The remote CentOS Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the CESA-2021:5013 advisory.

  - Mozilla: URL leakage when navigating while executing asynchronous function (CVE-2021-43536)

  - Mozilla: Heap buffer overflow when using structured clone (CVE-2021-43537)

  - Mozilla: Missing fullscreen and pointer lock notification when requesting both (CVE-2021-43538)

  - Mozilla: GC rooting failure when calling wasm instance methods (CVE-2021-43539)

  - Mozilla: External protocol handler parameters were unescaped (CVE-2021-43541)

  - Mozilla: XMLHttpRequest error codes could have leaked the existence of an external protocol handler     (CVE-2021-43542)

  - Mozilla: Bypass of CSP sandbox directive when embedding (CVE-2021-43543)

  - Mozilla: Denial of Service when using the Location API in a loop (CVE-2021-43545)

  - Mozilla: Cursor spoofing could overlay user interface when native cursor is zoomed (CVE-2021-43546)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote NewStart CGSL host, running version MAIN 6.02, has firefox packages installed that are affected by multiple vulnerabilities:

  - In Expat (aka libexpat) before 2.4.5, there is an integer overflow in storeRawNames. (CVE-2022-25315)

  - It was possible to construct specific XSLT markup that would be able to bypass an iframe sandbox. This     vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5. (CVE-2021-4140)

  - crossbeam-deque is a package of work-stealing deques for building task schedulers when programming in     Rust. In versions prior to 0.7.4 and 0.8.0, the result of the race condition is that one or more tasks in     the worker queue can be popped twice instead of other tasks that are forgotten and never popped. If tasks     are allocated on the heap, this can cause double free and a memory leak. If not, this still can cause a     logical bug. Crates using `Stealer::steal`, `Stealer::steal_batch`, or `Stealer::steal_batch_and_pop` are     affected by this issue. This has been fixed in crossbeam-deque 0.8.1 and 0.7.4. (CVE-2021-32810)

  - Mozilla developers reported memory safety bugs present in Firefox 91 and Firefox ESR 78.13. 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. This vulnerability affects Firefox ESR < 78.14, Thunderbird < 78.14,     and Firefox < 92. (CVE-2021-38493)

  - During operations on MessageTasks, a task may have been removed while it was still scheduled, resulting in     memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.15,     Thunderbird < 91.2, Firefox ESR < 91.2, Firefox ESR < 78.15, and Firefox < 93. (CVE-2021-38496)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Published	Updated	Severity
155997	CentOS 8 : firefox (CESA-2021:5013)	Nessus	CentOS Local Security Checks	12/10/2021	11/22/2023	high
206859	NewStart CGSL MAIN 6.02 : firefox Multiple Vulnerabilities (NS-SA-2024-0066)	Nessus	NewStart CGSL Local Security Checks	9/10/2024	9/25/2025	critical

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