.14.1
- (no CPE)range: < 5.18.2-12.14.1
- (no CPE)range: < 5.18.2-12.14.1
- (no CPE)range: < 5.18.2-12.11.1
- (no CPE)range: < 5.18.2-12.14.1
- (no CPE)range: < 5.26.1-150000.7.18.1
- (no CPE)range: < 5.26.1-150300.17.17.1
- (no CPE)range: < 5.26.1-150300.17.17.1
- (no CPE)range: < 5.10.0-64.81.10.1
- (no CPE)range: < 5.18.2-12.14.1
- (no CPE)range: < 5.18.2-12.14.1
- (no CPE)range: < 5.18.2-12.11.1
- (no CPE)range: < 5.26.1-150000.7.18.1
- (no CPE)range: < 5.26.1-150300.17.17.1
- (no CPE)range: < 5.26.1-150300.17.17.1
- (no CPE)range: < 5.10.0-64.81.10.1
- (no CPE)range: < 5.26.1-150300.17.17.1
- (no CPE)range: < 5.26.1-150300.17.17.1
- (no CPE)range: < 5.18.2-12.14.1

Patches

Vulnerability mechanics

References

www.securitytracker.com/id/1040681nvdThird Party AdvisoryVDB Entry
access.redhat.com/errata/RHSA-2018:1192nvdThird Party Advisory
rt.perl.org/Public/Bug/Display.htmlnvdVendor Advisory
usn.ubuntu.com/3625-1/nvdThird Party Advisory
www.debian.org/security/2018/dsa-4172nvdThird Party Advisory
security.gentoo.org/glsa/201909-01nvd
www.oracle.com/security-alerts/cpujul2020.htmlnvd

News mentions

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cvss	0.488
epss	0.003
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000