CVE-2018-18312

Publication date 29 November 2018

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

Perl before 5.26.3 and 5.28.0 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

Show unmaintained releases

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	Not affected

Notes

upstream

5.18 - 5.28

mdeslaur

looks to me like this was introduced by: https://perl5.git.perl.org/perl.git/commit/6798c95dd27b33efd71f394c18649af7bbaf42b7 trusty doesn't look affected

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