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

CVE-2018-18314

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

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

CRITICAL · CVSS 9.8 EPSS 0.05205
Act now
  • EPSS percentile: top 10% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules2 YARA rules0
⬡

Weakness Classification

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
▤

Affected Products & Versions

8
perl< 5.26.3
canonical ubuntu linuxall versions
debian linuxall versions
netapp e-series santricity os controller>= 11.0 and <= 11.40
netapp snap creator frameworkall versions
netapp snapcenterall versions
netapp snapdriveall versions
redhat enterprise linuxall versions
⚠

Public Exploits & PoCs

1
pocrt.perl.org · Display.html?id=131649rt.perl.org
◈

Sigma Hunt Rules

2
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighPotential Perl Reverse Shell Execution
productmediumPerl Inline Command Execution
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.0 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD07 Dec 2018 · 09:29 PM
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

5
rhsaRHSA-2026:7604Moderate
suse-csafSUSE-SU-2018:4187-1
usnUSN-3834-1
rhsaRHSA-2019:0001Important
rhsaRHSA-2019:0010Important
🔗

References & Sources

11
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.securityfocus.com/bid/106145Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1042181Third Party AdvisoryVDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1646751Issue TrackingPatchThird Party Advisory
https://github.com/Perl/perl5/commit/19a498a461d7c81ae3507c450953d1148efecf4fPatchThird 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
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