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CVE-2023-47038

Published: 25 November 2023

A vulnerability was found in perl. This issue occurs when a crafted regular
expression is compiled by perl, which can allow an attacker controlled byte
buffer overflow in a heap allocated buffer.


PRIORITY

Medium


CVSS 3 SEVERITY SCORE

7.8

Score breakdown


STATUS

Package Release Status perl
Launchpad, Ubuntu, Debian bionic Not vulnerable

(code not present)
focal

Released (5.30.0-9ubuntu0.5)
jammy

Released (5.34.0-3ubuntu1.3)
lunar

Released (5.36.0-7ubuntu0.23.04.2)
mantic

Released (5.36.0-9ubuntu1.1)
noble

Released (5.36.0-10ubuntu1)
trusty Not vulnerable

(code not present)
upstream Needs triage


xenial Not vulnerable

(code not present)
Patches:
upstream:
https://github.com/Perl/perl5/commit/ff1f9f59360afeebd6f75ca1502f5c3ebf077da3
perl6
Launchpad, Ubuntu, Debian bionic Needs triage


focal Needs triage


jammy Does not exist


lunar Does not exist


mantic Does not exist


noble Does not exist


trusty Ignored

(end of standard support)
upstream Needs triage


xenial Ignored

(end of standard support)
raku
Launchpad, Ubuntu, Debian bionic Ignored

(end of standard support)
focal Does not exist


jammy Does not exist


lunar Ignored

(end of life, was needs-triage)
mantic Needs triage


noble Needs triage


trusty Ignored

(end of standard support)
upstream Needs triage


xenial Ignored

(end of standard support)



SEVERITY SCORE BREAKDOWN

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


REFERENCES

 * https://ubuntu.com/security/notices/USN-6517-1
 * https://www.cve.org/CVERecord?id=CVE-2023-47038
 * NVD
 * Launchpad
 * Debian


JOIN THE DISCUSSION

 * Ubuntu security updates mailing list
 * Security announcements mailing list


CANONICAL IS OFFERING EXPANDED SECURITY MAINTENANCE

Canonical is offering Ubuntu Expanded Security Maintenance (ESM) for security
fixes and essential packages.

Find out more about ESM ›


FURTHER READING

 * An overview of machine learning security risks
 * What’s new in security for Ubuntu 24.04 LTS?
 * Canonical at America Digital Congress in Chile
 * Canonical’s showcase at HPE Tech Jam 2024
 * Ubuntu Explained: How to ensure security and stability in cloud
   instances—part 3

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