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Tails OS Users Advised Not to Use Tor Browser Until Critical Firefox Bugs are Patched
The maintainers of the Tails project have issued a warning that the Tor Browser that’s bundled with the operating system is unsafe to use for accessing or entering sensitive information. “We recommend that you stop using Tails until the release of 5.1 (May 31) if you use Tor Browser for sensitive information (passwords, private messages, personal information, etc.),” the project said in an
The maintainers of the Tails project have issued a warning that the Tor Browser that’s bundled with the operating system is unsafe to use for accessing or entering sensitive information.
“We recommend that you stop using Tails until the release of 5.1 (May 31) if you use Tor Browser for sensitive information (passwords, private messages, personal information, etc.),” the project said in an advisory issued this week.
Tails, short for The Amnesic Incognito Live System, is a security-oriented Debian-based Linux distribution aimed at preserving privacy and anonymity by connecting to the internet through the Tor network.
The alert comes as Mozilla on May 20, 2022 rolled out fixes for two critical zero-day flaws in its Firefox browser, a modified version of which acts as the foundation of the Tor Browser.
Tracked as CVE-2022-1802 and CVE-2022-1529, the two vulnerabilities are what’s referred to as prototype pollution that could be weaponized to gain JavaScript code execution on devices running vulnerable versions of Firefox, Firefox ESR, Firefox for Android, and Thunderbird.
“For example, after you visit a malicious website, an attacker controlling this website might access the password or other sensitive information that you send to other websites afterwards during the same Tails session,” the Tails advisory reads.
The bugs were demonstrated by Manfred Paul at the 15th edition of the Pwn2Own hacking contest held at Vancouver last week, for which the researcher was awarded $100,000.
However, Tor Browsers that have the “Safest” security level enabled as well as the Thunderbird email client in the operating system are immune to the flaws as JavaScript is disabled in both cases.
Also, the weaknesses don’t break the anonymity and encryption protections baked into Tor Browser, meaning that Tails users who don’t handle sensitive information can continue to use the web browser.
“This vulnerability will be fixed in Tails 5.1 (May 31), but our team doesn’t have the capacity to publish an emergency release earlier,” the developers said.
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Red Hat Security Advisory 2022-4769-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 91.9.1.
Red Hat Security Advisory 2022-4768-01 - Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 91.9.1 ESR.
Red Hat Security Advisory 2022-4766-01 - Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 91.9.1 ESR.
An update for thunderbird is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-1529: Mozilla: Untrusted input used in JavaScript object indexing, leading to prototype pollution * CVE-2022-1802: Mozilla: Prototype pollution in Top-Level Await implementation
An update for firefox is now available for Red Hat Enterprise Linux 8.2 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-1529: Mozilla: Untrusted input used in JavaScript object indexing, leading to prototype pollution * CVE-2022-1802: Mozilla: Prototype pollution in Top-Level Await implementation
An update for thunderbird is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-1529: Mozilla: Untrusted input used in JavaScript object indexing, leading to prototype pollution * CVE-2022-1802: Mozilla: Prototype pollution in Top-Level Await implementation
An update for thunderbird is now available for Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-1529: Mozilla: Untrusted input used in JavaScript object indexing, leading to prototype pollution * CVE-2022-1802: Mozilla: Prototype pollution in Top-Level Await implementation
Red Hat Security Advisory 2022-4767-01 - Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 91.9.1 ESR.
Red Hat Security Advisory 2022-4774-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 91.9.1.
Critical updates have been released for both Firefox and Thunderbird. Apply now if you haven't already—we explain how. The post Firefox, Thunderbird, receive patches for critical security issues appeared first on Malwarebytes Labs.
An update for thunderbird is now available for Red Hat Enterprise Linux 8.4 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-1529: Mozilla: Untrusted input used in JavaScript object indexing, leading to prototype pollution * CVE-2022-1802: Mozilla: Prototype pollution in Top-Level Await implementation
An update for thunderbird is now available for Red Hat Enterprise Linux 8.2 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-1529: Mozilla: Untrusted input used in JavaScript object indexing, leading to prototype pollution * CVE-2022-1802: Mozilla: Prototype pollution in Top-Level Await implementation
Red Hat Security Advisory 2022-4729-01 - Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 91.9.1 ESR.
Red Hat Security Advisory 2022-4729-01 - Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 91.9.1 ESR.
Red Hat Security Advisory 2022-4730-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 91.9.1.
Red Hat Security Advisory 2022-4730-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 91.9.1.
Critical vulnerability has been fixed upstream, but Tails dev team ‘doesn’t have the capacity to publish an emergency release earlier’
Critical vulnerability has been fixed upstream, but Tails dev team ‘doesn’t have the capacity to publish an emergency release earlier’
An update for firefox is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-1529: Mozilla: Untrusted input used in JavaScript object indexing, leading to prototype pollution * CVE-2022-1802: Mozilla: Prototype pollution in Top-Level Await implementation
An update for firefox is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-1529: Mozilla: Untrusted input used in JavaScript object indexing, leading to prototype pollution * CVE-2022-1802: Mozilla: Prototype pollution in Top-Level Await implementation
Ubuntu Security Notice 5435-1 - Multiple security issues were discovered in Thunderbird. If a user were tricked into opening a specially crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of service, bypass permission prompts, obtain sensitive information, bypass security restrictions, cause user confusion, or execute arbitrary code. It was discovered that Thunderbird would show the wrong security status after viewing an attached message that is signed or encrypted. An attacker could potentially exploit this by tricking the user into trusting the authenticity of a message.
Ubuntu Security Notice 5435-1 - Multiple security issues were discovered in Thunderbird. If a user were tricked into opening a specially crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of service, bypass permission prompts, obtain sensitive information, bypass security restrictions, cause user confusion, or execute arbitrary code. It was discovered that Thunderbird would show the wrong security status after viewing an attached message that is signed or encrypted. An attacker could potentially exploit this by tricking the user into trusting the authenticity of a message.
Ubuntu Security Notice 5434-1 - Multiple security issues were discovered in Thunderbird. If a user were tricked into opening a specially crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of service, bypass permission prompts, obtain sensitive information, bypass security restrictions, cause user confusion, or execute arbitrary code. It was discovered that Thunderbird would show the wrong security status after viewing an attached message that is signed or encrypted. An attacker could potentially exploit this by tricking the user into trusting the authenticity of a message.
Ubuntu Security Notice 5434-1 - Multiple security issues were discovered in Thunderbird. If a user were tricked into opening a specially crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of service, bypass permission prompts, obtain sensitive information, bypass security restrictions, cause user confusion, or execute arbitrary code. It was discovered that Thunderbird would show the wrong security status after viewing an attached message that is signed or encrypted. An attacker could potentially exploit this by tricking the user into trusting the authenticity of a message.
Ubuntu Security Notice 5434-1 - It was discovered that the methods of an Array object could be corrupted as a result of prototype pollution by sending a message to the parent process. If a user were tricked into opening a specially crafted website, an attacker could exploit this to execute JavaScript in a privileged context.
Ubuntu Security Notice 5434-1 - It was discovered that the methods of an Array object could be corrupted as a result of prototype pollution by sending a message to the parent process. If a user were tricked into opening a specially crafted website, an attacker could exploit this to execute JavaScript in a privileged context.
An update for thunderbird is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-1529: Mozilla: Untrusted input used in JavaScript object indexing, leading to prototype pollution * CVE-2022-1802: Mozilla: Prototype pollution in Top-Level Await implementation
An update for thunderbird is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-1529: Mozilla: Untrusted input used in JavaScript object indexing, leading to prototype pollution * CVE-2022-1802: Mozilla: Prototype pollution in Top-Level Await implementation