USN-4191-1: QEMU vulnerabilities

KENNETH

5년 ago

qemu vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

Ubuntu 19.10
Ubuntu 19.04
Ubuntu 18.04 LTS
Ubuntu 16.04 LTS

Summary

Several security issues were fixed in QEMU.

Software Description

qemu – Machine emulator and virtualizer

Details

It was discovered that the LSI SCSI adapter emulator implementation in QEMU
did not properly validate executed scripts. A local attacker could use this
to cause a denial of service. (CVE-2019-12068)

Sergej Schumilo, Cornelius Aschermann and Simon Wörner discovered that the
qxl paravirtual graphics driver implementation in QEMU contained a null
pointer dereference. A local attacker in a guest could use this to cause a
denial of service. (CVE-2019-12155)

Riccardo Schirone discovered that the QEMU bridge helper did not properly
validate network interface names. A local attacker could possibly use this
to bypass ACL restrictions. (CVE-2019-13164)

It was discovered that a heap-based buffer overflow existed in the SLiRP
networking implementation of QEMU. A local attacker in a guest could use
this to cause a denial of service or possibly execute arbitrary code in the
host. (CVE-2019-14378)

It was discovered that a use-after-free vulnerability existed in the SLiRP
networking implementation of QEMU. A local attacker in a guest could use
this to cause a denial of service. (CVE-2019-15890)