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
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
EPSS
Percentile
82.8%
Due to a data race in the crossbeam-deque in the crossbeam crate, one or more tasks in the worker queue could have been be popped twice instead of other tasks that are forgotten and never popped. If tasks are allocated on the heap, this could have caused a double free and a memory leak (CVE-2021-32810). During operations on MessageTasks, a task may have been removed while it was still scheduled, resulting in memory corruption and a potentially exploitable crash due to a use-after-free in MessageTask (CVE-2021-38496). Through use of reportValidity() and window.open(), a plain-text validation message could have been overlaid on another origin, leading to possible user confusion and spoofing attacks (CVE-2021-38497). During process shutdown, a document could have caused a use-after-free of a languages service object (nsLanguageAtomService), leading to memory corruption and a potentially exploitable crash (CVE-2021-38498). Mozilla developers and community members Andreas Pehrson, Christian Holler, Kevin Brosnan, and Mihai Alexandru Michis reported memory safety bugs present in Firefox ESR 91.1. 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 (CVE-2021-38500, CVE-2021-38501).
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Mageia | 8 | noarch | firefox | < 91.2.0-1 | firefox-91.2.0-1.mga8 |
Mageia | 8 | noarch | firefox-l10n | < 91.2.0-1 | firefox-l10n-91.2.0-1.mga8 |
Mageia | 8 | noarch | nss | < 3.71.0-1 | nss-3.71.0-1.mga8 |
Mageia | 8 | noarch | rootcerts | < 20210907.00-1 | rootcerts-20210907.00-1.mga8 |
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
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
EPSS
Percentile
82.8%