Vulnerability-Lookup

ubuntu-cve-2020-12399

Vulnerability from osv_ubuntu

Published

2020-05-26 00:00

Modified

2026-04-22 07:39

Summary

Details

NSS has shown timing differences when performing DSA signatures, which was exploitable and could eventually leak private keys. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.

Severity

4.4 (Medium)


                    
                      CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2020-12399	REPORT
	https://developer.mozilla.org/en-US/docs/Mozilla/…	REPORT
	https://developer.mozilla.org/en-US/docs/Mozilla/…	REPORT
	https://www.mozilla.org/en-US/security/advisories…	REPORT
	https://ubuntu.com/security/notices/USN-4383-1	ADVISORY
	https://ubuntu.com/security/notices/USN-4397-1	ADVISORY
	https://ubuntu.com/security/notices/USN-4397-2	ADVISORY
	https://ubuntu.com/security/notices/USN-4421-1	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2020-12399	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libnss3",
            "binary_version": "2:3.28.4-0ubuntu0.14.04.5+esm5"
          },
          {
            "binary_name": "libnss3-1d",
            "binary_version": "2:3.28.4-0ubuntu0.14.04.5+esm5"
          },
          {
            "binary_name": "libnss3-nssdb",
            "binary_version": "2:3.28.4-0ubuntu0.14.04.5+esm5"
          },
          {
            "binary_name": "libnss3-tools",
            "binary_version": "2:3.28.4-0ubuntu0.14.04.5+esm5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "nss",
        "purl": "pkg:deb/ubuntu/nss@2:3.28.4-0ubuntu0.14.04.5+esm5?arch=source\u0026distro=trusty/esm"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:3.28.4-0ubuntu0.14.04.5+esm5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:3.15.1-1ubuntu1",
        "2:3.15.2-1",
        "2:3.15.3-1",
        "2:3.15.3.1-1",
        "2:3.15.3.1-1.1",
        "2:3.15.3.1-1.1ubuntu1",
        "2:3.15.4-1ubuntu3",
        "2:3.15.4-1ubuntu4",
        "2:3.15.4-1ubuntu5",
        "2:3.15.4-1ubuntu6",
        "2:3.15.4-1ubuntu7",
        "2:3.15.4-1ubuntu7.1",
        "2:3.17-0ubuntu0.14.04.1",
        "2:3.17.1-0ubuntu0.14.04.1",
        "2:3.17.1-0ubuntu0.14.04.2",
        "2:3.17.4-0ubuntu0.14.04.1",
        "2:3.19.2-0ubuntu0.14.04.1",
        "2:3.19.2.1-0ubuntu0.14.04.1",
        "2:3.19.2.1-0ubuntu0.14.04.2",
        "2:3.21-0ubuntu0.14.04.1",
        "2:3.21-0ubuntu0.14.04.2",
        "2:3.23-0ubuntu0.14.04.1",
        "2:3.26.2-0ubuntu0.14.04.3",
        "2:3.28.4-0ubuntu0.14.04.1",
        "2:3.28.4-0ubuntu0.14.04.2",
        "2:3.28.4-0ubuntu0.14.04.3",
        "2:3.28.4-0ubuntu0.14.04.4",
        "2:3.28.4-0ubuntu0.14.04.5",
        "2:3.28.4-0ubuntu0.14.04.5+esm1",
        "2:3.28.4-0ubuntu0.14.04.5+esm2",
        "2:3.28.4-0ubuntu0.14.04.5+esm3",
        "2:3.28.4-0ubuntu0.14.04.5+esm4"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "firefox",
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          {
            "binary_name": "firefox-geckodriver",
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          },
          {
            "binary_name": "firefox-mozsymbols",
            "binary_version": "77.0.1+build1-0ubuntu0.16.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "firefox",
        "purl": "pkg:deb/ubuntu/firefox@77.0.1+build1-0ubuntu0.16.04.1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
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            {
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          ],
          "type": "ECOSYSTEM"
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        "67.0.3+build1-0ubuntu0.16.04.1",
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        "68.0+build3-0ubuntu0.16.04.1",
        "68.0.1+build1-0ubuntu0.16.04.1",
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        "69.0.1+build1-0ubuntu0.16.04.1",
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          {
            "binary_name": "libnss3",
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          {
            "binary_name": "libnss3-1d",
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          {
            "binary_name": "libnss3-nssdb",
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          {
            "binary_name": "libnss3-tools",
            "binary_version": "2:3.28.4-0ubuntu0.16.04.11"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "nss",
        "purl": "pkg:deb/ubuntu/nss@2:3.28.4-0ubuntu0.16.04.11?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:3.28.4-0ubuntu0.16.04.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
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      "versions": [
        "2:3.19.2-1ubuntu1",
        "2:3.19.2.1-0ubuntu1",
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        "availability": "No subscription required",
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            "binary_name": "thunderbird",
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            "binary_name": "thunderbird-gnome-support",
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            "binary_name": "xul-ext-calendar-timezones",
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            "binary_name": "xul-ext-gdata-provider",
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        ]
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        ]
      },
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      },
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            "binary_version": "1:68.10.0+build1-0ubuntu0.18.04.1"
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            "binary_name": "xul-ext-calendar-timezones",
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            "binary_name": "xul-ext-gdata-provider",
            "binary_version": "1:68.10.0+build1-0ubuntu0.18.04.1"
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          {
            "binary_name": "xul-ext-lightning",
            "binary_version": "1:68.10.0+build1-0ubuntu0.18.04.1"
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        ]
      },
      "package": {
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      ]
    }
  ],
  "aliases": [],
  "details": "NSS has shown timing differences when performing DSA signatures, which was exploitable and could eventually leak private keys. This vulnerability affects Thunderbird \u003c 68.9.0, Firefox \u003c 77, and Firefox ESR \u003c 68.9.",
  "id": "UBUNTU-CVE-2020-12399",
  "modified": "2026-04-22T07:39:23Z",
  "published": "2020-05-26T00:00:00Z",
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    },
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      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2020-12399"
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  "related": [
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    "USN-4397-1",
    "USN-4397-2",
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      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
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    "CVE-2020-12399"
  ]
}

CVE-2020-12399 (GCVE-0-2020-12399)

Vulnerability from cvelistv5 – Published: 2020-07-09 14:52 – Updated: 2024-08-04 11:56

Summary

Severity

No CVSS data available.

CWE

Timing attack on DSA signatures in NSS library

Assigner

mozilla

References

8 references

URL	Tags
https://www.mozilla.org/security/advisories/mfsa2…	x_refsource_MISC
https://www.mozilla.org/security/advisories/mfsa2…	x_refsource_MISC
https://www.mozilla.org/security/advisories/mfsa2…	x_refsource_MISC
https://bugzilla.mozilla.org/show_bug.cgi?id=1631576	x_refsource_MISC
https://www.debian.org/security/2020/dsa-4726	vendor-advisoryx_refsource_DEBIAN
https://usn.ubuntu.com/4421-1/	vendor-advisoryx_refsource_UBUNTU
https://security.gentoo.org/glsa/202007-49	vendor-advisoryx_refsource_GENTOO
https://lists.debian.org/debian-lts-announce/2020…	mailing-listx_refsource_MLIST

Impacted products

3 products

Vendor	Product	Version
Mozilla	Thunderbird	Affected: unspecified , < 68.9.0 (custom)
Mozilla	Firefox	Affected: unspecified , < 77 (custom)
Mozilla	Firefox ESR	Affected: unspecified , < 68.9 (custom)

Show details on NVD website

JSON

To clipboard

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usn-4383-1

Vulnerability from osv_ubuntu

Published

2020-06-04 20:26

Modified

2026-04-22 07:36

Summary

firefox vulnerabilities

Details

Multiple security issues were discovered in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, spoof the addressbar, or execute arbitrary code. (CVE-2020-12405, CVE-2020-12406, CVE-2020-12407, CVE-2020-12408, CVE-2020-12409, CVE-2020-12410, CVE-2020-12411)

It was discovered that NSS showed timing differences when performing DSA signatures. An attacker could potentially exploit this to obtain private keys using a timing attack. (CVE-2020-12399)

References

URL

Type

	https://ubuntu.com/security/notices/USN-4383-1	ADVISORY
	https://ubuntu.com/security/CVE-2020-12399	REPORT
	https://ubuntu.com/security/CVE-2020-12405	REPORT
	https://ubuntu.com/security/CVE-2020-12406	REPORT
	https://ubuntu.com/security/CVE-2020-12407	REPORT
	https://ubuntu.com/security/CVE-2020-12408	REPORT
	https://ubuntu.com/security/CVE-2020-12409	REPORT
	https://ubuntu.com/security/CVE-2020-12410	REPORT
	https://ubuntu.com/security/CVE-2020-12411	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2020-12399",
              "severity": [
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            {
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              "severity": [
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                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
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                  "score": "low",
                  "type": "Ubuntu"
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              ]
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            {
              "id": "CVE-2020-12409",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
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            {
              "id": "CVE-2020-12410",
              "severity": [
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                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
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            {
              "id": "CVE-2020-12411",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
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          "ecosystem": "Ubuntu:16.04:LTS"
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                  "type": "CVSS_V3"
                },
                {
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              "severity": [
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                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12406",
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                {
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                  "type": "CVSS_V3"
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                  "type": "Ubuntu"
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                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12408",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
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              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
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            },
            {
              "id": "CVE-2020-12410",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
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              "id": "CVE-2020-12411",
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                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
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    },
    {
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              "id": "CVE-2020-12399",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12405",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12406",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12407",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12408",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12409",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12410",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12411",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "firefox",
            "binary_version": "77.0.1+build1-0ubuntu0.20.04.1"
          },
          {
            "binary_name": "firefox-geckodriver",
            "binary_version": "77.0.1+build1-0ubuntu0.20.04.1"
          },
          {
            "binary_name": "firefox-mozsymbols",
            "binary_version": "77.0.1+build1-0ubuntu0.20.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "firefox",
        "purl": "pkg:deb/ubuntu/firefox@77.0.1+build1-0ubuntu0.20.04.1?arch=source\u0026distro=focal"
      },
      "ranges": [
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            {
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            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
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        "70.0+build2-0ubuntu1",
        "70.0+build2-0ubuntu2",
        "70.0.1+build1-0ubuntu2",
        "71.0+build2-0ubuntu2",
        "71.0+build5-0ubuntu1",
        "72.0.1+build1-0ubuntu1",
        "72.0.2+build1-0ubuntu1",
        "73.0+build1-0ubuntu1",
        "73.0+build2-0ubuntu1",
        "73.0+build3-0ubuntu1",
        "73.0.1+build1-0ubuntu1",
        "74.0+build1-0ubuntu1",
        "74.0+build2-0ubuntu1",
        "74.0+build2-0ubuntu2",
        "74.0+build3-0ubuntu1",
        "75.0+build3-0ubuntu1",
        "76.0+build2-0ubuntu0.20.04.1",
        "76.0.1+build1-0ubuntu0.20.04.1"
      ]
    }
  ],
  "aliases": [],
  "details": "Multiple security issues were discovered in Firefox. If a user were\ntricked in to opening a specially crafted website, an attacker could\npotentially exploit these to cause a denial of service, spoof the\naddressbar, or execute arbitrary code. (CVE-2020-12405, CVE-2020-12406,\nCVE-2020-12407, CVE-2020-12408, CVE-2020-12409, CVE-2020-12410,\nCVE-2020-12411)\n\nIt was discovered that NSS showed timing differences when performing DSA\nsignatures. An attacker could potentially exploit this to obtain private\nkeys using a timing attack. (CVE-2020-12399)\n",
  "id": "USN-4383-1",
  "modified": "2026-04-22T07:36:38Z",
  "published": "2020-06-04T20:26:15Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4383-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12399"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12405"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12406"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12407"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12408"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12409"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12410"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12411"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "firefox vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2020-12399",
    "UBUNTU-CVE-2020-12405",
    "UBUNTU-CVE-2020-12406",
    "UBUNTU-CVE-2020-12407",
    "UBUNTU-CVE-2020-12408",
    "UBUNTU-CVE-2020-12409",
    "UBUNTU-CVE-2020-12410",
    "UBUNTU-CVE-2020-12411"
  ]
}

usn-4397-1

Vulnerability from osv_ubuntu

Published

2020-06-16 16:56

Modified

2026-04-22 07:36

Summary

nss vulnerabilities

Details

It was discovered that NSS incorrectly handled the TLS State Machine. A remote attacker could possibly use this issue to cause NSS to hang, resulting in a denial of service. This issue only affected Ubuntu 18.04 LTS and Ubuntu 19.10. (CVE-2019-17023)

Cesar Pereida Garcia discovered that NSS incorrectly handled DSA key generation. A local attacker could possibly use this issue to perform a timing attack and recover DSA keys. (CVE-2020-12399)

References

URL

Type

	https://ubuntu.com/security/notices/USN-4397-1	ADVISORY
	https://ubuntu.com/security/CVE-2019-17023	REPORT
	https://ubuntu.com/security/CVE-2020-12399	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2020-12399",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:16.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libnss3",
            "binary_version": "2:3.28.4-0ubuntu0.16.04.11"
          },
          {
            "binary_name": "libnss3-1d",
            "binary_version": "2:3.28.4-0ubuntu0.16.04.11"
          },
          {
            "binary_name": "libnss3-nssdb",
            "binary_version": "2:3.28.4-0ubuntu0.16.04.11"
          },
          {
            "binary_name": "libnss3-tools",
            "binary_version": "2:3.28.4-0ubuntu0.16.04.11"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "nss",
        "purl": "pkg:deb/ubuntu/nss@2:3.28.4-0ubuntu0.16.04.11?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:3.28.4-0ubuntu0.16.04.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:3.19.2-1ubuntu1",
        "2:3.19.2.1-0ubuntu1",
        "2:3.21-1ubuntu2",
        "2:3.21-1ubuntu3",
        "2:3.21-1ubuntu4",
        "2:3.23-0ubuntu0.16.04.1",
        "2:3.26.2-0ubuntu0.16.04.2",
        "2:3.28.4-0ubuntu0.16.04.1",
        "2:3.28.4-0ubuntu0.16.04.2",
        "2:3.28.4-0ubuntu0.16.04.3",
        "2:3.28.4-0ubuntu0.16.04.4",
        "2:3.28.4-0ubuntu0.16.04.5",
        "2:3.28.4-0ubuntu0.16.04.6",
        "2:3.28.4-0ubuntu0.16.04.8",
        "2:3.28.4-0ubuntu0.16.04.9",
        "2:3.28.4-0ubuntu0.16.04.10"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2019-17023",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12399",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libnss3",
            "binary_version": "2:3.35-2ubuntu2.8"
          },
          {
            "binary_name": "libnss3-tools",
            "binary_version": "2:3.35-2ubuntu2.8"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "nss",
        "purl": "pkg:deb/ubuntu/nss@2:3.35-2ubuntu2.8?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:3.35-2ubuntu2.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:3.32-1ubuntu3",
        "2:3.34-1ubuntu1",
        "2:3.35-2ubuntu2",
        "2:3.35-2ubuntu2.1",
        "2:3.35-2ubuntu2.2",
        "2:3.35-2ubuntu2.3",
        "2:3.35-2ubuntu2.5",
        "2:3.35-2ubuntu2.6",
        "2:3.35-2ubuntu2.7"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2020-12399",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libnss3",
            "binary_version": "2:3.49.1-1ubuntu1.1"
          },
          {
            "binary_name": "libnss3-tools",
            "binary_version": "2:3.49.1-1ubuntu1.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "nss",
        "purl": "pkg:deb/ubuntu/nss@2:3.49.1-1ubuntu1.1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:3.49.1-1ubuntu1.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:3.45-1ubuntu2",
        "2:3.47-1ubuntu1",
        "2:3.47-1ubuntu2",
        "2:3.48-1ubuntu1",
        "2:3.49.1-1ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that NSS incorrectly handled the TLS State Machine. A\nremote attacker could possibly use this issue to cause NSS to hang,\nresulting in a denial of service. This issue only affected Ubuntu 18.04 LTS\nand Ubuntu 19.10. (CVE-2019-17023)\n\nCesar Pereida Garcia discovered that NSS incorrectly handled DSA key\ngeneration. A local attacker could possibly use this issue to perform a\ntiming attack and recover DSA keys. (CVE-2020-12399)\n",
  "id": "USN-4397-1",
  "modified": "2026-04-22T07:36:38Z",
  "published": "2020-06-16T16:56:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4397-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-17023"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12399"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "nss vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2019-17023",
    "UBUNTU-CVE-2020-12399"
  ]
}

usn-4397-2

Vulnerability from osv_ubuntu

Published

2020-06-17 15:11

Modified

2026-04-22 07:36

Summary

nss vulnerability

Details

USN-4397-1 fixed a vulnerability in NSS. This update provides the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.

Original advisory details:

Cesar Pereida Garcia discovered that NSS incorrectly handled DSA key generation. A local attacker could possibly use this issue to perform a timing attack and recover DSA keys. (CVE-2020-12399)

References

URL

Type

	https://ubuntu.com/security/notices/USN-4397-2	ADVISORY
	https://ubuntu.com/security/CVE-2020-12399	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2020-12399",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:14.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libnss3",
            "binary_version": "2:3.28.4-0ubuntu0.14.04.5+esm5"
          },
          {
            "binary_name": "libnss3-1d",
            "binary_version": "2:3.28.4-0ubuntu0.14.04.5+esm5"
          },
          {
            "binary_name": "libnss3-nssdb",
            "binary_version": "2:3.28.4-0ubuntu0.14.04.5+esm5"
          },
          {
            "binary_name": "libnss3-tools",
            "binary_version": "2:3.28.4-0ubuntu0.14.04.5+esm5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "nss",
        "purl": "pkg:deb/ubuntu/nss@2:3.28.4-0ubuntu0.14.04.5+esm5?arch=source\u0026distro=trusty/esm"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:3.28.4-0ubuntu0.14.04.5+esm5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:3.15.1-1ubuntu1",
        "2:3.15.2-1",
        "2:3.15.3-1",
        "2:3.15.3.1-1",
        "2:3.15.3.1-1.1",
        "2:3.15.3.1-1.1ubuntu1",
        "2:3.15.4-1ubuntu3",
        "2:3.15.4-1ubuntu4",
        "2:3.15.4-1ubuntu5",
        "2:3.15.4-1ubuntu6",
        "2:3.15.4-1ubuntu7",
        "2:3.15.4-1ubuntu7.1",
        "2:3.17-0ubuntu0.14.04.1",
        "2:3.17.1-0ubuntu0.14.04.1",
        "2:3.17.1-0ubuntu0.14.04.2",
        "2:3.17.4-0ubuntu0.14.04.1",
        "2:3.19.2-0ubuntu0.14.04.1",
        "2:3.19.2.1-0ubuntu0.14.04.1",
        "2:3.19.2.1-0ubuntu0.14.04.2",
        "2:3.21-0ubuntu0.14.04.1",
        "2:3.21-0ubuntu0.14.04.2",
        "2:3.23-0ubuntu0.14.04.1",
        "2:3.26.2-0ubuntu0.14.04.3",
        "2:3.28.4-0ubuntu0.14.04.1",
        "2:3.28.4-0ubuntu0.14.04.2",
        "2:3.28.4-0ubuntu0.14.04.3",
        "2:3.28.4-0ubuntu0.14.04.4",
        "2:3.28.4-0ubuntu0.14.04.5",
        "2:3.28.4-0ubuntu0.14.04.5+esm1",
        "2:3.28.4-0ubuntu0.14.04.5+esm2",
        "2:3.28.4-0ubuntu0.14.04.5+esm3",
        "2:3.28.4-0ubuntu0.14.04.5+esm4"
      ]
    }
  ],
  "aliases": [],
  "details": "USN-4397-1 fixed a vulnerability in NSS. This update provides\nthe corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.\n\nOriginal advisory details:\n\n Cesar Pereida Garcia discovered that NSS incorrectly handled DSA key\n generation. A local attacker could possibly use this issue to perform a\n timing attack and recover DSA keys. (CVE-2020-12399)\n",
  "id": "USN-4397-2",
  "modified": "2026-04-22T07:36:38Z",
  "published": "2020-06-17T15:11:15Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4397-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12399"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "nss vulnerability",
  "upstream": [
    "UBUNTU-CVE-2020-12399"
  ]
}

usn-4421-1

Vulnerability from osv_ubuntu

Published

2020-07-08 17:07

Modified

2026-04-22 07:36

Summary

thunderbird vulnerabilities

Details

Multiple security issues were discovered in Thunderbird. If a user were tricked in to opening a specially crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information, or execute arbtirary code. (CVE-2020-12405, CVE-2020-12406, CVE-2020-12410, CVE-2020-12417, CVE-2020-12418, CVE-2020-12419, CVE-2020-12420)

It was discovered that Thunderbird would continue an unencrypted connection when configured to use STARTTLS for IMAP if the server responded with PREAUTH. A remote attacker could potentially exploit this to perform a person-in-the-middle attack in order to obtain sensitive information. (CVE-2020-12398)

It was discovered that NSS showed timing differences when performing DSA signatures. An attacker could potentially exploit this to obtain private keys using a timing attack. (CVE-2020-12399)

It was discovered that when performing add-on updates, certificate chains not terminating with built-in roots were silently rejected. This could result in add-ons becoming outdated. (CVE-2020-12421)

References

URL

Type

	https://ubuntu.com/security/notices/USN-4421-1	ADVISORY
	https://ubuntu.com/security/CVE-2020-12398	REPORT
	https://ubuntu.com/security/CVE-2020-12399	REPORT
	https://ubuntu.com/security/CVE-2020-12405	REPORT
	https://ubuntu.com/security/CVE-2020-12406	REPORT
	https://ubuntu.com/security/CVE-2020-12410	REPORT
	https://ubuntu.com/security/CVE-2020-12417	REPORT
	https://ubuntu.com/security/CVE-2020-12418	REPORT
	https://ubuntu.com/security/CVE-2020-12419	REPORT
	https://ubuntu.com/security/CVE-2020-12420	REPORT
	https://ubuntu.com/security/CVE-2020-12421	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2020-12398",
              "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"
                }
              ]
            },
            {
              "id": "CVE-2020-12399",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12405",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12406",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12410",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12417",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12418",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12419",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12420",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12421",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:16.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "thunderbird",
            "binary_version": "1:68.10.0+build1-0ubuntu0.16.04.1"
          },
          {
            "binary_name": "thunderbird-gnome-support",
            "binary_version": "1:68.10.0+build1-0ubuntu0.16.04.1"
          },
          {
            "binary_name": "thunderbird-mozsymbols",
            "binary_version": "1:68.10.0+build1-0ubuntu0.16.04.1"
          },
          {
            "binary_name": "xul-ext-calendar-timezones",
            "binary_version": "1:68.10.0+build1-0ubuntu0.16.04.1"
          },
          {
            "binary_name": "xul-ext-gdata-provider",
            "binary_version": "1:68.10.0+build1-0ubuntu0.16.04.1"
          },
          {
            "binary_name": "xul-ext-lightning",
            "binary_version": "1:68.10.0+build1-0ubuntu0.16.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "thunderbird",
        "purl": "pkg:deb/ubuntu/thunderbird@1:68.10.0+build1-0ubuntu0.16.04.1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:68.10.0+build1-0ubuntu0.16.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:38.3.0+build1-0ubuntu2",
        "1:38.5.1+build2-0ubuntu1",
        "1:38.6.0+build1-0ubuntu1",
        "1:38.7.2+build1-0ubuntu0.16.04.1",
        "1:38.8.0+build1-0ubuntu0.16.04.1",
        "1:45.2.0+build1-0ubuntu0.16.04.1",
        "1:45.3.0+build1-0ubuntu0.16.04.2",
        "1:45.4.0+build1-0ubuntu0.16.04.1",
        "1:45.5.1+build1-0ubuntu0.16.04.1",
        "1:45.7.0+build1-0ubuntu0.16.04.1",
        "1:45.8.0+build1-0ubuntu0.16.04.1",
        "1:52.1.1+build1-0ubuntu0.16.04.1",
        "1:52.2.1+build1-0ubuntu0.16.04.1",
        "1:52.3.0+build1-0ubuntu0.16.04.1",
        "1:52.4.0+build1-0ubuntu0.16.04.2",
        "1:52.5.0+build1-0ubuntu0.16.04.1",
        "1:52.6.0+build1-0ubuntu0.16.04.1",
        "1:52.7.0+build1-0ubuntu0.16.04.1",
        "1:52.8.0+build1-0ubuntu0.16.04.1",
        "1:52.9.1+build3-0ubuntu0.16.04.1",
        "1:60.2.1+build1-0ubuntu0.16.04.4",
        "1:60.4.0+build2-0ubuntu0.16.04.1",
        "1:60.5.1+build2-0ubuntu0.16.04.1",
        "1:60.6.1+build2-0ubuntu0.16.04.1",
        "1:60.7.0+build1-0ubuntu0.16.04.1",
        "1:60.7.1+build1-0ubuntu0.16.04.1",
        "1:60.7.2+build2-0ubuntu0.16.04.1",
        "1:60.8.0+build1-0ubuntu0.16.04.2",
        "1:60.9.0+build1-0ubuntu0.16.04.2",
        "1:60.9.1+build1-0ubuntu0.16.04.1",
        "1:68.7.0+build1-0ubuntu0.16.04.2",
        "1:68.8.0+build2-0ubuntu0.16.04.2"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2020-12398",
              "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"
                }
              ]
            },
            {
              "id": "CVE-2020-12399",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12405",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12406",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12410",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12417",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12418",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12419",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12420",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12421",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "thunderbird",
            "binary_version": "1:68.10.0+build1-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "thunderbird-gnome-support",
            "binary_version": "1:68.10.0+build1-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "thunderbird-mozsymbols",
            "binary_version": "1:68.10.0+build1-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "xul-ext-calendar-timezones",
            "binary_version": "1:68.10.0+build1-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "xul-ext-gdata-provider",
            "binary_version": "1:68.10.0+build1-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "xul-ext-lightning",
            "binary_version": "1:68.10.0+build1-0ubuntu0.18.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "thunderbird",
        "purl": "pkg:deb/ubuntu/thunderbird@1:68.10.0+build1-0ubuntu0.18.04.1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:68.10.0+build1-0ubuntu0.18.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:52.4.0+build1-0ubuntu2",
        "1:52.6.0+build1-0ubuntu1",
        "1:52.7.0+build1-0ubuntu1",
        "1:52.8.0+build1-0ubuntu0.18.04.1",
        "1:52.9.1+build3-0ubuntu0.18.04.1",
        "1:60.2.1+build1-0ubuntu0.18.04.2",
        "1:60.4.0+build2-0ubuntu0.18.04.1",
        "1:60.5.1+build2-0ubuntu0.18.04.1",
        "1:60.6.1+build2-0ubuntu0.18.04.1",
        "1:60.7.0+build1-0ubuntu0.18.04.1",
        "1:60.7.1+build1-0ubuntu0.18.04.1",
        "1:60.7.2+build2-0ubuntu0.18.04.1",
        "1:60.8.0+build1-0ubuntu0.18.04.1",
        "1:60.9.0+build1-0ubuntu0.18.04.1",
        "1:68.2.1+build1-0ubuntu0.18.04.1",
        "1:68.2.2+build1-0ubuntu0.18.04.1",
        "1:68.4.1+build1-0ubuntu0.18.04.1",
        "1:68.7.0+build1-0ubuntu0.18.04.1",
        "1:68.8.0+build2-0ubuntu0.18.04.2"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2020-12398",
              "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"
                }
              ]
            },
            {
              "id": "CVE-2020-12399",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12405",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12406",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12410",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12417",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12418",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12419",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12420",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12421",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "thunderbird",
            "binary_version": "1:68.10.0+build1-0ubuntu0.20.04.1"
          },
          {
            "binary_name": "thunderbird-gnome-support",
            "binary_version": "1:68.10.0+build1-0ubuntu0.20.04.1"
          },
          {
            "binary_name": "thunderbird-mozsymbols",
            "binary_version": "1:68.10.0+build1-0ubuntu0.20.04.1"
          },
          {
            "binary_name": "xul-ext-calendar-timezones",
            "binary_version": "1:68.10.0+build1-0ubuntu0.20.04.1"
          },
          {
            "binary_name": "xul-ext-gdata-provider",
            "binary_version": "1:68.10.0+build1-0ubuntu0.20.04.1"
          },
          {
            "binary_name": "xul-ext-lightning",
            "binary_version": "1:68.10.0+build1-0ubuntu0.20.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "thunderbird",
        "purl": "pkg:deb/ubuntu/thunderbird@1:68.10.0+build1-0ubuntu0.20.04.1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:68.10.0+build1-0ubuntu0.20.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:68.1.2+build1-0ubuntu1",
        "1:68.1.2+build1-0ubuntu2",
        "1:68.2.1+build1-0ubuntu1",
        "1:68.2.2+build1-0ubuntu1",
        "1:68.3.0+build2-0ubuntu1",
        "1:68.3.1+build1-0ubuntu2",
        "1:68.4.1+build1-0ubuntu1",
        "1:68.4.2+build2-0ubuntu1",
        "1:68.5.0+build1-0ubuntu1",
        "1:68.6.0+build2-0ubuntu1",
        "1:68.7.0+build1-0ubuntu1",
        "1:68.7.0+build1-0ubuntu2",
        "1:68.8.0+build2-0ubuntu0.20.04.2"
      ]
    }
  ],
  "aliases": [],
  "details": "Multiple security issues were discovered in Thunderbird. If a user were\ntricked in to opening a specially crafted website in a browsing context,\nan attacker could potentially exploit these to cause a denial of service,\nobtain sensitive information, or execute arbtirary code. (CVE-2020-12405,\nCVE-2020-12406, CVE-2020-12410, CVE-2020-12417, CVE-2020-12418,\nCVE-2020-12419, CVE-2020-12420)\n\nIt was discovered that Thunderbird would continue an unencrypted\nconnection when configured to use STARTTLS for IMAP if the server\nresponded with PREAUTH. A remote attacker could potentially exploit\nthis to perform a person-in-the-middle attack in order to obtain\nsensitive information. (CVE-2020-12398)\n\nIt was discovered that NSS showed timing differences when performing DSA\nsignatures. An attacker could potentially exploit this to obtain private\nkeys using a timing attack. (CVE-2020-12399)\n\nIt was discovered that when performing add-on updates, certificate chains\nnot terminating with built-in roots were silently rejected. This could\nresult in add-ons becoming outdated. (CVE-2020-12421)\n",
  "id": "USN-4421-1",
  "modified": "2026-04-22T07:36:39Z",
  "published": "2020-07-08T17:07:07Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4421-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12398"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12399"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12405"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12406"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12410"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12417"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12418"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12419"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12420"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12421"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "thunderbird vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2020-12398",
    "UBUNTU-CVE-2020-12399",
    "UBUNTU-CVE-2020-12405",
    "UBUNTU-CVE-2020-12406",
    "UBUNTU-CVE-2020-12410",
    "UBUNTU-CVE-2020-12417",
    "UBUNTU-CVE-2020-12418",
    "UBUNTU-CVE-2020-12419",
    "UBUNTU-CVE-2020-12420",
    "UBUNTU-CVE-2020-12421"
  ]
}

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.

Action not permitted

ubuntu-cve-2020-12399

Vulnerability from osv_ubuntu

CVE-2020-12399 (GCVE-0-2020-12399)

usn-4383-1

Vulnerability from osv_ubuntu

usn-4397-1

Vulnerability from osv_ubuntu

usn-4397-2

Vulnerability from osv_ubuntu

usn-4421-1

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature