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
0.003 Low
EPSS
Percentile
67.8%
CentOS Errata and Security Advisory CESA-2021:0996
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.
Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2021-March/086088.html
Affected packages:
thunderbird
Upstream details at:
https://access.redhat.com/errata/RHSA-2021:0996
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
CentOS | 7 | x86_64 | thunderbird | < 78.9.0-3.el7.centos | thunderbird-78.9.0-3.el7.centos.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
0.003 Low
EPSS
Percentile
67.8%