SB2019042407 - Gentoo update for QEMU

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Buffer overflow (CVE-ID: CVE-2018-20815)

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

The vulnerability exists due to a boundary error in the deprecated "load_image" function, as defined in the "device_tree.c" file. A remote attacker can submit a large image file to the affected system, trigger memory corruption and execute arbitrary code on the target system.

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

2) Memory leak (CVE-ID: CVE-2019-9824)

The vulnerability allows a local user to gain access to sensitive information on the system.

The vulnerability exists due memory leak within the SLiRP networking implementation. A local user can read uninitialised stack memory contents.

Remediation

Install update from vendor's website.

References

• https://security.gentoo.org/
• https://security.gentoo.org/glsa/201904-25