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
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
EPSS
Percentile
86.4%
Improper refcounting of soft token session objects could cause a use-after-free and crash (likely limited to a denial of service).
When using nested workers, a use-after-free could occur during worker destruction. This resulted in a potentially exploitable crash.
When setting a thread name on Windows in WebRTC, an incorrect number of arguments could have been supplied, leading to stack corruption and a potentially exploitable crash. Note: this issue only occurs on Windows. Other operating systems are unaffected.
When encrypting with a block cipher, if a call to NSC_EncryptUpdate was made with data smaller than the block size, a small out of bounds write could occur. This could have caused heap corruption and a potentially exploitable crash.
If an image had not loaded correctly (such as when it is not actually an image), it could be dragged and dropped cross-domain, resulting in a cross-origin information leak.
When running, the updater service wrote status and log files to an unrestricted location; potentially allowing an unprivileged process to locate and exploit a vulnerability in file handling in the updater service. Note: This attack requires local system access and only affects Windows. Other operating systems are not affected.
Under certain conditions, when checking the Resist Fingerprinting preference during device orientation checks, a race condition could have caused a use-after-free and a potentially exploitable crash.
The plain text serializer used a fixed-size array for the number of
Under certain conditions, when retrieving a document from a DocShell in the antitracking code, a race condition could cause a use-after-free condition and a potentially exploitable crash.
Mozilla developers Christoph Diehl, Nathan Froyd, Jason Kratzer, Christian Holler, Karl Tomlinson, Tyson Smith reported memory safety bugs present in Firefox 70 and Firefox ESR 68.2. 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.
Mozilla developers and community members Philipp, Diego Calleja, Mikhail Gavrilov, Jason Kratzer, Christian Holler, Markus Stange, Tyson Smith reported memory safety bugs present in Firefox 70. 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.
bugzilla.mozilla.org/buglist.cgi?bug_id=1298509%2C1472328%2C1577439%2C1577937%2C1580320%2C1584195%2C1585106%2C1586293%2C1593865%2C1594181
bugzilla.mozilla.org/buglist.cgi?bug_id=1449736%2C1533957%2C1560667%2C1567209%2C1580288%2C1585760%2C1592502
bugzilla.mozilla.org/show_bug.cgi?id=1322864
bugzilla.mozilla.org/show_bug.cgi?id=1508776
bugzilla.mozilla.org/show_bug.cgi?id=1510494
bugzilla.mozilla.org/show_bug.cgi?id=1546331
bugzilla.mozilla.org/show_bug.cgi?id=1580156
bugzilla.mozilla.org/show_bug.cgi?id=1581084
bugzilla.mozilla.org/show_bug.cgi?id=1584170
bugzilla.mozilla.org/show_bug.cgi?id=1586176
bugzilla.mozilla.org/show_bug.cgi?id=1591334
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
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
EPSS
Percentile
86.4%