Vulnerability Name:

CVE-2021-29945 (CCN-200195)

Assigned:2021-04-19
Published:2021-04-19
Updated:2021-06-30
Summary:The WebAssembly JIT could miscalculate the size of a return type, which could lead to a null read and result in a crash.
Note: This issue only affected x86-32 platforms. Other platforms are unaffected. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.
CVSS v3 Severity:6.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
5.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/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): None
Integrity (I): None
Availibility (A): High
6.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
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:N/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): None
Integrity (I): None
Availibility (A): High
6.1 Medium (REDHAT CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)
5.3 Medium (REDHAT Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/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): Changed
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
6.8 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-682
CWE-476
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2021-29945

Source: MISC
Type: Issue Tracking, Permissions Required, Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1700690

Source: XF
Type: UNKNOWN
firefox-cve202129945-dos(200195)

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-2021-29945

Vulnerable Configuration:Configuration 1:
  • cpe:/a:mozilla:firefox:*:*:*:*:*:*:x86:* (Version < 88.0)
  • OR cpe:/a:mozilla:firefox_esr:*:*:*:*:*:*:x86:* (Version < 78.10)
  • OR cpe:/a:mozilla:thunderbird:*:*:*:*:*:*:x86:* (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:*:*:*:*:*:*:*

    • * 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