#VU17105 Input validation error in Glibc - CVE-2016-10739
Published: January 22, 2019
Vulnerability identifier: #VU17105
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2016-10739
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Glibc
Glibc
Software vendor:
GNU
GNU
Description
The vulnerability allows a remote attacker to bypass certain security restrictions.
The vulnerability exists due to the getaddrinfo() function accepts an IPv4 address followed by whitespace and arbitrary characters and treats his input as a correct IPv4 address. Software that accepts input from the getaddrinfo() function may incorrectly assume that the function return IPv4 address only. As a result, a remote attacker can inject arbitrary data into the IPv4 address and change application's behavior that relies on getaddrinfo() output (e.g., inject HTTP headers or other potentially dangerous strings).
Remediation
Install updates from vendor's repository. This vulnerability will be fixed in the upcoming glibc release 2.29.