Firefox 113 é lançado com novidades e correções de segurança.

Lançado o navegador de internet Firefox 113

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:

Picture-in-Picture aprimorado
Barra de endereços aprimorada
Janelas privadas com mais proteção
Senhas automáticas com caracteres especiais
Mecanismo de acessibilidade reprojetado
Importação de favoritos do Safari ou de um navegador baseado no Chrome com favicons
Suporte a AV1 Image

Correções

No quadro temos as correções de segurança do Firefox 113.

Security Vulnerabilities fixed in Firefox 113 Announced May 9, 2023 Impact high Products Firefox Fixed in Firefox 113 #CVE-2023-32205: Browser prompts could have been obscured by popups Reporter Alesandro Ortiz Impact high Description In multiple cases browser prompts could have been obscured by popups controlled by content. These could have led to potential user confusion and spoofing attacks. References Bug 1753339 Bug 1753341 #CVE-2023-32206: Crash in RLBox Expat driver Reporter Irvan Kurniawan Impact high Description An out-of-bound read could have led to a crash in the RLBox Expat driver. References Bug 1824892 #CVE-2023-32207: Potential permissions request bypass via clickjacking Reporter Hafiizh Impact high Description A missing delay in popup notifications could have made it possible for an attacker to trick a user into granting permissions. References Bug 1826116 #CVE-2023-32208: Leak of script base URL in service workers via import() Reporter Anne van Kesteren Impact moderate Description Service workers could reveal script base URL due to dynamic import(). References Bug 1646034 #CVE-2023-32209: Persistent DoS via favicon image Reporter Sam Ezeh Impact moderate Description A maliciously crafted favicon could have led to an out of memory crash. References Bug 1767194 #CVE-2023-32210: Incorrect principal object ordering Reporter Nika Layzell Impact moderate Description Documents were incorrectly assuming an ordering of principal objects when ensuring we were loading an appropriately privileged principal. In certain circumstances it might have been possible to cause a document to be loaded with a higher privileged principal than intended. References Bug 1776755 #CVE-2023-32211: Content process crash due to invalid wasm code Reporter P1umer and xmzyshypnc Impact moderate Description A type checking bug would have led to invalid code being compiled. References Bug 1823379 #CVE-2023-32212: Potential spoof due to obscured address bar Reporter Hafiizh Impact moderate Description An attacker could have positioned a datalist element to obscure the address bar. References Bug 1826622 #CVE-2023-32213: Potential memory corruption in FileReader::DoReadData() Reporter Ronald Crane Impact moderate Description When reading a file, an uninitialized value could have been used as read limit. References Bug 1826666 #MFSA-TMP-2023-0002: Race condition in dav1d decoding Reporter Tyson Smith Impact moderate Description A race condition during dav1d decoding could have led to an out-of-bounds memory access, potentially leading to memory corruption and execution of malicious code. References Bug 1814790 Bug 1819796 Bug 1814560 #CVE-2023-32214: Potential DoS via exposed protocol handlers Reporter Gijs Kruitbosch Impact low Description Protocol handlers ms-cxh and ms-cxh-full could have been leveraged to trigger a denial of service. Note: This attack only affects Windows. Other operating systems are not affected. References Bug 1828716 #CVE-2023-32215: Memory safety bugs fixed in Firefox 113 and Firefox ESR 102.11 Reporter Mozilla developers and community Impact high Description Mozilla developers and community members Gabriele Svelto, Andrew Osmond, Emily McDonough, Sebastian Hengst, Andrew McCreight and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 112 and Firefox ESR 102.10. 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 113 and Firefox ESR 102.11 #CVE-2023-32216: Memory safety bugs fixed in Firefox 113 Reporter Mozilla developers and community Impact high Description Mozilla developers and community members Ronald Crane, Andrew McCreight, Randell Jesup and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 112. 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 113

Instalação

Caso a sua distribição tenha o Firefox em seus repositórios, aguarde que em breve chega a atualização para você. Caso não tenha confira.

A instalação sera feita usando o Firefox dos servidores da Mozilla e instalado no diretório /opt.
Abra o terminal e de os comandos na sequencia.

Entre no diretório de trabalho.

cd /opt

De o comando abaixo para fazer o download da ultima versão do Firefox, escolha a sua plataforma e linguagem.

Firefox i686 ( 32 bits ) PT_BR

sudo wget -O firefox.tar.bz2 "https://download.mozilla.org/?product=firefox-latest&os=linux&lang=pt-BR"

Firefox i686 ( 32 bits ) EN_US

sudo wget -O firefox.tar.bz2 "https://download.mozilla.org/?product=firefox-latest&os=linux&lang=en-US"

Firefox amd64 ( 64 bits ) PT_BR

sudo wget -O firefox.tar.bz2 "https://download.mozilla.org/?product=firefox-latest&os=linux64&lan=pt-BR"

Firefox amd64 ( 64 bits ) EN_US

sudo wget -O firefox.tar.bz2 "https://download.mozilla.org/?product=firefox-latest&os=linux64&lang=en-US"

Descompacte o arquivo do download.

sudo tar -jxvf /opt/firefox.tar.bz2

Vamos criar o atalho no menu, de o comando abaixo no terminal.

sudo nano /usr/share/applications/Firefox.desktop

Copie as linhas abaixo em vermelho no arquivo aberto,salve e feche.

[Desktop Entry]
Encoding=UTF-8
Name=Firefox
Comment=Browse the World Wide Web
GenericName=Web Browser
X-GNOME-FullName=Firefox Web Browser
Exec=/opt/firefox/firefox %u
Terminal=false
X-MultipleArgs=false
Type=Application
Icon=/opt/firefox/browser/chrome/icons/default/default48.png
Categories=Network;WebBrowser;
MimeType=text/html;text/xml;application/xhtml+xml;application/xml;application/vnd.mozilla.xul+xml;application/rss+xml;application/rdf+xml;image/gif;image/jpeg;image/png;x-scheme-handler/http;x-scheme-handler/https;
StartupWMClass=Firefox
StartupNotify=true

Deve ficar como na imagem.

Salve teclando ctrl +x tecle s e tecle Enter para fechar.

Para finalizar vamos tornar o seu usuário dono do diretório do Firefox, com isso o Firefox ira atualizar automaticamente quando a Mozilla liberar atualizações.

sudo chown -R $USER:$USER /opt/firefox

Firefox instalado e atualizado.

Fonte

Linux Dicas e Suporte