In the GNU C Library (aka glibc or libc6) through 2.28, the getaddrinfo function would successfully parse a string that contained an IPv4 address followed by whitespace and arbitrary characters, which could lead applications to incorrectly assume that it had parsed a valid string, without the possibility of embedded HTTP headers or other potentially dangerous substrings.
| Software | From | Fixed in |
|---|---|---|
| gnu / glibc | - | 2.28.x |
| opensuse / leap | 15.0 | 15.0.x |