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Vulnerability details: VCID-tcb9-7k5a-aaan
Vulnerability ID VCID-tcb9-7k5a-aaan
Aliases CVE-2021-23970
Summary Context-specific code was included in a shared jump table; resulting in assertions being triggered in multithreaded wasm code. This vulnerability affects Firefox < 86.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-617 Reachable Assertion
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2021/CVE-2021-23970.html
epss 0.00151 https://api.first.org/data/v1/epss?cve=CVE-2021-23970
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epss 0.00180 https://api.first.org/data/v1/epss?cve=CVE-2021-23970
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epss 0.00773 https://api.first.org/data/v1/epss?cve=CVE-2021-23970
generic_textual Medium https://bugzilla.mozilla.org/show_bug.cgi?id=1681724
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23970
cvssv3.1 6.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 4.3 https://nvd.nist.gov/vuln/detail/CVE-2021-23970
cvssv3 6.5 https://nvd.nist.gov/vuln/detail/CVE-2021-23970
cvssv3.1 6.5 https://nvd.nist.gov/vuln/detail/CVE-2021-23970
archlinux High https://security.archlinux.org/AVG-1599
generic_textual Medium https://ubuntu.com/security/notices/USN-4756-1
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2021-07
generic_textual Medium https://www.mozilla.org/en-US/security/advisories/mfsa2021-07/#CVE-2021-23970
generic_textual Medium https://www.mozilla.org/security/advisories/mfsa2021-07/
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2021/CVE-2021-23970.html
https://api.first.org/data/v1/epss?cve=CVE-2021-23970
https://bugzilla.mozilla.org/show_bug.cgi?id=1681724
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23970
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://security.gentoo.org/glsa/202104-10
https://ubuntu.com/security/notices/USN-4756-1
https://www.mozilla.org/en-US/security/advisories/mfsa2021-07/#CVE-2021-23970
https://www.mozilla.org/security/advisories/mfsa2021-07/
AVG-1599 https://security.archlinux.org/AVG-1599
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
CVE-2021-23970 https://nvd.nist.gov/vuln/detail/CVE-2021-23970
mfsa2021-07 https://www.mozilla.org/en-US/security/advisories/mfsa2021-07
USN-4756-1 https://usn.ubuntu.com/4756-1/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
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:N/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2021-23970
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:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2021-23970
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:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2021-23970
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 0.52087
EPSS Score 0.00151
Published At Nov. 1, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.