9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.003 Low
EPSS
Percentile
67.3%
Mozilla Thunderbird is a standalone mail and newsgroup client.
This update upgrades Thunderbird to version 78.9.0.
Security Fix(es):
Mozilla: Texture upload into an unbound backing buffer resulted in an out-of-bound read (CVE-2021-23981)
Mozilla: Memory safety bugs fixed in Firefox 87 and Firefox ESR 78.9 (CVE-2021-23987)
Mozilla: Internal network hosts could have been probed by a malicious webpage (CVE-2021-23982)
Mozilla: Malicious extensions could have spoofed popup information (CVE-2021-23984)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
RedHat | 8 | ppc64le | thunderbird | < 78.9.0-3.el8_1 | thunderbird-78.9.0-3.el8_1.ppc64le.rpm |
RedHat | 8 | ppc64le | thunderbird-debuginfo | < 78.9.0-3.el8_1 | thunderbird-debuginfo-78.9.0-3.el8_1.ppc64le.rpm |
RedHat | 8 | x86_64 | thunderbird-debugsource | < 78.9.0-3.el8_1 | thunderbird-debugsource-78.9.0-3.el8_1.x86_64.rpm |
RedHat | 8 | ppc64le | thunderbird-debugsource | < 78.9.0-3.el8_1 | thunderbird-debugsource-78.9.0-3.el8_1.ppc64le.rpm |
RedHat | 8 | x86_64 | thunderbird-debuginfo | < 78.9.0-3.el8_1 | thunderbird-debuginfo-78.9.0-3.el8_1.x86_64.rpm |
RedHat | 8 | x86_64 | thunderbird | < 78.9.0-3.el8_1 | thunderbird-78.9.0-3.el8_1.x86_64.rpm |
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.003 Low
EPSS
Percentile
67.3%