USN-8467-2

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Source
https://ubuntu.com/security/notices/USN-8467-2
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8467-2.json
JSON Data
https://api.osv.dev/v1/vulns/USN-8467-2
Upstream
Published
2026-07-02T06:15:19Z
Modified
2026-07-02T13:49:32.190074256Z
Summary
perl vulnerabilities
Details

USN-8467-1 fixed vulnerabilities in Perl. This update provides the corresponding fix for Perl on Ubuntu 25.10.

Original advisory details: It was discovered that Perl's Archive::Tar module incorrectly handled symlink and hardlink targets during extraction. An attacker could use this issue to read or overwrite arbitrary files outside the extraction directory. (CVE-2026-42496) It was discovered that Perl had a heap buffer overflow when compiling regular expressions with a repeated fixed string on 32-bit builds. An attacker could use this issue to cause a denial of service or possibly execute arbitrary code. (CVE-2026-8376)

References

Affected packages

Ubuntu:25.10 / perl

Package

Name
perl
Purl
pkg:deb/ubuntu/perl?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.40.1-6ubuntu0.1

Affected versions

5.*
5.40.1-2
5.40.1-3
5.40.1-5
5.40.1-6
5.40.1-6build1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libperl5.40",
            "binary_version": "5.40.1-6ubuntu0.1"
        },
        {
            "binary_name": "perl",
            "binary_version": "5.40.1-6ubuntu0.1"
        },
        {
            "binary_name": "perl-base",
            "binary_version": "5.40.1-6ubuntu0.1"
        },
        {
            "binary_name": "perl-debug",
            "binary_version": "5.40.1-6ubuntu0.1"
        },
        {
            "binary_name": "perl-modules-5.40",
            "binary_version": "5.40.1-6ubuntu0.1"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2026-8376"
        },
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2026-42496"
        }
    ],
    "ecosystem": "Ubuntu:25.10"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8467-2.json"