Stack-based buffer overflow - CVE-2017-12865
Published: December 2, 2018 / Updated: December 3, 2018
Vulnerability identifier: #VU16210
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-12865
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause DoS condition or execute arbitrary code on the target system.
The vulnerability exists due to stack-based buffer overflow in "dnsproxy.c". A remote unauthenticated attacker can supply a specially crafted response query string passed to the "name" variable, trigger memory corruption and cause a denial of service (crash) or execute arbitrary code with elevated privileges.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Gentoo Linux
How to mitigate CVE-2017-12865
Install update from vendor's website.