CVE-2018-6913

Publication date 14 April 2018

Last updated 25 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

9.8 · Critical

Score breakdown

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.

Read the notes from the security team

Status

Package Ubuntu Release Status
perl 17.10 artful
Fixed 5.26.0-8ubuntu1.1
16.04 LTS xenial
Fixed 5.22.1-9ubuntu0.3
14.04 LTS trusty
Fixed 5.18.2-2ubuntu1.4

Notes

ratliff

Fix developed by Tony Cook

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
perl

Severity score breakdown

Parameter Value
Base score 9.8 · Critical
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

Other references