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CVE-2018-18311

Publication date 29 November 2018

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

9.8 · Critical

Score breakdown

Perl before 5.26.3 and 5.28.x before 5.28.1 has a buffer overflow via a crafted regular expression that triggers invalid write operations.

Read the notes from the security team

Status

Package Ubuntu Release Status
perl 18.10 cosmic
Fixed 5.26.2-7ubuntu0.1
18.04 LTS bionic
Fixed 5.26.1-6ubuntu0.3
16.04 LTS xenial
Fixed 5.22.1-9ubuntu0.6
14.04 LTS trusty
Fixed 5.18.2-2ubuntu1.7

Notes

upstream

5.8.0 - 5.26 (introduced in e658793210bb)

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