USN-6517-1: Perl vulnerabilities

Releases

• Ubuntu 23.10
• Ubuntu 23.04
• Ubuntu 22.04 LTS
• Ubuntu 20.04 LTS

Packages

• perl - Practical Extraction and Report Language

Details

It was discovered that Perl incorrectly handled printing certain warning
messages. An attacker could possibly use this issue to cause Perl to
consume resources, leading to a denial of service. This issue only affected
Ubuntu 22.04 LTS. (CVE-2022-48522)

Nathan Mills discovered that Perl incorrectly handled certain regular
expressions. An attacker could use this issue to cause Perl to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2023-47038)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 23.10

• perl - 5.36.0-9ubuntu1.1

Ubuntu 23.04

• perl - 5.36.0-7ubuntu0.23.04.2

Ubuntu 22.04

• perl - 5.34.0-3ubuntu1.3

Ubuntu 20.04

• perl - 5.30.0-9ubuntu0.5

In general, a standard system update will make all the necessary changes.

References

• CVE-2022-48522
• CVE-2023-47038