Out-of-bounds read in libevent - CVE-2017-5437,CVE-2016-10195
Published: April 19, 2017
Vulnerability identifier: #VU6350
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2017-5437,CVE-2016-10195
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: libevent
Affected software:
libevent
libevent
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to boundary error in name_parse() function in evdns.c within libevent library before 2.1.6-beta. A remote attacker can trigger out-of-bounds read and gain access to sensitive system memory.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
How to mitigate CVE-2017-5437,CVE-2016-10195
Update to version 2.1.6-beta or later.