What’s Vulnerable › Vulnerabilities

CVE-2018-6913

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 10.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-04-17 · updated 2026-06-17
• Weakness: CWE-787

Description

Heap-based buffer overflow in the pack function in Perl before 5.26.2 allows context-dependent attackers to execute arbitrary code via a large item count.

Affected products

• Canonical Ubuntu Linux: 12.04, 14.04, 16.04, 17.10
• Debian Linux: 7.0, 8.0, 9.0
• perl: before 5.26.2 — fixed in 5.26.2

How to fix

Upgrade to a fixed version: perl 5.26.2. Check the vendor advisory for mitigations.

References

• http://www.securityfocus.com/bid/103953
• http://www.securitytracker.com/id/1040681
• https://lists.debian.org/debian-lts-announce/2018/04/msg00009.html
• https://rt.perl.org/Public/Bug/Display.html?id=131844
• https://security.gentoo.org/glsa/201909-01
• https://usn.ubuntu.com/3625-1/
• https://usn.ubuntu.com/3625-2/
• https://www.debian.org/security/2018/dsa-4172
• https://www.oracle.com/security-alerts/cpujul2020.html
• http://www.securityfocus.com/bid/103953
• http://www.securitytracker.com/id/1040681
• https://lists.debian.org/debian-lts-announce/2018/04/msg00009.html

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