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Vulnerability details: VCID-v16f-9dbc-aaaj
Vulnerability ID VCID-v16f-9dbc-aaaj
Aliases CVE-2020-26972
Summary The lifecycle of IPC Actors allows managed actors to outlive their manager actors; and the former must ensure that they are not attempting to use a dead actor they have a reference to. Such a check was omitted in WebGL, resulting in a use-after-free and a potentially exploitable crash. This vulnerability affects Firefox < 84.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-416 Use After Free
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2020/CVE-2020-26972.html
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epss 0.00521 https://api.first.org/data/v1/epss?cve=CVE-2020-26972
epss 0.01085 https://api.first.org/data/v1/epss?cve=CVE-2020-26972
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26972
cvssv2 7.5 https://nvd.nist.gov/vuln/detail/CVE-2020-26972
cvssv3 9.8 https://nvd.nist.gov/vuln/detail/CVE-2020-26972
cvssv3.1 9.8 https://nvd.nist.gov/vuln/detail/CVE-2020-26972
archlinux High https://security.archlinux.org/AVG-1362
generic_textual Medium https://ubuntu.com/security/notices/USN-4671-1
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2020-54
generic_textual Medium https://www.mozilla.org/en-US/security/advisories/mfsa2020-54/#CVE-2020-26972
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2020/CVE-2020-26972.html
https://api.first.org/data/v1/epss?cve=CVE-2020-26972
https://bugzilla.mozilla.org/show_bug.cgi?id=1671382
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26972
https://ubuntu.com/security/notices/USN-4671-1
https://www.mozilla.org/en-US/security/advisories/mfsa2020-54/#CVE-2020-26972
https://www.mozilla.org/security/advisories/mfsa2020-54/
ASA-202012-25 https://security.archlinux.org/ASA-202012-25
AVG-1362 https://security.archlinux.org/AVG-1362
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-2020-26972 https://nvd.nist.gov/vuln/detail/CVE-2020-26972
mfsa2020-54 https://www.mozilla.org/en-US/security/advisories/mfsa2020-54
USN-4671-1 https://usn.ubuntu.com/4671-1/
No exploits are available.
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2020-26972
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:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2020-26972
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:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2020-26972
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 0.64918
EPSS Score 0.00244
Published At Nov. 1, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.