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CVE-2020-16154

Publication date 13 December 2021

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.8 · High

Score breakdown

The App::cpanminus package 1.7044 for Perl allows Signature Verification Bypass.

Mitigation

This issue can be mitigated if cpanminus is only used with trusted CPAN mirrors (https://www.cpan.org/ or https://cpan.metacpan.org/), ensuring that HTTPS is used for communication with the server. cpanm command can be used with --from option to specify the CPAN mirror as in 'cpnam --from https://www.cpan.org/' or the environment variable PERL_CPANM_OPT can be set to "--from https://www.cpan.org".

Status

Package Ubuntu Release Status
cpanminus 24.10 oracular
Not affected
24.04 LTS noble
Not affected
23.10 mantic
Not affected
23.04 lunar
Not affected
22.10 kinetic
Not affected
22.04 LTS jammy
Fixed 1.7045-1
21.10 impish Ignored end of life
21.04 hirsute Ignored end of life
20.04 LTS focal
18.04 LTS bionic
16.04 LTS xenial
14.04 LTS trusty Ignored end of standard support

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Patch details

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

Package Patch details
cpanminus

Severity score breakdown

Parameter Value
Base score 7.8 · High
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H