Spoofing attack in Glibc - CVE-2017-12132
Published: April 27, 2018
Vulnerability identifier: #VU12270
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2017-12132
CWE-ID: CWE-451
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: GNU
Affected software:
Glibc
Glibc
Detailed vulnerability description
The vulnerability allows a remote attacker to perform spoofing attack and write arbitrary files on the target system.
The weakness exists in the DNS stub resolver due to soliciting large UDP responses from name servers, potentially simplifying off-path DNS spoofing attacks due to IP fragmentation, when EDNS support is enabled. A remote attacker can write arbitrary files.
The weakness exists in the DNS stub resolver due to soliciting large UDP responses from name servers, potentially simplifying off-path DNS spoofing attacks due to IP fragmentation, when EDNS support is enabled. A remote attacker can write arbitrary files.
How to mitigate CVE-2017-12132
Update to version 2.26.