SB2017020202 - Multiple vulnerabilities in libevent
Published: February 2, 2017
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 secuirty vulnerabilities.
1) Out-of-bounds read (CVE-ID: CVE-2016-10197)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to boundary error in search_make_new() 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.
2) Stack-based buffer overflow (CVE-ID: CVE-2016-10196)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to boundary error in evutil_parse_sockaddr_port() function in evutil.c within libevent library before 2.1.6-beta. A remote attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
3) Out-of-bounds read (CVE-ID: CVE-2016-10195)
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.
Remediation
Install update from vendor's website.