Vulnerability Name:

CVE-2021-29969 (CCN-205302)

Assigned:2021-07-13
Published:2021-07-13
Updated:2022-12-09
Summary:If Thunderbird was configured to use STARTTLS for an IMAP connection, and an attacker injected IMAP server responses prior to the completion of the STARTTLS handshake, then Thunderbird didn't ignore the injected data. This could have resulted in Thunderbird showing incorrect information, for example the attacker could have tricked Thunderbird to show folders that didn't exist on the IMAP server. This vulnerability affects Thunderbird < 78.12.
CVSS v3 Severity:5.9 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)
5.2 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
7.4 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N)
6.4 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): None
5.9 Medium (REDHAT CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)
5.2 Medium (REDHAT Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
7.1 High (CCN CVSS v2 Vector: AV:N/AC:H/Au:N/C:C/I:C/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): High
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): None
Vulnerability Type:CWE-345
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2021-29969

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

Source: XF
Type: UNKNOWN
mozilla-thunderbird-cve202129969-info-disc(205302)

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

Source: CCN
Type: Mozilla Foundation Security Advisory 2021-30
Security Vulnerabilities fixed in Thunderbird 78.12

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:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:3546
    P
    		MozillaThunderbird-91.8.0-150200.8.65.1 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:111905
    P
    		MozillaThunderbird-91.1.1-1.1 on GA media (Moderate)
    2022-01-17
    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:110990
    P
    		Security update for MozillaThunderbird (Important)
    2021-08-04
    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:96313
    P
    		Security update for MozillaThunderbird (Important)
    2021-07-22
    oval:org.opensuse.security:def:6107
    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:111640
    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: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: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:109651
    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:76264
    P
    		Security update for MozillaThunderbird (Important)
    2021-07-22
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