Vulnerability Name:

CVE-2021-38506 (CCN-212636)

Assigned:2021-11-02
Published:2021-11-02
Updated:2022-12-09
Summary:Through a series of navigations, Firefox could have entered fullscreen mode without notification or warning to the user. This could lead to spoofing attacks on the browser UI including phishing. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.
CVSS v3 Severity:4.3 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N)
3.8 Low (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): None
6.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N)
5.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): High
Availibility (A): None
7.5 High (REDHAT CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H)
6.5 Medium (REDHAT Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
6.8 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:C/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): Complete
Availibility (A): None
Vulnerability Type:CWE-1021
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2021-38506

Source: security@mozilla.org
Type: Issue Tracking, Permissions Required, Vendor Advisory
security@mozilla.org

Source: XF
Type: UNKNOWN
firefox-cve202138506-spoofing(212636)

Source: security@mozilla.org
Type: Mailing List, Third Party Advisory
security@mozilla.org

Source: security@mozilla.org
Type: Mailing List, Third Party Advisory
security@mozilla.org

Source: security@mozilla.org
Type: Third Party Advisory
security@mozilla.org

Source: security@mozilla.org
Type: Third Party Advisory
security@mozilla.org

Source: security@mozilla.org
Type: Third Party Advisory
security@mozilla.org

Source: security@mozilla.org
Type: Third Party Advisory
security@mozilla.org

Source: CCN
Type: IBM Security Bulletin 6578563 (Application Performance Management)
Multiple vulnerabilities of Mozilla Firefox (less than Firefox 91.8.0ESR) have affected Synthetic Playback Agent 8.1.4.0-8.1.4 IF16 - 2022.4.0

Source: CCN
Type: IBM Security Bulletin 6891067 (Cloud Pak for Multicloud Management Monitoring)
Multiple vulnerabilities in Mozilla Firefox affect IBM Cloud Pak for Multicloud Management Monitoring.

Source: CCN
Type: Mozilla Foundation Security Advisory 2021-48
Security Vulnerabilities fixed in Firefox 94

Source: CCN
Type: Mozilla Foundation Security Advisory 2021-49
Security Vulnerabilities fixed in Firefox ESR 91.3

Source: security@mozilla.org
Type: Vendor Advisory
security@mozilla.org

Source: security@mozilla.org
Type: Vendor Advisory
security@mozilla.org

Source: security@mozilla.org
Type: Vendor Advisory
security@mozilla.org

Vulnerable Configuration:Configuration RedHat 1:
  • cpe:/o:redhat:enterprise_linux:7:*:*:*:*:*:*:*
    • Configuration RedHat 2:
  • cpe:/o:redhat:enterprise_linux:7::client:*:*:*:*:*
    • Configuration RedHat 3:
  • cpe:/o:redhat:enterprise_linux:7::server:*:*:*:*:*
    • Configuration RedHat 4:
  • cpe:/o:redhat:enterprise_linux:7::workstation:*:*:*:*:*
    • Configuration RedHat 5:
  • cpe:/a:redhat:enterprise_linux:8:*:*:*:*:*:*:*
    • Configuration RedHat 6:
  • cpe:/a:redhat:enterprise_linux:8::appstream:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:mozilla:firefox_esr:91.2:*:*:*:*:*:*:*
  • AND
  • cpe:/a:ibm:application_performance_management:8.1.4:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:7868
    P
    		MozillaFirefox-102.11.0-150200.152.87.1 on GA media (Moderate)
    2023-06-12
    oval:org.opensuse.security:def:51981
    P
    		Security update for mozilla-nss (Important)
    2023-01-20
    oval:org.opensuse.security:def:3546
    P
    		libICE6-1.0.8-12.1 on GA media (Moderate)
    2022-06-28
    oval:org.opensuse.security:def:3252
    P
    		libsmi-0.4.8-18.55 on GA media (Moderate)
    2022-06-28
    oval:org.opensuse.security:def:94882
    P
    		MozillaFirefox-91.8.0-150200.152.26.1 on GA media (Moderate)
    2022-06-22
    oval:org.opensuse.security:def:94813
    P
    		python3-sqlparse-0.4.2-3.3.1 on GA media (Moderate)
    2022-06-22
    oval:org.opensuse.security:def:95176
    P
    		MozillaThunderbird-91.8.0-150200.8.65.1 on GA media (Moderate)
    2022-06-22
    oval:org.opensuse.security:def:102148
    P
    		Security update for python-lxml (Important)
    2022-03-10
    oval:org.opensuse.security:def:99760
    P
    		 (Important)
    2022-03-10
    oval:org.opensuse.security:def:100071
    P
    		 (Important)
    2022-01-28
    oval:org.opensuse.security:def:111901
    P
    		MozillaFirefox-94.0.1-1.1 on GA media (Moderate)
    2022-01-17
    oval:org.opensuse.security:def:111907
    P
    		MozillaThunderbird-91.3.0-1.1 on GA media (Moderate)
    2022-01-17
    oval:org.opensuse.security:def:111187
    P
    		Security update for MozillaThunderbird (Important)
    2021-12-29
    oval:org.opensuse.security:def:10670
    P
    		Security update for MozillaThunderbird (Important)
    2021-12-22
    oval:org.opensuse.security:def:70847
    P
    		Security update for MozillaThunderbird (Important)
    2021-12-22
    oval:org.opensuse.security:def:102344
    P
    		Security update for MozillaThunderbird (Important)
    2021-12-22
    oval:org.opensuse.security:def:67365
    P
    		Security update for MozillaThunderbird (Important)
    2021-12-22
    oval:org.opensuse.security:def:96332
    P
    		Security update for MozillaThunderbird (Important)
    2021-12-22
    oval:org.opensuse.security:def:10707
    P
    		Security update for MozillaThunderbird (Important)
    2021-12-22
    oval:org.opensuse.security:def:103004
    P
    		Security update for MozillaThunderbird (Important)
    2021-12-22
    oval:org.opensuse.security:def:6276
    P
    		Security update for MozillaThunderbird (Important)
    2021-12-22
    oval:org.opensuse.security:def:119810
    P
    		Security update for MozillaThunderbird (Important)
    2021-12-22
    oval:org.opensuse.security:def:1792
    P
    		Security update for MozillaThunderbird (Important)
    2021-12-22
    oval:org.opensuse.security:def:76433
    P
    		Security update for MozillaThunderbird (Important)
    2021-12-22
    oval:org.opensuse.security:def:70810
    P
    		Security update for MozillaThunderbird (Important)
    2021-12-22
    oval:org.opensuse.security:def:111845
    P
    		Security update for MozillaThunderbird (Important)
    2021-12-22
    oval:org.opensuse.security:def:109670
    P
    		Security update for MozillaThunderbird (Important)
    2021-12-22
    oval:org.opensuse.security:def:99167
    P
    		 (Moderate)
    2021-12-06
    oval:org.opensuse.security:def:6233
    P
    		Security update for MozillaFirefox (Important)
    2021-11-19
    oval:org.opensuse.security:def:65321
    P
    		Security update for MozillaFirefox (Important)
    2021-11-19
    oval:org.opensuse.security:def:117706
    P
    		Security update for MozillaFirefox (Important)
    2021-11-19
    oval:org.opensuse.security:def:108192
    P
    		Security update for MozillaFirefox (Important)
    2021-11-19
    oval:org.opensuse.security:def:1045
    P
    		Security update for MozillaFirefox (Important)
    2021-11-19
    oval:org.opensuse.security:def:4168
    P
    		Security update for MozillaFirefox (Important)
    2021-11-19
    oval:org.opensuse.security:def:76390
    P
    		Security update for MozillaFirefox (Important)
    2021-11-19
    oval:org.opensuse.security:def:111790
    P
    		Security update for MozillaFirefox (Important)
    2021-11-19
    oval:org.opensuse.security:def:74325
    P
    		Security update for MozillaFirefox (Important)
    2021-11-19
    oval:org.opensuse.security:def:4232
    P
    		Security update for MozillaFirefox (Important)
    2021-11-19
    oval:org.opensuse.security:def:101736
    P
    		Security update for MozillaFirefox (Important)
    2021-11-19
    oval:org.opensuse.security:def:67322
    P
    		Security update for MozillaFirefox (Important)
    2021-11-19
    oval:org.opensuse.security:def:74389
    P
    		Security update for MozillaFirefox (Important)
    2021-11-19
    oval:org.opensuse.security:def:101526
    P
    		Security update for MozillaFirefox (Important)
    2021-11-19
    oval:org.opensuse.security:def:65257
    P
    		Security update for MozillaFirefox (Important)
    2021-11-19
    oval:org.opensuse.security:def:23993
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:5151
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:34590
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:59562
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:88216
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:30267
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:55268
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:83474
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:126793
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:33042
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:57526
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:86167
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:26164
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:59820
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:88533
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:31300
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:55970
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:84234
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:127190
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:33739
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:58039
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:86680
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:29445
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:51690
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:82652
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:60413
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:89217
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:31703
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:56090
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:84692
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:23702
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:33997
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:58865
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:87506
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:30147
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:83354
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:125626
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:89475
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:32216
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:57123
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:85764
    P
    		Security update for MozillaFirefox (Important)
    2021-11-17
    oval:org.opensuse.security:def:95435
    P
    		Security update for MozillaFirefox (Important)
    2021-11-10
    oval:org.opensuse.security:def:106737
    P
    		Security update for MozillaFirefox (Important)
    2021-11-10
    oval:org.opensuse.security:def:8861
    P
    		Security update for MozillaFirefox (Important)
    2021-11-10
    oval:org.opensuse.security:def:99561
    P
    		Security update for MozillaFirefox (Important)
    2021-11-10
    oval:org.opensuse.security:def:76044
    P
    		Security update for MozillaFirefox (Important)
    2021-11-10
    oval:org.opensuse.security:def:92611
    P
    		Security update for MozillaFirefox (Important)
    2021-11-10
    oval:org.opensuse.security:def:106052
    P
    		Security update for MozillaFirefox (Important)
    2021-11-10
    oval:org.opensuse.security:def:9811
    P
    		Security update for MozillaFirefox (Important)
    2021-11-10
    oval:org.opensuse.security:def:70311
    P
    		Security update for MozillaFirefox (Important)
    2021-11-10
    oval:org.opensuse.security:def:98972
    P
    		Security update for MozillaFirefox (Important)
    2021-11-10
    oval:org.opensuse.security:def:92022
    P
    		Security update for MozillaFirefox (Important)
    2021-11-10
    oval:org.opensuse.security:def:9056
    P
    		Security update for MozillaFirefox (Important)
    2021-11-10
    oval:org.opensuse.security:def:69557
    P
    		Security update for MozillaFirefox (Important)
    2021-11-10
    oval:org.opensuse.security:def:92810
    P
    		Security update for MozillaFirefox (Important)
    2021-11-10
    oval:org.opensuse.security:def:106251
    P
    		Security update for MozillaFirefox (Important)
    2021-11-10
    oval:org.opensuse.security:def:10171
    P
    		Security update for MozillaFirefox (Important)
    2021-11-10
    oval:org.opensuse.security:def:70502
    P
    		Security update for MozillaFirefox (Important)
    2021-11-10
    oval:org.opensuse.security:def:66976
    P
    		Security update for MozillaFirefox (Important)
    2021-11-10
    oval:org.opensuse.security:def:108814
    P
    		Security update for MozillaFirefox (Important)
    2021-11-10
    oval:org.opensuse.security:def:92217
    P
    		Security update for MozillaFirefox (Important)
    2021-11-10
    oval:org.opensuse.security:def:105662
    P
    		Security update for MozillaFirefox (Important)
    2021-11-10
    oval:org.opensuse.security:def:9417
    P
    		Security update for MozillaFirefox (Important)
    2021-11-10
    oval:org.opensuse.security:def:69752
    P
    		Security update for MozillaFirefox (Important)
    2021-11-10
    oval:org.opensuse.security:def:106450
    P
    		Security update for MozillaFirefox (Important)
    2021-11-10
    oval:org.opensuse.security:def:10362
    P
    		Security update for MozillaFirefox (Important)
    2021-11-10
    oval:org.opensuse.security:def:8670
    P
    		Security update for MozillaFirefox (Important)
    2021-11-10
    oval:org.opensuse.security:def:99362
    P
    		Security update for MozillaFirefox (Important)
    2021-11-10
    oval:org.opensuse.security:def:92412
    P
    		Security update for MozillaFirefox (Important)
    2021-11-10
    oval:org.opensuse.security:def:105857
    P
    		Security update for MozillaFirefox (Important)
    2021-11-10
    oval:org.opensuse.security:def:9612
    P
    		Security update for MozillaFirefox (Important)
    2021-11-10
    oval:org.opensuse.security:def:69951
    P
    		Security update for MozillaFirefox (Important)
    2021-11-10
    oval:org.opensuse.security:def:5887
    P
    		Security update for MozillaFirefox (Important)
    2021-11-10
    oval:org.opensuse.security:def:43093
    P
    		Security update for MozillaFirefox (Important)
    2021-11-09
    oval:org.opensuse.security:def:38663
    P
    		Security update for MozillaFirefox (Important)
    2021-11-09
    oval:org.opensuse.security:def:44383
    P
    		Security update for MozillaFirefox (Important)
    2021-11-09
    oval:org.opensuse.security:def:39953
    P
    		Security update for MozillaFirefox (Important)
    2021-11-09
    oval:com.redhat.rhsa:def:20214130
    P
    		RHSA-2021:4130: thunderbird security update (Important)
    2021-11-04
    oval:com.redhat.rhsa:def:20214134
    P
    		RHSA-2021:4134: thunderbird security update (Important)
    2021-11-04
    oval:com.redhat.rhsa:def:20214116
    P
    		RHSA-2021:4116: firefox security update (Important)
    2021-11-03
    oval:com.redhat.rhsa:def:20214123
    P
    		RHSA-2021:4123: firefox security update (Important)
    2021-11-03
    BACK
    mozilla firefox esr 91.2
    ibm application performance management 8.1.4