Vulnerability Name:

CVE-2021-23995 (CCN-200187)

Assigned:2021-04-19
Published:2021-04-19
Updated:2021-07-02
Summary:When Responsive Design Mode was enabled, it used references to objects that were previously freed. We presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.
CVSS v3 Severity:8.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
7.7 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/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): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
8.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
7.7 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/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): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
8.8 High (REDHAT CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
7.7 High (REDHAT Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/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): Low
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:5.1 Medium (CVSS v2 Vector: AV:N/AC:H/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): High
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
9.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-672
CWE-416
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2021-23995

Source: MISC
Type: Issue Tracking, Permissions Required, Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1699835

Source: XF
Type: UNKNOWN
firefox-cve202123995-code-exec(200187)

Source: CCN
Type: IBM Security Bulletin 6493377 (Application Performance Management)
Multiple vulnerabilities of Mozilla Firefox (less than Firefox 78.14.0 ESR +CVE-2021-29967) have affected Synthetic Playback Agent 8.1.4.0-8.1.4 IF14

Source: CCN
Type: Mozilla Foundation Security Advisory 2021-14
Security Vulnerabilities fixed in Thunderbird 78.10

Source: CCN
Type: Mozilla Foundation Security Advisory 2021-15
Security Vulnerabilities fixed in Firefox ESR 78.10

Source: CCN
Type: Mozilla Foundation Security Advisory 2021-16
Security Vulnerabilities fixed in Firefox 88

Source: MISC
Type: Release Notes, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-14/

Source: MISC
Type: Release Notes, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-15/

Source: MISC
Type: Release Notes, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-16/

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2021-23995

Vulnerable Configuration:Configuration 1:
  • cpe:/a:mozilla:firefox:*:*:*:*:*:*:*:* (Version < 88.0)
  • OR cpe:/a:mozilla:firefox_esr:*:*:*:*:*:*:*:* (Version < 78.10)
  • OR cpe:/a:mozilla:thunderbird:*:*:*:*:*:*:*:* (Version < 78.10)

    • 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:thunderbird:78.9.0:*:*:*:*:*:*:*
  • 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:645
    P
    		Security update for php7 (Moderate) (in QA)
    2022-10-04
    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:94765
    P
    		p7zip-16.02-14.7.1 on GA media (Moderate)
    2022-06-22
    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:95217
    P
    		libwebp6-0.5.0-3.5.1 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:111899
    P
    		MozillaFirefox-92.0-1.2 on GA media (Moderate)
    2022-01-17
    oval:org.opensuse.security:def:111905
    P
    		MozillaThunderbird-91.1.1-1.1 on GA media (Moderate)
    2022-01-17
    oval:org.opensuse.security:def:99443
    P
    		 (Moderate)
    2021-12-16
    oval:org.opensuse.security:def:101930
    P
    		Security update for the Linux Kernel (Important)
    2021-11-16
    oval:org.opensuse.security:def:1639
    P
    		Security update for squid (Moderate)
    2021-10-20
    oval:org.opensuse.security:def:105476
    P
    		MozillaFirefox-92.0-1.2 on GA media (Moderate)
    2021-10-01
    oval:org.opensuse.security:def:105478
    P
    		MozillaThunderbird-91.1.1-1.1 on GA media (Moderate)
    2021-10-01
    oval:org.opensuse.security:def:101134
    P
    		MozillaFirefox-78.10.0-8.38.1 on GA media (Moderate)
    2021-08-09
    oval:org.opensuse.security:def:72447
    P
    		MozillaFirefox-78.10.0-8.38.1 on GA media (Moderate)
    2021-08-09
    oval:org.opensuse.security:def:62728
    P
    		MozillaFirefox-78.10.0-8.38.1 on GA media (Moderate)
    2021-08-09
    oval:org.opensuse.security:def:101478
    P
    		Security update for bluez (Moderate)
    2021-07-22
    oval:org.opensuse.security:def:99642
    P
    		 (Moderate)
    2021-06-04
    oval:org.opensuse.security:def:99949
    P
    		 (Important)
    2021-06-01
    oval:org.opensuse.security:def:111358
    P
    		Security update for MozillaThunderbird (Important)
    2021-05-01
    oval:org.opensuse.security:def:108596
    P
    		Security update for MozillaFirefox (Important)
    2021-04-29
    oval:org.opensuse.security:def:75826
    P
    		Security update for MozillaFirefox (Important)
    2021-04-29
    oval:org.opensuse.security:def:93197
    P
    		Security update for MozillaFirefox (Important)
    2021-04-29
    oval:org.opensuse.security:def:9494
    P
    		Security update for MozillaFirefox (Important)
    2021-04-29
    oval:org.opensuse.security:def:91904
    P
    		Security update for MozillaFirefox (Important)
    2021-04-29
    oval:org.opensuse.security:def:102973
    P
    		Security update for MozillaThunderbird (Important)
    2021-04-29
    oval:org.opensuse.security:def:66758
    P
    		Security update for MozillaFirefox (Important)
    2021-04-29
    oval:org.opensuse.security:def:99049
    P
    		Security update for MozillaFirefox (Important)
    2021-04-29
    oval:org.opensuse.security:def:10639
    P
    		Security update for MozillaThunderbird (Important)
    2021-04-29
    oval:org.opensuse.security:def:92692
    P
    		Security update for MozillaFirefox (Important)
    2021-04-29
    oval:org.opensuse.security:def:8743
    P
    		Security update for MozillaFirefox (Important)
    2021-04-29
    oval:org.opensuse.security:def:70206
    P
    		Security update for MozillaFirefox (Important)
    2021-04-29
    oval:org.opensuse.security:def:109639
    P
    		Security update for MozillaThunderbird (Important)
    2021-04-29
    oval:org.opensuse.security:def:9693
    P
    		Security update for MozillaFirefox (Important)
    2021-04-29
    oval:org.opensuse.security:def:92099
    P
    		Security update for MozillaFirefox (Important)
    2021-04-29
    oval:org.opensuse.security:def:69452
    P
    		Security update for MozillaFirefox (Important)
    2021-04-29
    oval:org.opensuse.security:def:99244
    P
    		Security update for MozillaFirefox (Important)
    2021-04-29
    oval:org.opensuse.security:def:92891
    P
    		Security update for MozillaFirefox (Important)
    2021-04-29
    oval:org.opensuse.security:def:96911
    P
    		Security update for MozillaThunderbird (Important)
    2021-04-29
    oval:org.opensuse.security:def:8938
    P
    		Security update for MozillaFirefox (Important)
    2021-04-29
    oval:org.opensuse.security:def:70384
    P
    		Security update for MozillaFirefox (Important)
    2021-04-29
    oval:org.opensuse.security:def:119779
    P
    		Security update for MozillaThunderbird (Important)
    2021-04-29
    oval:org.opensuse.security:def:10066
    P
    		Security update for MozillaFirefox (Important)
    2021-04-29
    oval:org.opensuse.security:def:92294
    P
    		Security update for MozillaFirefox (Important)
    2021-04-29
    oval:org.opensuse.security:def:5669
    P
    		Security update for MozillaFirefox (Important)
    2021-04-29
    oval:org.opensuse.security:def:69634
    P
    		Security update for MozillaFirefox (Important)
    2021-04-29
    oval:org.opensuse.security:def:93044
    P
    		Security update for MozillaFirefox (Important)
    2021-04-29
    oval:org.opensuse.security:def:96912
    P
    		Security update for MozillaFirefox (Important)
    2021-04-29
    oval:org.opensuse.security:def:9312
    P
    		Security update for MozillaFirefox (Important)
    2021-04-29
    oval:org.opensuse.security:def:70779
    P
    		Security update for MozillaThunderbird (Important)
    2021-04-29
    oval:org.opensuse.security:def:98854
    P
    		Security update for MozillaFirefox (Important)
    2021-04-29
    oval:org.opensuse.security:def:96301
    P
    		Security update for MozillaThunderbird (Important)
    2021-04-29
    oval:org.opensuse.security:def:10244
    P
    		Security update for MozillaFirefox (Important)
    2021-04-29
    oval:org.opensuse.security:def:92493
    P
    		Security update for MozillaFirefox (Important)
    2021-04-29
    oval:org.opensuse.security:def:8567
    P
    		Security update for MozillaFirefox (Important)
    2021-04-29
    oval:org.opensuse.security:def:69833
    P
    		Security update for MozillaFirefox (Important)
    2021-04-29
    oval:org.opensuse.security:def:41157
    P
    		Security update for MozillaFirefox (Important)
    2021-04-28
    oval:org.opensuse.security:def:43088
    P
    		Security update for MozillaFirefox (Important)
    2021-04-28
    oval:org.opensuse.security:def:38658
    P
    		Security update for MozillaFirefox (Important)
    2021-04-28
    oval:org.opensuse.security:def:44378
    P
    		Security update for MozillaFirefox (Important)
    2021-04-28
    oval:org.opensuse.security:def:39948
    P
    		Security update for MozillaFirefox (Important)
    2021-04-28
    oval:org.opensuse.security:def:45587
    P
    		Security update for MozillaFirefox (Important)
    2021-04-28
    oval:org.opensuse.security:def:26036
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:55888
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:84130
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:5023
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:31155
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:57897
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:86538
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:51541
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:82558
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:126692
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:33638
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:60239
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:89116
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:29351
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:56008
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:84587
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:31610
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:58727
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:87368
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:23553
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:51876
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:83272
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:127089
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:33896
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:89374
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:30065
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:56978
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:85619
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:32074
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:59461
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:88105
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:23888
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:55174
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:83392
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:34416
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:30185
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:57433
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:86074
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:125521
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:32904
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:59719
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:org.opensuse.security:def:88417
    P
    		Security update for MozillaFirefox (Important)
    2021-04-27
    oval:com.redhat.rhsa:def:20211350
    P
    		RHSA-2021:1350: thunderbird security update (Important)
    2021-04-26
    oval:com.redhat.rhsa:def:20211353
    P
    		RHSA-2021:1353: thunderbird security update (Important)
    2021-04-26
    oval:org.opensuse.security:def:111347
    P
    		Security update for MozillaFirefox (Important)
    2021-04-26
    oval:com.redhat.rhsa:def:20211360
    P
    		RHSA-2021:1360: firefox security update (Important)
    2021-04-26
    oval:com.redhat.rhsa:def:20211363
    P
    		RHSA-2021:1363: firefox security update (Important)
    2021-04-26
    oval:org.opensuse.security:def:96870
    P
    		Security update for MozillaFirefox (Important)
    2021-04-23
    oval:org.opensuse.security:def:117658
    P
    		Security update for MozillaFirefox (Important)
    2021-04-23
    oval:org.opensuse.security:def:4120
    P
    		Security update for MozillaFirefox (Important)
    2021-04-23
    oval:org.opensuse.security:def:108144
    P
    		Security update for MozillaFirefox (Important)
    2021-04-23
    oval:org.opensuse.security:def:74277
    P
    		Security update for MozillaFirefox (Important)
    2021-04-23
    oval:org.opensuse.security:def:65209
    P
    		Security update for MozillaFirefox (Important)
    2021-04-23
    BACK
    mozilla firefox *
    mozilla firefox esr *
    mozilla thunderbird *
    mozilla thunderbird 78.9.0
    ibm application performance management 8.1.4