Happy Friday fellow Linux geeks! This week, important updates have been issued for Firefox, GnuTLS and libphp-adodb. Read on to learn about these vulnerabilities and how to secure your system against them. 

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Yours in Open Source,

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Firefox

The Discovery 

Many critical security vulnerabilities have been discovered in Mozilla Firefox including an expat Integer overflow in storeRawNames() (CVE-2022-25315). It was also found that malformed 2- and 3-byte UTF-8 sequences and namespace-separator characters in "xmlns[:prefix]" attribute values in expat can lead to arbitrary code execution (CVE-2022-25235 and (CVE-2022-25236).

Firefox

The Impact

Exploitation of these flaws could result in arbitrary code execution, spoofing attacks and sandbox bypass.

The Fix

A  Firefox security and bug fix update mitigates these serious issues. Update now!

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GnuTLS

The Discovery 

A null pointer dereference in MD_UPDATE has been found in the GnuTLS free software implementation of the TLS, SSL and DTLS protocols (CVE-2021-4209).
GnuTLS

The Impact

This vulnerability can be exploited by an attacker to maliciously crash a process to cause a denial of service (DoS) attack.

The Fix

A GnuTLS security update fixes this dangerous bug. Update promptly to protect the security, integrity and availability of your systems.

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libphp-adodb

The Discovery

It was discovered that libphp-adodb, a PHP database abstraction layer library, allows for the injection of values into a PostgreSQL connection string (CVE-2021-3850).

The ImpactPHP

Depending on how the library is used, this flaw can result in authentication bypass, reveal a server IP address or have other unspecified impact.

The Fix

A security update is available for libphp-adodb that mitigates this issue. We recommend updating as soon as possible to protect your security and privacy.

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