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usn-8736-2
Vulnerability from osv_ubuntu
Published
2026-09-16 14:37
Modified
2026-09-16 14:37
Summary
perl vulnerabilities
Details

USN-8736-1 fixed vulnerabilities in Perl. This update provides the corresponding fix for Perl on Ubuntu 24.04 LTS.

Original advisory details:

It was discovered that Perl incorrectly handled certain large inputs during regular expression matching. An attacker could possibly use this issue to trigger out-of-bounds heap reads or writes, resulting in a denial of service or arbitrary code execution. (CVE-2026-15534)

It was discovered that Perl incorrectly handled certain regular expression containing alternative matching branches. An attacker could possibly use this issue to cause incorrect regular expression matches, resulting in security restrictions being bypassed. (CVE-2026-19487)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-15534",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-19487",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:24.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libperl5.38t64",
            "binary_version": "5.38.2-3.2ubuntu0.6"
          },
          {
            "binary_name": "perl",
            "binary_version": "5.38.2-3.2ubuntu0.6"
          },
          {
            "binary_name": "perl-base",
            "binary_version": "5.38.2-3.2ubuntu0.6"
          },
          {
            "binary_name": "perl-debug",
            "binary_version": "5.38.2-3.2ubuntu0.6"
          },
          {
            "binary_name": "perl-modules-5.38",
            "binary_version": "5.38.2-3.2ubuntu0.6"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "perl",
        "purl": "pkg:deb/ubuntu/perl@5.38.2-3.2ubuntu0.6?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.38.2-3.2ubuntu0.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.36.0-9ubuntu1",
        "5.36.0-10ubuntu1",
        "5.38.2-3",
        "5.38.2-3.2",
        "5.38.2-3.2build1",
        "5.38.2-3.2build2",
        "5.38.2-3.2build2.1",
        "5.38.2-3.2ubuntu0.1",
        "5.38.2-3.2ubuntu0.2",
        "5.38.2-3.2ubuntu0.3",
        "5.38.2-3.2ubuntu0.4"
      ]
    }
  ],
  "aliases": [],
  "details": "USN-8736-1 fixed vulnerabilities in Perl. This update provides the\ncorresponding fix for Perl on Ubuntu 24.04 LTS.\n\nOriginal advisory details:\n\nIt was discovered that Perl incorrectly handled certain large inputs during\nregular expression matching. An attacker could possibly use this issue to\ntrigger out-of-bounds heap reads or writes, resulting in a denial of\nservice or arbitrary code execution. (CVE-2026-15534)\n\nIt was discovered that Perl incorrectly handled certain regular expression\ncontaining alternative matching branches. An attacker could  possibly use\nthis issue to cause incorrect regular expression matches, resulting in\nsecurity restrictions being bypassed. (CVE-2026-19487)",
  "id": "USN-8736-2",
  "modified": "2026-09-16T14:37:44Z",
  "published": "2026-09-16T14:37:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8736-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-15534"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-19487"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "perl vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2026-15534",
    "UBUNTU-CVE-2026-19487"
  ]
}



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