ubuntu-cve-2026-47373
Vulnerability from osv_ubuntu
Published
2026-05-20 21:16
Modified
2026-06-11 04:43
Summary
Details

Crypt::SaltedHash versions through 0.09 for Perl is susceptible to timing attacks. These versions use Perl's built-in eq comparison. Discrepencies in timing could be used to guess the underlying hash.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libcrypt-saltedhash-perl",
            "binary_version": "0.09-1ubuntu0.16.04.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "libcrypt-saltedhash-perl",
        "purl": "pkg:deb/ubuntu/libcrypt-saltedhash-perl@0.09-1ubuntu0.16.04.1~esm1?arch=source\u0026distro=esm-apps-legacy/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.09-1",
        "0.09-1ubuntu0.16.04.1~esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libcrypt-saltedhash-perl",
            "binary_version": "0.09-1ubuntu0.18.04.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "libcrypt-saltedhash-perl",
        "purl": "pkg:deb/ubuntu/libcrypt-saltedhash-perl@0.09-1ubuntu0.18.04.1~esm1?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.09-1",
        "0.09-1ubuntu0.18.04.1~esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libcrypt-saltedhash-perl",
            "binary_version": "0.09-1ubuntu0.20.04.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "libcrypt-saltedhash-perl",
        "purl": "pkg:deb/ubuntu/libcrypt-saltedhash-perl@0.09-1ubuntu0.20.04.1~esm1?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.09-1",
        "0.09-1ubuntu0.20.04.1~esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libcrypt-saltedhash-perl",
            "binary_version": "0.09-1.1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:22.04:LTS",
        "name": "libcrypt-saltedhash-perl",
        "purl": "pkg:deb/ubuntu/libcrypt-saltedhash-perl@0.09-1.1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.09-1.1",
        "0.09-1.1ubuntu0.1~esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libcrypt-saltedhash-perl",
            "binary_version": "0.09-3ubuntu0.24.04.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:24.04:LTS",
        "name": "libcrypt-saltedhash-perl",
        "purl": "pkg:deb/ubuntu/libcrypt-saltedhash-perl@0.09-3ubuntu0.24.04.1~esm1?arch=source\u0026distro=esm-apps/noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.09-3",
        "0.09-3ubuntu0.24.04.1~esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libcrypt-saltedhash-perl",
            "binary_version": "0.09-3ubuntu0.25.10.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "libcrypt-saltedhash-perl",
        "purl": "pkg:deb/ubuntu/libcrypt-saltedhash-perl@0.09-3ubuntu0.25.10.1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.09-3",
        "0.09-3ubuntu0.25.10.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libcrypt-saltedhash-perl",
            "binary_version": "0.09-3ubuntu0.26.04.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:26.04:LTS",
        "name": "libcrypt-saltedhash-perl",
        "purl": "pkg:deb/ubuntu/libcrypt-saltedhash-perl@0.09-3ubuntu0.26.04.1~esm1?arch=source\u0026distro=esm-apps/resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.09-3",
        "0.09-3ubuntu0.26.04.1~esm1"
      ]
    }
  ],
  "aliases": [],
  "details": "Crypt::SaltedHash versions through 0.09 for Perl is susceptible to timing attacks. These versions use Perl\u0027s built-in eq comparison. Discrepencies in timing could be used to guess the underlying hash.",
  "id": "UBUNTU-CVE-2026-47373",
  "modified": "2026-06-11T04:43:02Z",
  "published": "2026-05-20T21:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-47373"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-47373"
    },
    {
      "type": "REPORT",
      "url": "https://lists.security.metacpan.org/cve-announce/msg/40249915/"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/robrwo/perl-Crypt-SaltedHash/commit/c07bfc5c23185b0667233d0f2e1252d81f1f027a.patch"
    },
    {
      "type": "REPORT",
      "url": "https://metacpan.org/release/RRWO/Crypt-SaltedHash-0.10/changes"
    },
    {
      "type": "REPORT",
      "url": "http://www.openwall.com/lists/oss-security/2026/05/20/21"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-47373"
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.