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NVD Vulnerability Details :
CVE-2021-23978
Analyzed
More InfoOfficial Page
Source-security@mozilla.org
View Known Exploited Vulnerability (KEV) details
Published At-26 Feb, 2021 | 16:15
Updated At-27 May, 2022 | 18:30

Mozilla developers reported memory safety bugs present in Firefox 85 and Firefox ESR 78.7. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Primary3.18.8HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Primary2.06.8MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P
Type: Primary
Version: 3.1
Base score: 8.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Type: Primary
Version: 2.0
Base score: 6.8
Base severity: MEDIUM
Vector:
AV:N/AC:M/Au:N/C:P/I:P/A:P
CPE Matches
Mozilla Corporation
mozilla
>>firefox>>Versions before 86.0(exclusive)
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
Mozilla Corporation
mozilla
>>firefox_esr>>Versions before 78.8(exclusive)
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
Mozilla Corporation
mozilla
>>thunderbird>>Versions before 78.8(exclusive)
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
Debian GNU/Linux
debian
>>debian_linux>>9.0
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Debian GNU/Linux
debian
>>debian_linux>>10.0
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-787Primarynvd@nist.gov
CWE ID: CWE-787
Type: Primary
Source: nvd@nist.gov
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://bugzilla.mozilla.org/buglist.cgi?bug_id=786797%2C1682928%2C1687391%2C1687597security@mozilla.org
Broken Link
Issue Tracking
Vendor Advisory
https://lists.debian.org/debian-lts-announce/2021/03/msg00000.htmlsecurity@mozilla.org
Mailing List
Third Party Advisory
https://security.gentoo.org/glsa/202104-09security@mozilla.org
Third Party Advisory
https://security.gentoo.org/glsa/202104-10security@mozilla.org
Third Party Advisory
https://www.debian.org/security/2021/dsa-4866security@mozilla.org
Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2021-07/security@mozilla.org
Release Notes
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-08/security@mozilla.org
Release Notes
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-09/security@mozilla.org
Release Notes
Vendor Advisory
Hyperlink: https://bugzilla.mozilla.org/buglist.cgi?bug_id=786797%2C1682928%2C1687391%2C1687597
Source: security@mozilla.org
Resource:
Broken Link
Issue Tracking
Vendor Advisory
Hyperlink: https://lists.debian.org/debian-lts-announce/2021/03/msg00000.html
Source: security@mozilla.org
Resource:
Mailing List
Third Party Advisory
Hyperlink: https://security.gentoo.org/glsa/202104-09
Source: security@mozilla.org
Resource:
Third Party Advisory
Hyperlink: https://security.gentoo.org/glsa/202104-10
Source: security@mozilla.org
Resource:
Third Party Advisory
Hyperlink: https://www.debian.org/security/2021/dsa-4866
Source: security@mozilla.org
Resource:
Third Party Advisory
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2021-07/
Source: security@mozilla.org
Resource:
Release Notes
Vendor Advisory
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2021-08/
Source: security@mozilla.org
Resource:
Release Notes
Vendor Advisory
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2021-09/
Source: security@mozilla.org
Resource:
Release Notes
Vendor Advisory
Change History
0Changes found
Details not found