Vulnerability Name:

CVE-2021-29976 (CCN-205294)

Assigned:2021-07-13
Published:2021-07-13
Updated:2022-12-09
Summary:Mozilla developers reported memory safety bugs present in code shared between Firefox and Thunderbird. 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 Thunderbird < 78.12, Firefox ESR < 78.12, and Firefox < 90.
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:6.8 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
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-120
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2021-29976

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

Source: XF
Type: UNKNOWN
firefox-cve202129976-code-exec(205294)

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 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: IBM Security Bulletin 6520788 (Cloud Pak for Multicloud Management)
IBM Cloud Pak for Multicloud Management Monitoringhas applied security fixes for its use of Mozilla Firefox

Source: CCN
Type: Mozilla Foundation Security Advisory 2021-28
Security Vulnerabilities fixed in Firefox 90

Source: CCN
Type: Mozilla Foundation Security Advisory 2021-29
Security Vulnerabilities fixed in Firefox ESR 78.12

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:89.0:*:*:*:*:*:*:*
  • 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:6107
    P
    		Security update for libnl3 (Moderate) (in QA)
    2022-08-08
    oval:org.opensuse.security:def:95333
    P
    		Security update for crash (Important) (in QA)
    2022-07-21
    oval:org.opensuse.security:def:6095
    P
    		Security update for xorg-x11-server (Important)
    2022-07-12
    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:3546
    P
    		libICE6-1.0.8-12.1 on GA media (Moderate)
    2022-06-28
    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:94785
    P
    		policycoreutils-3.1-150400.1.5 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:111905
    P
    		MozillaThunderbird-91.1.1-1.1 on GA media (Moderate)
    2022-01-17
    oval:org.opensuse.security:def:111899
    P
    		MozillaFirefox-92.0-1.2 on GA media (Moderate)
    2022-01-17
    oval:org.opensuse.security:def:99707
    P
    		 (Important)
    2021-12-22
    oval:org.opensuse.security:def:100016
    P
    		 (Moderate)
    2021-11-16
    oval:org.opensuse.security:def:93108
    P
    		 (Important)
    2021-10-25
    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:101498
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:93261
    P
    		 (Important)
    2021-08-17
    oval:org.opensuse.security:def:110990
    P
    		Security update for MozillaThunderbird (Important)
    2021-08-04
    oval:org.opensuse.security:def:91972
    P
    		Security update for MozillaFirefox (Important)
    2021-07-27
    oval:org.opensuse.security:def:9370
    P
    		Security update for MozillaFirefox (Important)
    2021-07-27
    oval:org.opensuse.security:def:69510
    P
    		Security update for MozillaFirefox (Important)
    2021-07-27
    oval:org.opensuse.security:def:99117
    P
    		Security update for MozillaFirefox (Important)
    2021-07-27
    oval:org.opensuse.security:def:92757
    P
    		Security update for MozillaFirefox (Important)
    2021-07-27
    oval:org.opensuse.security:def:10309
    P
    		Security update for MozillaFirefox (Important)
    2021-07-27
    oval:org.opensuse.security:def:70449
    P
    		Security update for MozillaFirefox (Important)
    2021-07-27
    oval:org.opensuse.security:def:8626
    P
    		Security update for MozillaFirefox (Important)
    2021-07-27
    oval:org.opensuse.security:def:66874
    P
    		Security update for MozillaFirefox (Important)
    2021-07-27
    oval:org.opensuse.security:def:92167
    P
    		Security update for MozillaFirefox (Important)
    2021-07-27
    oval:org.opensuse.security:def:9559
    P
    		Security update for MozillaFirefox (Important)
    2021-07-27
    oval:org.opensuse.security:def:69699
    P
    		Security update for MozillaFirefox (Important)
    2021-07-27
    oval:org.opensuse.security:def:99309
    P
    		Security update for MozillaFirefox (Important)
    2021-07-27
    oval:org.opensuse.security:def:5785
    P
    		Security update for MozillaFirefox (Important)
    2021-07-27
    oval:org.opensuse.security:def:92955
    P
    		Security update for MozillaFirefox (Important)
    2021-07-27
    oval:org.opensuse.security:def:8811
    P
    		Security update for MozillaFirefox (Important)
    2021-07-27
    oval:org.opensuse.security:def:75942
    P
    		Security update for MozillaFirefox (Important)
    2021-07-27
    oval:org.opensuse.security:def:92359
    P
    		Security update for MozillaFirefox (Important)
    2021-07-27
    oval:org.opensuse.security:def:9758
    P
    		Security update for MozillaFirefox (Important)
    2021-07-27
    oval:org.opensuse.security:def:69898
    P
    		Security update for MozillaFirefox (Important)
    2021-07-27
    oval:org.opensuse.security:def:99508
    P
    		Security update for MozillaFirefox (Important)
    2021-07-27
    oval:org.opensuse.security:def:108712
    P
    		Security update for MozillaFirefox (Important)
    2021-07-27
    oval:org.opensuse.security:def:102046
    P
    		Security update for MozillaFirefox (Important)
    2021-07-27
    oval:org.opensuse.security:def:9006
    P
    		Security update for MozillaFirefox (Important)
    2021-07-27
    oval:org.opensuse.security:def:98922
    P
    		Security update for MozillaFirefox (Important)
    2021-07-27
    oval:org.opensuse.security:def:92558
    P
    		Security update for MozillaFirefox (Important)
    2021-07-27
    oval:org.opensuse.security:def:10124
    P
    		Security update for MozillaFirefox (Important)
    2021-07-27
    oval:org.opensuse.security:def:70264
    P
    		Security update for MozillaFirefox (Important)
    2021-07-27
    oval:com.redhat.rhsa:def:20212881
    P
    		RHSA-2021:2881: thunderbird security update (Important)
    2021-07-26
    oval:com.redhat.rhsa:def:20212883
    P
    		RHSA-2021:2883: thunderbird security update (Important)
    2021-07-26
    oval:org.opensuse.security:def:109651
    P
    		Security update for MozillaThunderbird (Important)
    2021-07-22
    oval:org.opensuse.security:def:102985
    P
    		Security update for MozillaThunderbird (Important)
    2021-07-22
    oval:org.opensuse.security:def:76264
    P
    		Security update for MozillaThunderbird (Important)
    2021-07-22
    oval:org.opensuse.security:def:10651
    P
    		Security update for MozillaThunderbird (Important)
    2021-07-22
    oval:org.opensuse.security:def:70791
    P
    		Security update for MozillaThunderbird (Important)
    2021-07-22
    oval:org.opensuse.security:def:102325
    P
    		Security update for MozillaThunderbird (Important)
    2021-07-22
    oval:org.opensuse.security:def:111640
    P
    		Security update for MozillaThunderbird (Important)
    2021-07-22
    oval:org.opensuse.security:def:10688
    P
    		Security update for MozillaThunderbird (Important)
    2021-07-22
    oval:org.opensuse.security:def:70828
    P
    		Security update for MozillaThunderbird (Important)
    2021-07-22
    oval:org.opensuse.security:def:67196
    P
    		Security update for MozillaThunderbird (Important)
    2021-07-22
    oval:org.opensuse.security:def:96313
    P
    		Security update for MozillaThunderbird (Important)
    2021-07-22
    oval:org.opensuse.security:def:119791
    P
    		Security update for MozillaThunderbird (Important)
    2021-07-22
    oval:org.opensuse.security:def:1773
    P
    		Security update for MozillaThunderbird (Important)
    2021-07-22
    oval:org.opensuse.security:def:110977
    P
    		Security update for MozillaFirefox (Important)
    2021-07-20
    oval:org.opensuse.security:def:74297
    P
    		Security update for MozillaFirefox (Important)
    2021-07-19
    oval:org.opensuse.security:def:4204
    P
    		Security update for MozillaFirefox (Important)
    2021-07-19
    oval:org.opensuse.security:def:74361
    P
    		Security update for MozillaFirefox (Important)
    2021-07-19
    oval:org.opensuse.security:def:101708
    P
    		Security update for MozillaFirefox (Important)
    2021-07-19
    oval:org.opensuse.security:def:111626
    P
    		Security update for MozillaFirefox (Important)
    2021-07-19
    oval:org.opensuse.security:def:108164
    P
    		Security update for MozillaFirefox (Important)
    2021-07-19
    oval:org.opensuse.security:def:67184
    P
    		Security update for MozillaFirefox (Important)
    2021-07-19
    oval:org.opensuse.security:def:117678
    P
    		Security update for MozillaFirefox (Important)
    2021-07-19
    oval:org.opensuse.security:def:65229
    P
    		Security update for MozillaFirefox (Important)
    2021-07-19
    oval:org.opensuse.security:def:4140
    P
    		Security update for MozillaFirefox (Important)
    2021-07-19
    oval:org.opensuse.security:def:76252
    P
    		Security update for MozillaFirefox (Important)
    2021-07-19
    oval:org.opensuse.security:def:65293
    P
    		Security update for MozillaFirefox (Important)
    2021-07-19
    oval:org.opensuse.security:def:29397
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:45589
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:59766
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:86604
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:31654
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:55925
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:82604
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:125570
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:23621
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:89163
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:33943
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:57963
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:84637
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:30102
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:51609
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:5076
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:38660
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:60308
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:87427
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:32140
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:56045
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:83309
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:126739
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:23937
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:43090
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:89421
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:34485
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:58786
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:85685
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:30222
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:51925
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:39950
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:88157
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:32963
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:57044
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:83429
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:127136
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:26089
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:44380
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:59508
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:86118
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:31221
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:55220
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:41159
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:88471
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:33685
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:57477
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:org.opensuse.security:def:84178
    P
    		Security update for MozillaFirefox (Important)
    2021-07-16
    oval:com.redhat.rhsa:def:20212741
    P
    		RHSA-2021:2741: firefox security update (Important)
    2021-07-15
    oval:com.redhat.rhsa:def:20212743
    P
    		RHSA-2021:2743: firefox security update (Important)
    2021-07-15
    BACK
    mozilla firefox 89.0
    ibm application performance management 8.1.4