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Vulnerability details: VCID-x82t-na3c-aaaa
Vulnerability ID VCID-x82t-na3c-aaaa
Aliases CVE-2020-12397
Summary By encoding Unicode whitespace characters within the From email header, an attacker can spoof the sender email address that Thunderbird displays. This vulnerability affects Thunderbird < 68.8.0.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-346 Origin Validation Error
CWE-172 Encoding Error
System Score Found at
generic_textual Low http://people.canonical.com/~ubuntu-security/cve/2020/CVE-2020-12397.html
rhas Critical https://access.redhat.com/errata/RHSA-2020:2046
rhas Critical https://access.redhat.com/errata/RHSA-2020:2047
rhas Critical https://access.redhat.com/errata/RHSA-2020:2048
rhas Critical https://access.redhat.com/errata/RHSA-2020:2049
rhas Critical https://access.redhat.com/errata/RHSA-2020:2050
cvssv3 4.3 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-12397.json
epss 0.00103 https://api.first.org/data/v1/epss?cve=CVE-2020-12397
epss 0.00103 https://api.first.org/data/v1/epss?cve=CVE-2020-12397
epss 0.00103 https://api.first.org/data/v1/epss?cve=CVE-2020-12397
epss 0.00103 https://api.first.org/data/v1/epss?cve=CVE-2020-12397
epss 0.00103 https://api.first.org/data/v1/epss?cve=CVE-2020-12397
epss 0.00103 https://api.first.org/data/v1/epss?cve=CVE-2020-12397
epss 0.00103 https://api.first.org/data/v1/epss?cve=CVE-2020-12397
epss 0.00103 https://api.first.org/data/v1/epss?cve=CVE-2020-12397
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epss 0.00103 https://api.first.org/data/v1/epss?cve=CVE-2020-12397
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epss 0.00184 https://api.first.org/data/v1/epss?cve=CVE-2020-12397
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epss 0.00184 https://api.first.org/data/v1/epss?cve=CVE-2020-12397
epss 0.00184 https://api.first.org/data/v1/epss?cve=CVE-2020-12397
epss 0.00184 https://api.first.org/data/v1/epss?cve=CVE-2020-12397
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epss 0.00184 https://api.first.org/data/v1/epss?cve=CVE-2020-12397
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epss 0.00184 https://api.first.org/data/v1/epss?cve=CVE-2020-12397
epss 0.00184 https://api.first.org/data/v1/epss?cve=CVE-2020-12397
epss 0.00184 https://api.first.org/data/v1/epss?cve=CVE-2020-12397
epss 0.00184 https://api.first.org/data/v1/epss?cve=CVE-2020-12397
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epss 0.00184 https://api.first.org/data/v1/epss?cve=CVE-2020-12397
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epss 0.00184 https://api.first.org/data/v1/epss?cve=CVE-2020-12397
epss 0.00184 https://api.first.org/data/v1/epss?cve=CVE-2020-12397
epss 0.00184 https://api.first.org/data/v1/epss?cve=CVE-2020-12397
epss 0.00184 https://api.first.org/data/v1/epss?cve=CVE-2020-12397
epss 0.00465 https://api.first.org/data/v1/epss?cve=CVE-2020-12397
rhbs low https://bugzilla.redhat.com/show_bug.cgi?id=1832565
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12387
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12392
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12395
generic_textual Low https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12397
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6831
cvssv2 4.3 https://nvd.nist.gov/vuln/detail/CVE-2020-12397
cvssv3 4.3 https://nvd.nist.gov/vuln/detail/CVE-2020-12397
cvssv3.1 4.3 https://nvd.nist.gov/vuln/detail/CVE-2020-12397
archlinux Critical https://security.archlinux.org/AVG-1155
generic_textual Medium https://ubuntu.com/security/notices/USN-4373-1
generic_textual Medium https://usn.ubuntu.com/usn/usn-4373-1
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2020-18
generic_textual Low https://www.mozilla.org/en-US/security/advisories/mfsa2020-18/#CVE-2020-12397
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2020/CVE-2020-12397.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-12397.json
https://api.first.org/data/v1/epss?cve=CVE-2020-12397
https://bugzilla.mozilla.org/show_bug.cgi?id=1617370
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12387
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12392
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12395
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12397
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6831
https://security.gentoo.org/glsa/202005-03
https://ubuntu.com/security/notices/USN-4373-1
https://usn.ubuntu.com/4373-1/
https://usn.ubuntu.com/usn/usn-4373-1
https://www.mozilla.org/en-US/security/advisories/mfsa2020-18/#CVE-2020-12397
https://www.mozilla.org/security/advisories/mfsa2020-18/
1832565 https://bugzilla.redhat.com/show_bug.cgi?id=1832565
ASA-202005-7 https://security.archlinux.org/ASA-202005-7
AVG-1155 https://security.archlinux.org/AVG-1155
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
CVE-2020-12397 https://nvd.nist.gov/vuln/detail/CVE-2020-12397
mfsa2020-18 https://www.mozilla.org/en-US/security/advisories/mfsa2020-18
RHSA-2020:2046 https://access.redhat.com/errata/RHSA-2020:2046
RHSA-2020:2047 https://access.redhat.com/errata/RHSA-2020:2047
RHSA-2020:2048 https://access.redhat.com/errata/RHSA-2020:2048
RHSA-2020:2049 https://access.redhat.com/errata/RHSA-2020:2049
RHSA-2020:2050 https://access.redhat.com/errata/RHSA-2020:2050
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-12397.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-12397
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-12397
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-12397
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.43028
EPSS Score 0.00103
Published At Nov. 1, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.