usn-8414-2
Vulnerability from osv_ubuntu
Published
2026-06-09 18:29
Modified
2026-06-30 15:55
Summary
openssl, openssl1.0 vulnerabilities
Details

USN-8414-1 fixed several vulnerabilities in OpenSSL. This update provides the corresponding update for Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS.

Original advisory details:

Frank Buss discovered that OpenSSL had a heap buffer over-read in ASN.1 content parsing. An attacker could possibly use this issue to cause OpenSSL to crash, resulting in a denial of service, or obtain sensitive information. (CVE-2026-34180)

Asim Viladi Oglu Manizada and Alex Gaynor discovered that OpenSSL could accept forged CMS AuthEnvelopedData messages. An attacker could possibly use this issue to bypass message authentication checks. (CVE-2026-34182)

Mayank Jangid, Kushal Khemka, Hari Priandana, Bhabani Sankar Das, and Qifan Zhang discovered that OpenSSL had a possible NULL dereference in password- based CMS decryption. An attacker could possibly use this issue to cause OpenSSL to crash, resulting in a denial of service. (CVE-2026-42766)

Zhanpeng Liu, Guannan Wang, and Guancheng Li discovered that OpenSSL had a NULL pointer dereference in CRMF EncryptedValue decryption. An attacker could possibly use this issue to cause OpenSSL to crash, resulting in a denial of service. (CVE-2026-42767)

Thai Duong discovered that OpenSSL had a heap use-after-free in PKCS7_verify(). An attacker could possibly use this issue to cause OpenSSL to crash, resulting in a denial of service, or execute arbitrary code. (CVE-2026-45447)

Zehua Qiao and Jinwen He discovered that OpenSSL had a possible heap buffer overflow in ASN.1 multibyte string conversion. An attacker could possibly use this issue to cause OpenSSL to crash, resulting in a denial of service, or execute arbitrary code. (CVE-2026-7383)

Bhabani Sankar Das discovered that OpenSSL had an out-of-bounds read in CMS password-based decryption. An attacker could possibly use this issue to cause OpenSSL to crash, resulting in a denial of service. (CVE-2026-9076)

References
To clipboard 

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              "id": "CVE-2026-34180",
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                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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        "1.1.1-1ubuntu2.1~18.04.23",
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        "1.1.1-1ubuntu2.1~18.04.23+esm6",
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        "1.1.1-1ubuntu2.1~18.04.23+esm8"
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    },
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                },
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              ]
            },
            {
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                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-34180",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-42766",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-45447",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libssl1.0.0",
            "binary_version": "1.0.2n-1ubuntu5.13+esm5"
          },
          {
            "binary_name": "openssl1.0",
            "binary_version": "1.0.2n-1ubuntu5.13+esm5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "openssl1.0",
        "purl": "pkg:deb/ubuntu/openssl1.0@1.0.2n-1ubuntu5.13+esm5?arch=source\u0026distro=esm-infra/bionic"
      },
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        {
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        "1.0.2n-1ubuntu5.1",
        "1.0.2n-1ubuntu5.2",
        "1.0.2n-1ubuntu5.3",
        "1.0.2n-1ubuntu5.4",
        "1.0.2n-1ubuntu5.5",
        "1.0.2n-1ubuntu5.6",
        "1.0.2n-1ubuntu5.7",
        "1.0.2n-1ubuntu5.8",
        "1.0.2n-1ubuntu5.9",
        "1.0.2n-1ubuntu5.10",
        "1.0.2n-1ubuntu5.11",
        "1.0.2n-1ubuntu5.12",
        "1.0.2n-1ubuntu5.13",
        "1.0.2n-1ubuntu5.13+esm1",
        "1.0.2n-1ubuntu5.13+esm2",
        "1.0.2n-1ubuntu5.13+esm3",
        "1.0.2n-1ubuntu5.13+esm4"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-7383",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-9076",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-34180",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-42766",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-45447",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libssl1.1",
            "binary_version": "1.1.1f-1ubuntu2.24+esm4"
          },
          {
            "binary_name": "openssl",
            "binary_version": "1.1.1f-1ubuntu2.24+esm4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "openssl",
        "purl": "pkg:deb/ubuntu/openssl@1.1.1f-1ubuntu2.24+esm4?arch=source\u0026distro=esm-infra/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.1.1f-1ubuntu2.24+esm4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.1.1c-1ubuntu4",
        "1.1.1d-2ubuntu3",
        "1.1.1d-2ubuntu6",
        "1.1.1f-1ubuntu1",
        "1.1.1f-1ubuntu2",
        "1.1.1f-1ubuntu2.1",
        "1.1.1f-1ubuntu2.2",
        "1.1.1f-1ubuntu2.3",
        "1.1.1f-1ubuntu2.4",
        "1.1.1f-1ubuntu2.5",
        "1.1.1f-1ubuntu2.8",
        "1.1.1f-1ubuntu2.9",
        "1.1.1f-1ubuntu2.10",
        "1.1.1f-1ubuntu2.11",
        "1.1.1f-1ubuntu2.12",
        "1.1.1f-1ubuntu2.13",
        "1.1.1f-1ubuntu2.15",
        "1.1.1f-1ubuntu2.16",
        "1.1.1f-1ubuntu2.17",
        "1.1.1f-1ubuntu2.18",
        "1.1.1f-1ubuntu2.19",
        "1.1.1f-1ubuntu2.20",
        "1.1.1f-1ubuntu2.21",
        "1.1.1f-1ubuntu2.22",
        "1.1.1f-1ubuntu2.23",
        "1.1.1f-1ubuntu2.24",
        "1.1.1f-1ubuntu2.24+esm1",
        "1.1.1f-1ubuntu2.24+esm2",
        "1.1.1f-1ubuntu2.24+esm3"
      ]
    }
  ],
  "aliases": [],
  "details": "USN-8414-1 fixed several vulnerabilities in OpenSSL. This update provides\nthe corresponding update for Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu\n18.04 LTS, and Ubuntu 20.04 LTS.\n\n Original advisory details:\n\nFrank Buss discovered that OpenSSL had a heap buffer over-read in ASN.1\ncontent parsing. An attacker could possibly use this issue to cause OpenSSL\nto crash, resulting in a denial of service, or obtain sensitive\ninformation. (CVE-2026-34180)\n\nAsim Viladi Oglu Manizada and Alex Gaynor discovered that OpenSSL could\naccept forged CMS AuthEnvelopedData messages. An attacker could possibly\nuse this issue to bypass message authentication checks. (CVE-2026-34182)\n\nMayank Jangid, Kushal Khemka, Hari Priandana, Bhabani Sankar Das, and Qifan\nZhang discovered that OpenSSL had a possible NULL dereference in password-\nbased CMS decryption. An attacker could possibly use this issue to cause\nOpenSSL to crash, resulting in a denial of service. (CVE-2026-42766)\n\nZhanpeng Liu, Guannan Wang, and Guancheng Li discovered that OpenSSL had a\nNULL pointer dereference in CRMF EncryptedValue decryption. An attacker\ncould possibly use this issue to cause OpenSSL to crash, resulting in a\ndenial of service. (CVE-2026-42767)\n\nThai Duong discovered that OpenSSL had a heap use-after-free in\nPKCS7_verify(). An attacker could possibly use this issue to cause OpenSSL\nto crash, resulting in a denial of service, or execute arbitrary code.\n(CVE-2026-45447)\n\nZehua Qiao and Jinwen He discovered that OpenSSL had a possible heap buffer\noverflow in ASN.1 multibyte string conversion. An attacker could possibly\nuse this issue to cause OpenSSL to crash, resulting in a denial of service,\nor execute arbitrary code. (CVE-2026-7383)\n\nBhabani Sankar Das discovered that OpenSSL had an out-of-bounds read in CMS\npassword-based decryption. An attacker could possibly use this issue to\ncause OpenSSL to crash, resulting in a denial of service. (CVE-2026-9076)",
  "id": "USN-8414-2",
  "modified": "2026-06-30T15:55:21Z",
  "published": "2026-06-09T18:29:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8414-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-7383"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-9076"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-34180"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-34182"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-42766"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-45447"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "openssl, openssl1.0 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2026-7383",
    "UBUNTU-CVE-2026-9076",
    "UBUNTU-CVE-2026-34180",
    "UBUNTU-CVE-2026-34182",
    "UBUNTU-CVE-2026-42766",
    "UBUNTU-CVE-2026-45447"
  ]
}



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Taxonomy of the tags.





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.