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.
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00082.html
http://www.securityfocus.com/bid/106672
https://access.redhat.com/errata/RHSA-2019:2118
Source: MITRE
Published: 2019-01-21
Updated: 2019-08-06
Type: CWE-20
Base Score: 4.6
Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 3.9
Severity: MEDIUM
Base Score: 5.3
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Impact Score: 3.4
Exploitability Score: 1.8
Severity: MEDIUM