Simon Friedberger

Nome do software vulnerável e versões afetadas: Versões do Firefox anteriores à 125 Descrição: O problema está relacionado a falhas de segurança de memória presentes no Firefox, algumas das quais apresentaram indícios de corrupção de memória. Presume-se que, com esforço suficiente, algumas dessas falhas poderiam ter sido exploradas para executar código arbitrário. A vulnerabilidade também é descrita como um estouro de buffer na memória durante o processamento de conteúdo HTML, o que poderia permitir que um invasor remoto executasse código arbitrário. Recomendações: Para versões anteriores à 125, atualize para a versão 125 ou posterior para resolver o problema. Como solução temporária, considere restringir o acesso a conteúdo HTML potencialmente vulnerável até que a atualização seja aplicada.

**Nome do software vulnerável e versões afetadas** Versões do iOS anteriores à 15.2 Versões do iPadOS anteriores à 15.2 **Descrição** Existia uma falha no S/MIME no tratamento de e-mails criptografados, permitindo que um invasor pudesse recuperar o conteúdo em texto simples de um e-mail criptografado por S/MIME. Essa falha foi corrigida com a exclusão do carregamento automático de algumas partes MIME. **Recomendações** Para versões do iOS anteriores à 15.2, atualize para o iOS 15.2 ou posterior para resolver o problema. Para versões do iPadOS anteriores à 15.2, atualize para o iPadOS 15.2 ou posterior para resolver o problema.

**Name of the Vulnerable Software and Affected Versions** Thunderbird versions prior to 52.9 **Description** The issue is related to the decryption of S/MIME parts in HTML messages, which can lead to plaintext leakage when included in a reply or forward. This is due to a lack of protection for certain data in the S/MIME and PGP functions of the Thunderbird email client. An attacker can exploit this issue by manipulating HTML messages to gain unauthorized access to protected information. **Recommendations** For versions prior to 52.9, update to version 52.9 or later to resolve the issue. As a temporary workaround, consider avoiding the use of HTML replies or forwards for sensitive messages until the update is applied. Restrict access to sensitive information when using the affected Thunderbird versions to minimize the risk of exploitation.

**Name of the Vulnerable Software and Affected Versions** Thunderbird versions prior to 52.9 **Description** The issue is related to the Secure/Multipurpose Internet Mail Extensions (S/MIME) function in the Thunderbird email client, which lacks protection for certain data. This can allow a remote attacker to gain unauthorized access to protected information when an email is forwarded or replied to. Specifically, decrypted S/MIME parts that are hidden using CSS or the plaintext HTML tag can leak plaintext when included in an HTML reply or forward. **Recommendations** For versions prior to 52.9, update to version 52.9 or later to resolve the issue. As a temporary workaround, consider avoiding the use of HTML replies or forwards for emails containing sensitive S/MIME-protected information until the update is applied.

**Name of the Vulnerable Software and Affected Versions** iOS versions prior to 11.4 macOS versions prior to 10.13.5 **Description** The issue involves the Security component and allows websites to track users by leveraging the transmission of S/MIME client certificates. **Recommendations** For iOS versions prior to 11.4, update to version 11.4 or later. For macOS versions prior to 10.13.5, update to version 10.13.5 or later.

**Name of the Vulnerable Software and Affected Versions** iOS versions prior to 11.4 macOS versions prior to 10.13.5 **Description** The issue involves the Mail component and allows remote attackers to read the cleartext content of S/MIME encrypted messages via direct exfiltration. **Recommendations** For iOS versions prior to 11.4, update to version 11.4 or later. For macOS versions prior to 10.13.5, update to version 10.13.5 or later.

**Name of the Vulnerable Software and Affected Versions** Thunderbird ESR versions prior to 52.8 Thunderbird versions prior to 52.8 **Description** The issue is related to the implementation of the S/MIME protocol in the Thunderbird email client, which is associated with insufficiently robust data encryption. This can lead to the disclosure of plaintext when using remote content in encrypted messages. Exploitation of the issue may allow a remote attacker to gain unauthorized access to protected information. **Recommendations** For Thunderbird ESR versions prior to 52.8, update to version 52.8 or later. For Thunderbird versions prior to 52.8, update to version 52.8 or later.

**Name of the Vulnerable Software and Affected Versions** Thunderbird versions prior to 52.8 Thunderbird ESR versions prior to 52.8 **Description** The issue is related to information disclosure. It allows a remote attacker to gain unauthorized access to protected information through the `src` attribute of remote images or links. This could lead to the leakage of plaintext from decrypted emails. **Recommendations** For Thunderbird versions prior to 52.8, update to version 52.8 or later. For Thunderbird ESR versions prior to 52.8, update to version 52.8 or later. As a temporary workaround, consider restricting access to remote images or links in emails until a patch is available.

**Name of the Vulnerable Software and Affected Versions** Thunderbird ESR versions prior to 52.8 Thunderbird versions prior to 52.8 **Description** The issue is related to the handling of encrypted emails in Thunderbird, where plaintext of decrypted emails can leak when a user submits an embedded form. This is due to a lack of encryption measures for protected data. Exploitation of this issue may allow a remote attacker to gain unauthorized access to protected information. **Recommendations** For Thunderbird ESR versions prior to 52.8, update to version 52.8 or later to resolve the issue. For Thunderbird versions prior to 52.8, update to version 52.8 or later to resolve the issue.

**Name of the Vulnerable Software and Affected Versions** macOS versions prior to 10.13.4 **Description** The issue involves the `Mail` component and allows man-in-the-middle attackers to read S/MIME encrypted message content. This is achieved by sending HTML e-mail that references remote resources but lacks a valid S/MIME signature. **Recommendations** For macOS versions prior to 10.13.4, update to version 10.13.4 or later to resolve the issue.