Vulnerability in php5 - security update
Summary
DLA-1076-1: php5 - security update. Affects php5 versions < 5.4.45-0+deb7u11. Fixed in 5.4.45-0+deb7u11. How to fix ↓
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Background
The php5 package is a widely used open-source scripting language that is commonly used for web development. It provides a powerful and flexible platform for creating dynamic websites and applications. However, a vulnerability has been discovered in the finish_nested_data function of the var_unserializer.re file in PHP. This vulnerability can be exploited by untrusted data, leading to a buffer over-read. The impact of this vulnerability on the integrity of PHP is currently unspecified.
Vulnerability Detail
The finish_nested_data function in PHP is prone to a buffer over-read while unserializing untrusted data. This means that an attacker can manipulate the data being unserialized in a way that causes PHP to read beyond the boundaries of a buffer, potentially leading to memory corruption or other undefined behavior. The exact impact of this vulnerability is not known, but it could potentially allow an attacker to execute arbitrary code or cause a denial of service.
How To Fix
Minimum fixed version
5.4.45-0+deb7u11
This is the first release that contains the fix.
sudo apt-get install --only-upgrade php5Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no known workaround for this vulnerability at this time.
Conclusion
In conclusion, the php5 package is vulnerable to a buffer over-read vulnerability in the finish_nested_data function. This vulnerability can be exploited by untrusted data and may have serious consequences for the integrity of PHP. It is highly recommended to upgrade to the latest version of the php5 package to mitigate this vulnerability. For further support and assistance with vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for php5 →
FAQ
The exact impact of this vulnerability is not known, but it could potentially allow an attacker to execute arbitrary code or cause a denial of service.
You can use the Vulert Playground at https://vulert.com/scanner to check if your system is affected by this vulnerability. Simply upload your package-lock.json file and Vulert will analyze it for any open-source vulnerabilities, including this one.
Yes, a patch is available for this vulnerability. It is recommended to upgrade the php5 package to version 5.4.45-0+deb7u11 or later.
There is currently no known workaround for this vulnerability.
You can find more information about this vulnerability in the Debian LTS security advisories. Detailed instructions on how to apply the updates can also be found at https://wiki.debian.org/LTS.
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