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9.8
CVSSv3
CVE-2019-11930
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 before 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...
Facebook Hhvm
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
9.8
CVSSv3
CVE-2019-11935
Insufficient boundary checks when processing a string in mb_ereg_replace allows access to out-of-bounds memory. This issue affects HHVM versions before 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,...
Facebook Hhvm
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
9.8
CVSSv3
CVE-2019-11936
Various APC functions accept keys containing null bytes as input, leading to premature truncation of input. This issue affects HHVM versions before 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, 4.2...
Facebook Hhvm
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
9.8
CVSSv3
CVE-2020-1916
An incorrect size calculation in ldap_escape may lead to an integer overflow when overly long input is passed in, resulting in an out-of-bounds write. This issue affects HHVM before 4.56.2, all versions between 4.57.0 and 4.78.0, 4.79.0, 4.80.0, 4.81.0, 4.82.0, 4.83.0.
Facebook Hhvm
Facebook Hhvm 4.79.0
Facebook Hhvm 4.80.0
Facebook Hhvm 4.81.0
Facebook Hhvm 4.82.0
Facebook Hhvm 4.83.0
7.5
CVSSv3
CVE-2020-1919
Incorrect bounds calculations in substr_compare could lead to an out-of-bounds read when the second string argument passed in is longer than the first. This issue affects HHVM versions before 4.56.3, all versions between 4.57.0 and 4.80.1, all versions between 4.81.0 and 4.93.1, ...
Facebook Hhvm
Facebook Hhvm 4.94.0
Facebook Hhvm 4.95.0
Facebook Hhvm 4.96.0
Facebook Hhvm 4.97.0
Facebook Hhvm 4.98.0
9.8
CVSSv3
CVE-2021-24025
Due to incorrect string size calculations inside the preg_quote function, a large input string passed to the function can trigger an integer overflow leading to a heap overflow. This issue affects HHVM versions before 4.56.3, all versions between 4.57.0 and 4.80.1, all versions b...
Facebook Hhvm
Facebook Hhvm 4.94.0
Facebook Hhvm 4.95.0
Facebook Hhvm 4.96.0
Facebook Hhvm 4.97.0
Facebook Hhvm 4.98.0
7.5
CVSSv3
CVE-2020-1918
In-memory file operations (ie: using fopen on a data URI) did not properly restrict negative seeking, allowing for the reading of memory prior to the in-memory buffer. This issue affects HHVM versions before 4.56.3, all versions between 4.57.0 and 4.80.1, all versions between 4.8...
Facebook Hhvm
Facebook Hhvm 4.94.0
Facebook Hhvm 4.95.0
Facebook Hhvm 4.96.0
Facebook Hhvm 4.97.0
Facebook Hhvm 4.98.0
7.5
CVSSv3
CVE-2020-1921
In the crypt function, we attempt to null terminate a buffer using the size of the input salt without validating that the offset is within the buffer. This issue affects HHVM versions before 4.56.3, all versions between 4.57.0 and 4.80.1, all versions between 4.81.0 and 4.93.1, a...
Facebook Hhvm
Facebook Hhvm 4.94.0
Facebook Hhvm 4.95.0
Facebook Hhvm 4.96.0
Facebook Hhvm 4.97.0
Facebook Hhvm 4.98.0
2 Github repositories
8.1
CVSSv3
CVE-2019-3556
HHVM supports the use of an "admin" server which accepts administrative requests over HTTP. One of those request handlers, dump-pcre-cache, can be used to output cached regular expressions from the current execution context into a file. The handler takes a parameter whi...
Facebook Hhvm
Facebook Hhvm 4.79.0
Facebook Hhvm 4.80.0
Facebook Hhvm 4.81.0
Facebook Hhvm 4.82.0
Facebook Hhvm 4.83.0
9.8
CVSSv3
CVE-2020-1917
xbuf_format_converter, used as part of exif_read_data, was appending a terminating null character to the generated string, but was not using its standard append char function. As a result, if the buffer was full, it would result in an out-of-bounds write. This issue affects HHVM ...
Facebook Hhvm
Facebook Hhvm 4.94.0
Facebook Hhvm 4.95.0
Facebook Hhvm 4.96.0
Facebook Hhvm 4.97.0
Facebook Hhvm 4.98.0
CVSSv3
CVSSv2
CVSSv3
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