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vuln-ubuntu/data/osv/usn/USN-4995-1.json
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{
"schema_version": "1.7.0",
"id": "USN-4995-1",
"summary": "thunderbird vulnerabilities",
"details": "Multiple security issues were discovered in Thunderbird. If a user were\ntricked into opening a specially crafted website in a browsing context, an\nattacker could potentially exploit these to cause a denial of service,\nobtain sensitive information, spoof the UI, bypass security restrictions,\nor execute arbitrary code. (CVE-2021-23961, CVE-2021-23981,\nCVE-2021-23982, CVE-2021-23987, CVE-2021-23994, CVE-2021-23998,\nCVE-2021-23999, CVE-2021-29945, CVE-2021-29946, CVE-2021-29967)\n\nIt was discovered that extensions could open popup windows with control\nof the window title in some circumstances. If a user were tricked into\ninstalling a specially crafted extension, an attacker could potentially\nexploit this to spoof a website and trick the user into providing\ncredentials. (CVE-2021-23984)\n\nMultiple security issues were discovered in Thunderbird's OpenPGP\nintegration. If a user were tricked into importing a specially crafted\nkey in some circumstances, an attacker could potentially exploit this\nto cause a denial of service (inability to send encrypted email) or\nconfuse the user. (CVE-2021-23991, CVE-2021-23992, CVE-2021-23993)\n\nA use-after-free was discovered when Responsive Design Mode was\nenabled. If a user were tricked into opening a specially crafted\nwebsite with Responsive Design Mode enabled, an attacker could\npotentially exploit this to cause a denial of service, or execute\narbitrary code. (CVE-2021-23995)\n\nIt was discovered that Thunderbird mishandled ftp URLs with encoded\nnewline characters. If a user were tricked into clicking on a specially\ncrafted link, an attacker could potentially exploit this to send arbitrary\nFTP commands. (CVE-2021-24002)\n\nIt was discovered that Thunderbird wrote signatures to disk and read them\nback during verification. A local attacker could potentially exploit this\nto replace the data with another signature file. (CVE-2021-29948)\n\nIt was discovered that Thunderbird might load an alternative OTR\nlibrary. If a user were tricked into copying a specially crafted\nlibrary to one of Thunderbird's search paths, an attacker could\npotentially exploit this to execute arbitrary code. (CVE-2021-29949)\n\nIt was discovered that secret keys imported into Thunderbird were\nstored unencrypted. A local attacker could potentially exploit this to\nobtain private keys. (CVE-2021-29956)\n\nIt was discovered that Thunderbird did not indicate when an inline signed\nor encrypted message contained additional unprotected parts.\n(CVE-2021-29957)\n",
"aliases": [],
"upstream": [
"UBUNTU-CVE-2021-23961",
"UBUNTU-CVE-2021-23981",
"UBUNTU-CVE-2021-23982",
"UBUNTU-CVE-2021-23984",
"UBUNTU-CVE-2021-23987",
"UBUNTU-CVE-2021-23991",
"UBUNTU-CVE-2021-23992",
"UBUNTU-CVE-2021-23993",
"UBUNTU-CVE-2021-23994",
"UBUNTU-CVE-2021-23995",
"UBUNTU-CVE-2021-23998",
"UBUNTU-CVE-2021-23999",
"UBUNTU-CVE-2021-24002",
"UBUNTU-CVE-2021-29945",
"UBUNTU-CVE-2021-29946",
"UBUNTU-CVE-2021-29948",
"UBUNTU-CVE-2021-29949",
"UBUNTU-CVE-2021-29956",
"UBUNTU-CVE-2021-29957",
"UBUNTU-CVE-2021-29967"
],
"related": [],
"published": "2021-06-22T16:43:02Z",
"modified": "2026-04-22T07:36:59Z",
"affected": [
{
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "thunderbird",
"purl": "pkg:deb/ubuntu/thunderbird@1:78.11.0+build1-0ubuntu0.20.04.2?arch=source&distro=focal"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:78.11.0+build1-0ubuntu0.20.04.2"
}
]
}
],
"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",
"1:68.10.0+build1-0ubuntu0.20.04.1",
"1:78.7.1+build1-0ubuntu0.20.04.1",
"1:78.8.1+build1-0ubuntu0.20.04.1"
],
"ecosystem_specific": {
"binaries": [
{
"binary_name": "thunderbird",
"binary_version": "1:78.11.0+build1-0ubuntu0.20.04.2"
},
{
"binary_name": "thunderbird-gnome-support",
"binary_version": "1:78.11.0+build1-0ubuntu0.20.04.2"
},
{
"binary_name": "thunderbird-mozsymbols",
"binary_version": "1:78.11.0+build1-0ubuntu0.20.04.2"
},
{
"binary_name": "xul-ext-calendar-timezones",
"binary_version": "1:78.11.0+build1-0ubuntu0.20.04.2"
},
{
"binary_name": "xul-ext-gdata-provider",
"binary_version": "1:78.11.0+build1-0ubuntu0.20.04.2"
},
{
"binary_name": "xul-ext-lightning",
"binary_version": "1:78.11.0+build1-0ubuntu0.20.04.2"
}
],
"availability": "No subscription required"
},
"database_specific": {
"cves_map": {
"ecosystem": "Ubuntu:20.04:LTS",
"cves": [
{
"id": "CVE-2021-23961",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-23981",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-23982",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-23984",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-23987",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-23991",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-23992",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-23993",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-23994",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-23995",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-23998",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-23999",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-24002",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-29945",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-29946",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-29948",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2021-29949",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2021-29956",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-29957",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-29967",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
]
}
}
}
],
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-4995-1"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-23961"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-23981"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-23982"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-23984"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-23987"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-23991"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-23992"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-23993"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-23994"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-23995"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-23998"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-23999"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-24002"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-29945"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-29946"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-29948"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-29949"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-29956"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-29957"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-29967"
}
]
}
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