CVE-2019-11930
First published: Wed Dec 04 2019(Updated: )
An invalid free in mb_detect_order can cause the application to crash or potentially result in remote code execution. This issue affects HHVM versions prior to 3.30.12, all versions between 4.0.0 and 4.8.5, all versions between 4.9.0 and 4.23.1, as well as 4.24.0, 4.25.0, 4.26.0, 4.27.0, 4.28.0, and 4.28.1.
Credit: cve-assign@fb.com cve-assign@fb.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Facebook HHVM | <3.30.12 | |
| Facebook HHVM | >=4.0.0<=4.8.5 | |
| Facebook HHVM | >=4.9.0<=4.23.1 | |
| Facebook HHVM | =4.24.0 | |
| Facebook HHVM | =4.25.0 | |
| Facebook HHVM | =4.26.0 | |
| Facebook HHVM | =4.27.0 | |
| Facebook HHVM | =4.28.0 | |
| Facebook HHVM | =4.28.1 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2019-11930?
The severity of CVE-2019-11930 is critical with a score of 9.8 out of 10.
Which versions of HHVM are affected by CVE-2019-11930?
HHVM versions prior to 3.30.12, all versions between 4.0.0 and 4.8.5, all versions between 4.9.0 and 4.23.1, as well as versions 4.24.0, 4.25.0, 4.26.0, 4.27.0, 4.28.0, and 4.28.1 are affected by CVE-2019-11930.
What is the vulnerability description of CVE-2019-11930?
CVE-2019-11930 is an invalid free vulnerability in mb_detect_order that can cause the application to crash or potentially result in remote code execution.
How can I fix CVE-2019-11930?
To fix CVE-2019-11930, update HHVM to version 3.30.12 or later, 4.8.6 or later, 4.23.2 or later, or 4.29.0 or later.
Where can I find more information about CVE-2019-11930?
More information about CVE-2019-11930 can be found at the following references: [GitHub Commit](https://github.com/facebook/hhvm/commit/524d2e60cfe910406ec6109e4286d7edd545ab36), [HHVM Security Update](https://hhvm.com/blog/2019/10/28/security-update.html), [Facebook Security Advisory](https://www.facebook.com/security/advisories/cve-2019-11930).
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- version/facebook hhvm/4.8.5
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- version/facebook hhvm/4.24.0
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- version/facebook hhvm/4.26.0
- version/facebook hhvm/4.27.0
- version/facebook hhvm/4.28.0
- version/facebook hhvm/4.28.1