HHVM stands for HipHop virtual machine is a server designed for executing and running programs written and coded in PHP and other hack programming language. HHVM is a highly efficient open-source virtual machine developed by Facebook. HHVM uses just in time approach to reach superior and high performance while maintaining development flexibility that the PHP languages provide. All those using HHVM as servers like Wikipedia and box and also corporations to upload their images on the server may face the effect of the threat. The vulnerability that lies in the HHVM is possibly due to the memory overflow when a specially constructed invalid JPEG image is passed a flaw that allows an outside program to read data from outside the bounds of memory.

Image source: en.secnews.gr

CVE-2019-11925: Hackers access to memory through an invalid JPEG input when insufficient boundary check occurs while processing the JPEG APP12 block marker in GD extension.

CVE-2019-11926: Hackers access to memory through an invalid JPEG input when insufficient boundary check occurs while processing the JPEG APP12 block marker in GD extension.

HHVM uses just in time approach to reach superior and high performance while maintaining development flexibility that the PHP languages provide. The version in between HHVM 4.0.0 and 4.8.3 and version of HHVM 4.9.0 to 4.15.2 and HHVM versions 4.16.0 to 4.16.3, 4.17.0 to 4.17.2, 4.18.0 to 4.18.1, 4.19.0, 4.20.0 to 4.20.1 are affected by the vulnerability. If any website or server is using HHVM immediate update is a must to avoid hackers to gain access to the information on the personal computer like details that are crucial and important. The above-mentioned vulnerabilities CVE-2019-11925 and CVE-2019-11926 also affect all version of HHVM versions including the one listed above also are dangerous to website and servers which have a prior version of 3.30.9.

Image source: www.zapbuild.com

Source: The Hacker News


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DEMARCO BERRY
Demarco Berry is a senior writer for Dark Web Link, covering security, privacy, information freedom, and hacker culture. Before coming to Dark Web Link, he worked as a senior writer for The New York magazine. Demarco has received his bachelor’s degree from Haverford College and a master’s degree from New York University’s business and economic reporting program.

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