CVE-2021-24025
10.03.2021, 16:15
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 prior to 4.56.3, all versions between 4.57.0 and 4.80.1, all versions between 4.81.0 and 4.93.1, and versions 4.94.0, 4.95.0, 4.96.0, 4.97.0, 4.98.0.Enginsight
| Vendor | Product | Version |
|---|---|---|
| hhvm | 𝑥 < 4.56.3 | |
| hhvm | 4.57.0 ≤ 𝑥 ≤ 4.80.1 | |
| hhvm | 4.81.0 ≤ 𝑥 ≤ 4.93.1 | |
| hhvm | 4.94.0 | |
| hhvm | 4.95.0 | |
| hhvm | 4.96.0 | |
| hhvm | 4.97.0 | |
| hhvm | 4.98.0 |
𝑥
= Vulnerable software versions
Ubuntu Releases
Common Weakness Enumeration
- CWE-122 - Heap-based Buffer OverflowA heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
- CWE-190 - Integer Overflow or WraparoundThe software performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control.