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Google observed some undocumented (to the best of their knowledge) behavior of the indirect branch predictors, specifically relative to _ret_ instructions. The research they conducted appears to show that this behavior does not seem to create exploitable security vulnerabilities in the software they have tested. They would like to better understand the impact and implications for different software stacks, thus they welcome feedback or further research. Included is proof of concept code.

This is a path traversal vulnerability that impacts the CreateIndexHandler and DeleteIndexHandler found within Bleve search library. These vulnerabilities enable the attacker to delete any directory owned by the user recursively, and create a new directory in any location which the server has write permissions to. This is Google's proof of concept exploit.

The Azure Storage Encryption library in Java and other languages is vulnerable to a CBC Padding Oracle attack, similar to CVE-2020-8911. The library is not vulnerable to the equivalent of CVE-2020-8912, but only because it currently only supports AES-CBC as encryption mode. This is Google's proof of concept exploit.

libresolv's DNS packet handler suffered from heap out-of-bounds write to infinite-loop denial of service vulnerabilities. This is a proof of concept exploit from Google.

Log4j 2.15.0 was released to address the widely reported JNDI Remote Code Execution (RCE) (CVE-2021-44228) vulnerability in Log4j. Shortly thereafter, 2.16.0 was released to address a Denial of Service (DoS) vulnerability (CVE-2021-45046). When examining the 2.15.0 release, Google security engineers found several issues with the Log4j 2.15.0 patch that showed that the severity of the issue addressed in 2.16 was in fact worse than initially understood. This is Google's proof of concept exploit.

On Surface Pro 3 with the SHA1 and SHA256 PCRs enabled on the TPM, BIOS version 3.11.2550 and earlier, only the SHA1 PCRs are extended by the firmware. This means that an adversary can boot into an unmeasured OS and extend the PCRs with false measurements to obtain false attestations. This is a proof of concept exploit from Google.

### Impact The Shopware application API contains a search functionality which enables users to search through information stored within their Shopware instance. The searches performed by this function can be aggregated using the parameters in the “aggregations” object. The ‘name’ field in this “aggregations” object is vulnerable SQL-injection and can be exploited using SQL parameters. ### Patches Update to Shopware 6.6.5.1 or 6.5.8.13 ### Workarounds For older versions of 6.1, 6.2, 6.3 and 6.4 corresponding security measures are also available via a plugin. For the full range of functions, we recommend updating to the latest Shopware version. ### Credit [LogicalTrust](https://logicaltrust.net)

A heap out-of-bounds write affecting Linux since v2.6.19-rc1 was discovered in net/netfilter/x_tables.c. This is the proof of concept exploit produced by Google.

The Smishing Triad network sends up to 100,000 scam texts per day globally. One of those messages went to Grant Smith, who infiltrated their systems and exposed them to US authorities.

### Impact The `context` variable is injected into almost any Twig Template and allows to access to current language, currency information. The context object allows also to switch for a short time the scope of the Context as a helper with a callable function. Example call from PHP: ```php $context->scope(Context::SYSTEM_SCOPE, static function (Context $context) use ($mediaService, $media, &$fileBlob): void { $fileBlob = $mediaService->loadFile($media->getId(), $context); }); ``` This function can be called also from Twig and as the second parameter allows any callable, it's possible to call from Twig any statically callable PHP function/method. It's not possible as customer to provide any Twig code, the attacker would require access to Administration to exploit it using Mail templates or using App Scripts. ### Patches Update to Shopware 6.6.5.1 or 6.5.8.13 ### Workarounds For older versions of 6.1, 6.2, 6.3 and 6.4 corresponding security measures are also available via a pl...