8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.8 Medium
CVSS2
Access Vector
NETWORK
Access 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
0.004 Low
EPSS
Percentile
72.4%
When a BigInt was right-shifted the backing store was not properly cleared, allowing uninitialized memory to be read.
Certain blit values provided by the user were not properly constrained leading to a heap buffer overflow on some video drivers.
Certain input to the CSS Sanitizer confused it, resulting in incorrect components being removed. This could have been used as a sanitizer bypass.
When flex-basis was used on a table wrapper, a StyleGenericFlexBasis object could have been incorrectly cast to the wrong type. This resulted in a heap user-after-free, memory corruption, and a potentially exploitable crash.
Using techniques that built on the slipstream research, a malicious webpage could have exposed both an internal network’s hosts as well as services running on the user’s local machine.
When an extension with the proxy permission registered to receive , the proxy.onRequest callback was not triggered for view-source URLs. While web content cannot navigate to such URLs, a user opening View Source could have inadvertently leaked their IP address.
If a user downloaded a file lacking an extension on Windows, and then “Open”-ed it from the downloads panel, if there was an executable file in the downloads directory with the same name but with an executable extension (such as .bat or .exe) that executable would have been launched instead.Note: This issue only affected Windows operating systems. Other operating systems are unaffected.
Mozilla developer Christian Holler reported memory safety bugs present in Thunderbird 78.5. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code.
CPE | Name | Operator | Version |
---|---|---|---|
thunderbird | lt | 78.6 |
bugzilla.mozilla.org/buglist.cgi?bug_id=1664831%2C1673589
bugzilla.mozilla.org/show_bug.cgi?id=1657916
bugzilla.mozilla.org/show_bug.cgi?id=1661365
bugzilla.mozilla.org/show_bug.cgi?id=1663466
bugzilla.mozilla.org/show_bug.cgi?id=1677047
bugzilla.mozilla.org/show_bug.cgi?id=1679003
bugzilla.mozilla.org/show_bug.cgi?id=1680084
bugzilla.mozilla.org/show_bug.cgi?id=1681022
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.8 Medium
CVSS2
Access Vector
NETWORK
Access 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
0.004 Low
EPSS
Percentile
72.4%