CVE-2023-31484

Publication date 29 April 2023

Last updated 24 July 2024

Ubuntu priority

Why this priority?

Cvss 3 Severity Score

Score breakdown

CPAN.pm before 2.35 does not verify TLS certificates when downloading distributions over HTTPS.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
perl	23.04 lunar	Fixed 5.36.0-7ubuntu0.23.04.1
	22.10 kinetic	Fixed 5.34.0-5ubuntu1.2
	22.04 LTS jammy	Fixed 5.34.0-3ubuntu1.2
	20.04 LTS focal	Fixed 5.30.0-9ubuntu0.4
	18.04 LTS bionic	Fixed 5.26.1-6ubuntu0.7
	16.04 LTS xenial	Fixed 5.22.1-9ubuntu0.9+esm2 Ubuntu Pro
	14.04 LTS trusty	Fixed 5.18.2-2ubuntu1.7+esm5 Ubuntu Pro

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Notes

ccdm94

the fix released to cpanpm (commit 9c98370) can be applied to the perl codebase to fix the issue. The perl upstream has fixed the issue through commit 96ea0b9b, which is actually an import of CPAN v2.36.

Patch details

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

Package	Patch details
perl	Upstream: 96ea0b9

Severity score breakdown

Parameter	Value
Base score	8.1 · High
Attack vector	Network
Attack complexity	High
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H