Astra Linux – Vulnerability in Firefox and Thunderbird

A type check was missing when handling fonts in PDF.js, which would allow arbitrary JavaScript execution within the PDF.js context. This vulnerability affects Firefox 126, Firefox ESR 115.11, and Thunderbird 115.11...

Astra Linux – Vulnerability in Thunderbird

Thunderbird allows the use of the Text DirectionOverride Unicode Character in filenames. As a result, an email attachment might be incorrectly displayed as a document file, when in fact it is an executable file. Older versions of Thunderbird will remove this character and display the correct file...

Astra Linux – Vulnerability in Thunderbird

It may be possible for an attacker to create an email message that causes Thunderbird to perform an out-of-bounds write operation, writing one byte when processing the message. This vulnerability affects Thunderbird versions prior to 91.6.1...

Astra Linux – Vulnerability in Thunderbird

When importing a revoked key with “key compromise” as the revocation reason, Thunderbird did not update the existing copy of the key that was not yet revoked. As a result, the existing key remained unrevoked. Revocation statements that used another revocation reason, or those that did not specify...

Astra Linux – Vulnerability in Thunderbird, Firefox

A website could have obscured the full-screen notification by using a URL that was processed by an external program, such as a mailto URL. This could have caused confusion among users and potentially led to spoofing attacks. This vulnerability affects Firefox 116, Firefox ESR 115.2, and Thunderbi...

Astra Linux – Vulnerability in Thunderbird

When an email contains multiple attachments with external links via the X-Mozilla-External-Attachment-URL header, only the last link is displayed when the mouse hovers over any attachment. Although the correct link is used upon clicking, the misleading hover text may lead users to download conten...

Astra Linux – Vulnerability in Firefox and Thunderbird

Race conditions in reference counting code were identified through code analysis. These conditions could lead to exploitable use-after-free vulnerabilities. This vulnerability affects Firefox 116, Firefox ESR 102.14, and Firefox ESR 115.1...

Astra Linux – Vulnerability in Thunderbird

Thunderbird unprotects a secret OpenPGP key before using it for decryption, signing, or key import tasks. If the task fails, the secret key may remain in memory in an unprotected state. This vulnerability affects Thunderbird versions earlier than 78.8.1...

Astra Linux – Vulnerability in Thunderbird

To protect ICU from exploitation, the behavior for out-of-memory conditions has been changed to a crash instead of attempting to continue. This vulnerability affects Firefox ESR 115.9 and Thunderbird 115.9...

Astra Linux – Vulnerability in Firefox and Thunderbird

An improper implementation of the new iframe sandbox keyword allow-top-navigation-by-user-activation could allow script execution when the allow-scripts flag is not set. This vulnerability affects Thunderbird version 91.9, Firefox ESR version 91.9, and Firefox version 100...

Astra Linux – Vulnerability in Firefox, Thunderbird

Memory safety bugs exist in Firefox 120, Firefox ESR 115.5, and Thunderbird 115.5. Some of these bugs exhibited signs of memory corruption, and we assume that with sufficient effort, some of these bugs could have been exploited to execute arbitrary code. This vulnerability affects Firefox ESR...

Astra Linux – Vulnerability in Firefox and Thunderbird

A malicious web page could have caused a “use-after-free” issue, leading to memory corruption and potentially exploitable crashes. This bug can only be triggered when accessibility is enabled. This vulnerability affects Thunderbird 78.12, Firefox ESR 78.12, and Firefox 90...

Astra Linux – Vulnerability in Firefox and Thunderbird

The concurrent use of the URL parser with non-UTF-8 data was not thread-safe. This could lead to a “use-after-free” condition, resulting in a potentially exploitable crash. This vulnerability affects Firefox ESR 102.3, Thunderbird 102.3, and Firefox 105...

Astra Linux – Vulnerability in Firefox and Thunderbird

Performing garbage collection on re-declared JavaScript variables led to a “user-after-poison” situation, and potentially caused a exploitable crash. This vulnerability affects Firefox 85, Thunderbird 78.7, and Firefox ESR 78.7...

Astra Linux – Vulnerability in Thunderbird

When receiving an email message signed with OpenPGP/MIME and containing an additional outer MIME message layer, such as a message footer added by a mailing list gateway, Thunderbird only considers the signed inner message for signature validity. This creates the false impression that the addition...

Astra Linux – Vulnerability in Thunderbird

Mozilla developers and community members Julian Hector, Randell Jesup, Gabriele Svelto, Tyson Smith, Christian Holler, and Masayuki Nakano reported memory safety bugs in Firefox 94. Some of these bugs exhibited signs of memory corruption, and we assume that with sufficient effort, some of these...

Astra Linux – Vulnerabilities in Firefox, Thunderbird, and Expat

In Expat also known as libexpat, before version 2.4.3, a left shift of 29 or more in the storeAtts function in xmlparse.c could lead to improper realloc behavior. This could result in allocating too few bytes, or only freeing memory after it was no longer needed...

Astra Linux – Vulnerability in Firefox and Thunderbird

NSSToken objects were accessed via direct pointers, and could be accessed in an unsafe manner on different threads, leading to a use-after-free and potentially exploitable crash. This vulnerability affects Thunderbird 91.8, Firefox 99, and Firefox ESR 91.8...

Astra Linux – Vulnerabilities in Firefox, Thunderbird, NSS

NSS was vulnerable to a timing-side-channel attack during RSA decryption. This attack could potentially allow an attacker to retrieve private data. This vulnerability affects Firefox 124, Firefox ESR 115.9, and Thunderbird 115.9...

Astra Linux – Vulnerability in Firefox

Multiple NSS NIST curves were vulnerable to a side-channel attack known as “Minerva”. This attack could potentially allow an attacker to recover the private key. This vulnerability affects Firefox versions less than 121...