6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
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
0.009 Low
EPSS
Percentile
82.7%
Mozilla Thunderbird is a standalone mail and newsgroup client.
This update upgrades Thunderbird to version 91.2.0.
Security Fix(es):
Mozilla: Use-after-free in MessageTask (CVE-2021-38496)
Mozilla: Memory safety bugs fixed in Firefox 93, Firefox ESR 78.15, and Firefox ESR 91.2 (CVE-2021-38500)
Mozilla: Memory safety bugs fixed in Firefox 93 and Firefox ESR 91.2 (CVE-2021-38501)
Mozilla: Downgrade attack on SMTP STARTTLS connections (CVE-2021-38502)
rust-crossbeam-deque: race condition may lead to double free (CVE-2021-32810)
Mozilla: Validation message could have been overlaid on another origin (CVE-2021-38497)
Mozilla: Use-after-free of nsLanguageAtomService object (CVE-2021-38498)
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 | 7 | ppc64le | thunderbird | < 91.2.0-1.el7_9 | thunderbird-91.2.0-1.el7_9.ppc64le.rpm |
RedHat | 7 | ppc64le | thunderbird-debuginfo | < 91.2.0-1.el7_9 | thunderbird-debuginfo-91.2.0-1.el7_9.ppc64le.rpm |
RedHat | 7 | x86_64 | thunderbird | < 91.2.0-1.el7_9 | thunderbird-91.2.0-1.el7_9.x86_64.rpm |
RedHat | 7 | x86_64 | thunderbird-debuginfo | < 91.2.0-1.el7_9 | thunderbird-debuginfo-91.2.0-1.el7_9.x86_64.rpm |
6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
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
0.009 Low
EPSS
Percentile
82.7%