Vulnerability Name:

CVE-2021-43528 (CCN-214746)

Assigned:2021-12-07
Published:2021-12-07
Updated:2022-12-09
Summary:Thunderbird unexpectedly enabled JavaScript in the composition area. The JavaScript execution context was limited to this area and did not receive chrome-level privileges, but could be used as a stepping stone to further an attack with other vulnerabilities. This vulnerability affects Thunderbird < 91.4.0.
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:H/A:N)
5.7 Medium (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
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
6.3 Medium (REDHAT CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L)
5.5 Medium (REDHAT Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/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): Low
Integrity (I): Low
Availibility (A): Low
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-281
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2021-43528

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

Source: XF
Type: UNKNOWN
thunderbird-cve202143528-sec-bypass(214746)

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: Issue Tracking, Third Party Advisory
security@mozilla.org

Source: CCN
Type: Mozilla Foundation Security Advisory 2021-54
Security Vulnerabilities fixed in Thunderbird 91.4.0

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

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

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    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:111908
    P
    		MozillaThunderbird-91.4.0-1.1 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:103004
    P
    		Security update for MozillaThunderbird (Important)
    2021-12-22
    oval:org.opensuse.security:def:10670
    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:102344
    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:119810
    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:109670
    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:96332
    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:67365
    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:com.redhat.rhsa:def:20215045
    P
    		RHSA-2021:5045: thunderbird security update (Important)
    2021-12-09
    oval:com.redhat.rhsa:def:20215046
    P
    		RHSA-2021:5046: thunderbird security update (Important)
    2021-12-09
    BACK