ubuntu-cve-2024-2236
Vulnerability from osv_ubuntu
Published
2024-03-06 22:15
Modified
2026-07-01 21:02
Summary
Details

A timing-based side-channel flaw was found in libgcrypt's RSA implementation. This issue may allow a remote attacker to initiate a Bleichenbacher-style attack, which can lead to the decryption of RSA ciphertexts.

Severity
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
N/A (UNKNOWN)
low
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libgcrypt11",
            "binary_version": "1.5.3-2ubuntu4.6+esm1"
          }
        ],
        "priority_reason": "libgcrypt developers consider this to be a low severity issue"
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "libgcrypt11",
        "purl": "pkg:deb/ubuntu/libgcrypt11@1.5.3-2ubuntu4.6+esm1?arch=source\u0026distro=esm-infra-legacy/trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.5.0-3ubuntu3",
        "1.5.3-2ubuntu1",
        "1.5.3-2ubuntu4",
        "1.5.3-2ubuntu4.1",
        "1.5.3-2ubuntu4.2",
        "1.5.3-2ubuntu4.3",
        "1.5.3-2ubuntu4.4",
        "1.5.3-2ubuntu4.5",
        "1.5.3-2ubuntu4.6",
        "1.5.3-2ubuntu4.6+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libgcrypt20",
            "binary_version": "1.6.5-2ubuntu0.6+esm1"
          }
        ],
        "priority_reason": "libgcrypt developers consider this to be a low severity issue"
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "libgcrypt20",
        "purl": "pkg:deb/ubuntu/libgcrypt20@1.6.5-2ubuntu0.6+esm1?arch=source\u0026distro=esm-infra/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.6.3-2ubuntu1",
        "1.6.4-3",
        "1.6.4-4",
        "1.6.4-5",
        "1.6.5-2",
        "1.6.5-2ubuntu0.2",
        "1.6.5-2ubuntu0.3",
        "1.6.5-2ubuntu0.4",
        "1.6.5-2ubuntu0.5",
        "1.6.5-2ubuntu0.6",
        "1.6.5-2ubuntu0.6+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libgcrypt20",
            "binary_version": "1.8.1-4ubuntu1.3"
          }
        ],
        "priority_reason": "libgcrypt developers consider this to be a low severity issue"
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "libgcrypt20",
        "purl": "pkg:deb/ubuntu/libgcrypt20@1.8.1-4ubuntu1.3?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
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        "1.7.9-1",
        "1.8.1-4",
        "1.8.1-4ubuntu1",
        "1.8.1-4ubuntu1.1",
        "1.8.1-4ubuntu1.2",
        "1.8.1-4ubuntu1.3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libgcrypt20",
            "binary_version": "1.8.1-4ubuntu1.fips.3"
          },
          {
            "binary_name": "libgcrypt20-hmac",
            "binary_version": "1.8.1-4ubuntu1.fips.3"
          }
        ],
        "priority_reason": "libgcrypt developers consider this to be a low severity issue"
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:FIPS-updates:18.04:LTS",
        "name": "libgcrypt20",
        "purl": "pkg:deb/ubuntu/libgcrypt20@1.8.1-4ubuntu1.fips.3?arch=source\u0026distro=fips-updates/bionic"
      },
      "ranges": [
        {
          "events": [
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            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
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        "1.8.1-4ubuntu1.fips.2.5",
        "1.8.1-4ubuntu1.fips.3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libgcrypt20",
            "binary_version": "1.8.1-4ubuntu1.fips.2.5"
          },
          {
            "binary_name": "libgcrypt20-hmac",
            "binary_version": "1.8.1-4ubuntu1.fips.2.5"
          }
        ],
        "priority_reason": "libgcrypt developers consider this to be a low severity issue"
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:FIPS:18.04:LTS",
        "name": "libgcrypt20",
        "purl": "pkg:deb/ubuntu/libgcrypt20@1.8.1-4ubuntu1.fips.2.5?arch=source\u0026distro=fips/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.8.1-4ubuntu1.fips.2.4",
        "1.8.1-4ubuntu1.fips.2.5"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libgcrypt20",
            "binary_version": "1.8.5-5ubuntu1.1"
          }
        ],
        "priority_reason": "libgcrypt developers consider this to be a low severity issue"
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "libgcrypt20",
        "purl": "pkg:deb/ubuntu/libgcrypt20@1.8.5-5ubuntu1.1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
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        "1.8.5-5ubuntu1.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libgcrypt20",
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          {
            "binary_name": "libgcrypt20-hmac",
            "binary_version": "1.8.5-5ubuntu1.fips.1.7"
          }
        ],
        "priority_reason": "libgcrypt developers consider this to be a low severity issue"
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:FIPS-updates:20.04:LTS",
        "name": "libgcrypt20",
        "purl": "pkg:deb/ubuntu/libgcrypt20@1.8.5-5ubuntu1.fips.1.7?arch=source\u0026distro=fips-updates/focal"
      },
      "ranges": [
        {
          "events": [
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            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
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        "1.8.5-5ubuntu1.fips.1.7"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libgcrypt20",
            "binary_version": "1.8.5-5ubuntu1.fips.1.4"
          },
          {
            "binary_name": "libgcrypt20-hmac",
            "binary_version": "1.8.5-5ubuntu1.fips.1.4"
          }
        ],
        "priority_reason": "libgcrypt developers consider this to be a low severity issue"
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:FIPS:20.04:LTS",
        "name": "libgcrypt20",
        "purl": "pkg:deb/ubuntu/libgcrypt20@1.8.5-5ubuntu1.fips.1.4?arch=source\u0026distro=fips/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
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      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libgcrypt20",
            "binary_version": "1.9.4-3ubuntu3.2"
          }
        ],
        "priority_reason": "libgcrypt developers consider this to be a low severity issue"
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "libgcrypt20",
        "purl": "pkg:deb/ubuntu/libgcrypt20@1.9.4-3ubuntu3.2?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
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        "1.9.4-3ubuntu2",
        "1.9.4-3ubuntu3",
        "1.9.4-3ubuntu3.2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libgcrypt20",
            "binary_version": "1.9.4-3ubuntu3+Fips1.2"
          },
          {
            "binary_name": "libgcrypt20-hmac",
            "binary_version": "1.9.4-3ubuntu3+Fips1.2"
          }
        ],
        "priority_reason": "libgcrypt developers consider this to be a low severity issue"
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:FIPS-preview:22.04:LTS",
        "name": "libgcrypt20",
        "purl": "pkg:deb/ubuntu/libgcrypt20@1.9.4-3ubuntu3+Fips1.2?arch=source\u0026distro=fips-preview/jammy"
      },
      "ranges": [
        {
          "events": [
            {
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            }
          ],
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        "1.9.4-3ubuntu3+Fips1.1",
        "1.9.4-3ubuntu3+Fips1.2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libgcrypt20",
            "binary_version": "1.9.4-3ubuntu3.2+Fips1"
          },
          {
            "binary_name": "libgcrypt20-hmac",
            "binary_version": "1.9.4-3ubuntu3.2+Fips1"
          }
        ],
        "priority_reason": "libgcrypt developers consider this to be a low severity issue"
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:FIPS-updates:22.04:LTS",
        "name": "libgcrypt20",
        "purl": "pkg:deb/ubuntu/libgcrypt20@1.9.4-3ubuntu3.2+Fips1?arch=source\u0026distro=fips-updates/jammy"
      },
      "ranges": [
        {
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        "1.9.4-3ubuntu3+Fips1.4",
        "1.9.4-3ubuntu3.2+Fips1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libgcrypt20",
            "binary_version": "1.10.3-2ubuntu0.1"
          }
        ],
        "priority_reason": "libgcrypt developers consider this to be a low severity issue"
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "libgcrypt20",
        "purl": "pkg:deb/ubuntu/libgcrypt20@1.10.3-2ubuntu0.1?arch=source\u0026distro=noble"
      },
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      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libgcrypt-bin",
            "binary_version": "1.12.0-2ubuntu0.1~Fips1~rc11"
          },
          {
            "binary_name": "libgcrypt20",
            "binary_version": "1.12.0-2ubuntu0.1~Fips1~rc11"
          }
        ],
        "priority_reason": "libgcrypt developers consider this to be a low severity issue"
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:FIPS-updates:24.04:LTS",
        "name": "libgcrypt20",
        "purl": "pkg:deb/ubuntu/libgcrypt20@1.12.0-2ubuntu0.1~Fips1~rc11?arch=source\u0026distro=fips-updates/noble"
      },
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        "1.10.3-2ubuntu0.1~Fips1~rc7",
        "1.12.0-2ubuntu0.1~Fips1~rc11"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libgcrypt-bin",
            "binary_version": "1.11.0-7ubuntu0.1"
          },
          {
            "binary_name": "libgcrypt20",
            "binary_version": "1.11.0-7ubuntu0.1"
          }
        ],
        "priority_reason": "libgcrypt developers consider this to be a low severity issue"
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "libgcrypt20",
        "purl": "pkg:deb/ubuntu/libgcrypt20@1.11.0-7ubuntu0.1?arch=source\u0026distro=questing"
      },
      "ranges": [
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          ],
          "type": "ECOSYSTEM"
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      ],
      "versions": [
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        "1.11.0-7",
        "1.11.0-7build1",
        "1.11.0-7ubuntu0.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libgcrypt-bin",
            "binary_version": "1.12.0-2ubuntu1"
          },
          {
            "binary_name": "libgcrypt20",
            "binary_version": "1.12.0-2ubuntu1"
          }
        ],
        "priority_reason": "libgcrypt developers consider this to be a low severity issue"
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "libgcrypt20",
        "purl": "pkg:deb/ubuntu/libgcrypt20@1.12.0-2ubuntu1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.11.0-7build1",
        "1.11.2-2",
        "1.11.2-3",
        "1.12.0-2",
        "1.12.0-2ubuntu0.1",
        "1.12.0-2ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "A timing-based side-channel flaw was found in libgcrypt\u0027s RSA implementation. This issue may allow a remote attacker to initiate a Bleichenbacher-style attack, which can lead to the decryption of RSA ciphertexts.",
  "id": "UBUNTU-CVE-2024-2236",
  "modified": "2026-07-01T21:02:03Z",
  "published": "2024-03-06T22:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-2236"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2024-2236"
    },
    {
      "type": "REPORT",
      "url": "https://lists.gnupg.org/pipermail/gcrypt-devel/2024-March/005607.html"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/tomato42/marvin-toolkit/tree/master/example/libgcrypt"
    },
    {
      "type": "REPORT",
      "url": "https://dev.gnupg.org/T7136"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-2236"
    },
    {
      "type": "REPORT",
      "url": "https://gitlab.com/redhat-crypto/libgcrypt/libgcrypt-mirror/-/merge_requests/17"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2024-2236"
  ]
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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