SB2018102607 - OpenSUSE Linux update for ntp

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Stack-based buffer overflow (CVE-ID: CVE-2018-12327)

The vulnerability allows a local attacker to gain elevated privileges on the target system.

The vulnerability exists due to stack-based buffer overflow in the Network Time Protocol Query (ntpq) program and Network Time Protocol daemon (ntpd) when handling malicious input. A local attacker can submit a long string argument for an IPv4 or IPv6 command-line parameter, trigger memory corruption and execute arbitrary code with elevated privileges.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

2) Security restrictions bypass (CVE-ID: CVE-2018-7170)

The vulnerability allows a remote authenticated attacker to bypass security restrictions on the target system.

The weakness exists due to insufficient security restrictions. A remote attacker can create multiple crafted ephemeral associations to bypass security restrictions and modify the clock.

Remediation

Install update from vendor's website.

References

• https://lists.opensuse.org/opensuse-security-announce/2018-10/msg00069.html