Mozilla Firefox
Mozilla Firefox é um navegador livre e multiplataforma desenvolvido pela Mozilla Foundation com ajuda de centenas de colaboradores. A intenção da fundação é desenvolver um navegador leve, seguro, intuitivo e altamente extensível. Wikipédia
Novidades
Distribuímos o WebRender para mais usuários do Windows com GPUs Intel e AMD, trazendo melhor desempenho gráfico para um público ainda maior.
Os usuários do Firefox na Alemanha agora verão mais recomendações do Pocket em sua nova guia, com algumas das melhores histórias da web. Se você não os vir, poderá ativar os artigos do Pocket em sua nova guia, seguindo estas etapas.
Os usuários do Firefox na Alemanha agora verão mais recomendações do Pocket em sua nova guia, com algumas das melhores histórias da web. Se você não os vir, poderá ativar os artigos do Pocket em sua nova guia, seguindo estas etapas.
* Para utilizar o WebRender no Linux confira nossa matéria abaixo.
Navegador Firefox com menor consumo de processador no Linux
Se o seu Firefox está consumindo muita CPU e com navegação e rolagem de paginas com problemas, confira essa matéria.
Correções
Confira abaixo as correções de segurança que a versão 79 recebeu.
Security Vulnerabilities fixed in Firefox 79
Announced
July 28, 2020
Impact
high
Products
Firefox
Fixed in
Firefox 79
#CVE-2020-15652: Potential leak of redirect targets when loading scripts in a worker
Reporter
Mikhail Oblozhikhin
Impact
high
Description
By observing the stack trace for JavaScript errors in web workers, it was possible to leak the result of a cross-origin redirect. This applied only to content that can be parsed as script.
References
Bug 1634872
#CVE-2020-6514: WebRTC data channel leaks internal address to peer
Reporter
Natalie Silvanovich of Google Project Zero
Impact
high
Description
WebRTC used the memory address of a class instance as a connection identifier. Unfortunately, this value is often transmitted to the peer, which allows bypassing ASLR.
References
Bug 1642792
#CVE-2020-15655: Extension APIs could be used to bypass Same-Origin Policy
Reporter
Rob Wu
Impact
high
Description
Mozilla Developer Rob Wu discovered that a redirected HTTP request which is observed or modified through a web extension could bypass existing CORS checks, leading to potential disclosure of cross-origin information.
References
Bug 1645204
#CVE-2020-15653: Bypassing iframe sandbox when allowing popups
Reporter
Anne van Kesteren
Impact
moderate
Description
Mozilla developer Anne van Kesteren discovered that iframe sandbox="" with the allow-popups flag could be bypassed when using noopener links. This could have led to security issues for websites relying on sandbox configurations that allowed popups and hosted arbitrary content.
References
Bug 1521542
#CVE-2020-6463: Use-after-free in ANGLE gl::Texture::onUnbindAsSamplerTexture
Reporter
Reported by Pawel Wylecial of REDTEAM.PL
Impact
moderate
Description
Crafted media files could lead to a race in texture caches, resulting in a use-after-free, memory corruption, and a potentially exploitable crash.
References
Bug 1635293
#CVE-2020-15656: Type confusion for special arguments in IonMonkey
Reporter
Carl Smith, working with Google Project Zero
Impact
moderate
Description
JIT optimizations involving the Javascript arguments object could confuse later optimizations. This risk was already mitigated by various precautions in the code, resulting in this bug rated at only moderate severity.
References
Bug 1647293
#CVE-2020-15658: Overriding file type when saving to disk
Reporter
belden
Impact
low
Description
The code for downloading files did not properly take care of special characters, which led to an attacker being able to cut off the file ending at an earlier position, leading to a different file type being downloaded than shown in the dialog.
References
Bug 1637745
#CVE-2020-15657: DLL hijacking due to incorrect loading path
Reporter
Steve Nyan Lin
Impact
low
Description
Firefox could be made to load attacker-supplied DLL files from the installation directory. This required an attacker that is already capable of placing files in the installation directory.
Note: This issue only affected Windows operating systems. Other operating systems are unaffected.
References
Bug 1644954
#CVE-2020-15654: Custom cursor can overlay user interface
Reporter
SophosLabs Offensive Security team
Impact
low
Description
When in an endless loop, a website specifying a custom cursor using CSS could make it look like the user is interacting with the user interface, when they are not. This could lead to a perceived broken state, especially when interactions with existing browser dialogs and warnings do not work.
References
Bug 1648333
#CVE-2020-15659: Memory safety bugs fixed in Firefox 79
Reporter
Mozilla developers and community
Impact
high
Description
Mozilla developers and community members Kevin Brosnan, Alexandru Michis, Natalia Csoregi, Jason Kratzer, Christian Holler, Simon Giesecke, Luke Wagner reported memory safety bugs present in Firefox 78. 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.
References
Memory safety bugs fixed in Firefox 79
Fonte
Instalação
Para ter o fiorefox sempre atualizado em sua distribuição, confira a nossa matéria abaixo.
Instalar Firefox sempre atualizado na sua distribuição GNU/Linux
O método pode ser usado em qualquer distribuição GNU/Linux.
Ai está o meu atualizado.
Comentários
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olá, seja bem vindo ao Linux Dicas e suporte !!