SB2019021811 - OpenSUSE Linux update for LibVNCServer

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Heap out-of-bounds write (CVE-ID: CVE-2018-20748)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error. A remote attacker can trigger out-of-bounds write in VNC client code and execute arbitrary code on the target system.

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

2) Heap out-of-bounds write (CVE-ID: CVE-2018-20749)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error. A remote attacker can trigger out-of-bounds write in rfbserver.c and execute arbitrary code on the target system.

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

3) Heap out-of-bounds write (CVE-ID: CVE-2018-20750)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error. A remote attacker can trigger out-of-bounds write in rfbserver.c and execute arbitrary code on the target system.

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

Remediation

Install update from vendor's website.

References

• https://lists.opensuse.org/opensuse-security-announce/2019-02/msg00033.html