A comunidade Debian liberou um pacote de atualizações de segurança que você deve fazer, confira.

Atualização de segurança Debian 11.4 Bullseye

A experiência mostrou que a segurança através da obscuridade nunca funciona. Portanto, a divulgação pública permite soluções mais rápidas e melhores dos problemas de segurança. A esse respeito, esta página aborda o status do Debian em relação a várias falhas de segurança conhecidas, que podem afetar potencialmente o sistema operacional Debian. 

"O Debian leva a segurança muito a sério. Lidamos com todos os problemas de segurança trazidos ao nosso conhecimento e garantimos que sejam corrigidos dentro de um prazo razoável."

O projeto Debian coordena muitos alertas de segurança com outros(as) fornecedores(as) de software livre e, como resultado, esses alertas são publicados no mesmo dia em que uma vulnerabilidade é tornada pública.

 Lista das atualizações no quadro abaixo.

 
Listing... firefox-esr-l10n-ar/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-ast/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-be/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-bg/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-bn/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-bs/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-ca/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-cs/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-cy/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-da/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-de/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-el/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-en-gb/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-eo/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-es-ar/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-es-cl/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-es-es/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-es-mx/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-et/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-eu/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-fa/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-fi/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-fr/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-ga-ie/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-gl/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-gu-in/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-he/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-hi-in/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-hr/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-hu/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-id/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-is/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-it/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-ja/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-kk/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-km/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-kn/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-ko/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-lt/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-lv/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-mk/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-mr/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-nb-no/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-ne-np/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-nl/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-nn-no/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-pa-in/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-pl/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-pt-br/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-pt-pt/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-ro/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-ru/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-si/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-sk/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-sl/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-sq/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-sr/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-sv-se/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-ta/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-te/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-th/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-tr/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-uk/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-vi/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-zh-cn/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr-l10n-zh-tw/stable-security 91.12.0esr-1~deb11u1 all [upgradable from: 91.11.0esr-1~deb11u1] firefox-esr/stable-security 91.12.0esr-1~deb11u1 amd64 [upgradable from: 91.11.0esr-1~deb11u1] gir1.2-javascriptcoregtk-4.0/stable-security 2.36.4-1~deb11u1 amd64 [upgradable from: 2.36.3-1~deb11u1] gir1.2-webkit2-4.0/stable-security 2.36.4-1~deb11u1 amd64 [upgradable from: 2.36.3-1~deb11u1] gsasl-common/stable-security 1.10.0-4+deb11u1 all [upgradable from: 1.10.0-4] libgsasl7/stable-security 1.10.0-4+deb11u1 amd64 [upgradable from: 1.10.0-4] libjavascriptcoregtk-4.0-18/stable-security 2.36.4-1~deb11u1 amd64 [upgradable from: 2.36.3-1~deb11u1] libwebkit2gtk-4.0-37/stable-security 2.36.4-1~deb11u1 amd64 [upgradable from: 2.36.3-1~deb11u1] linux-compiler-gcc-10-x86/stable-security 5.10.127-2 amd64 [upgradable from: 5.10.127-1] linux-image-5.10.0-16-amd64/stable-security 5.10.127-2 amd64 [upgradable from: 5.10.127-1] linux-image-amd64/stable-security 5.10.127-2 amd64 [upgradable from: 5.10.127-1] linux-kbuild-5.10/stable-security 5.10.127-2 amd64 [upgradable from: 5.10.127-1] linux-libc-dev/stable-security 5.10.127-2 amd64 [upgradable from: 5.10.127-1]

 

Fonte

Atualizar

Para atualizar o seu Debian e receber as correções de seurança exeute no terminal.

sudo apt update ; sudo apt full-upgrade