CVE-2020-1917
10.03.2021, 16:15
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 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 < 4.80.2 | |
| hhvm | 4.81.0 ≤ 𝑥 < 4.93.2 | |
| 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-787 - Out-of-bounds WriteThe software writes data past the end, or before the beginning, of the intended buffer.