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Debian DSA-4760-1 : qemu - security update

medium Nessus Plugin ID 140301

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Synopsis

The remote Debian host is missing a security-related update.

Description

Multiple security issues were discovered in QEMU, a fast processor emulator :

 - CVE-2020-12829 An integer overflow in the sm501 display device may result in denial of service.

 - CVE-2020-14364 An out-of-bounds write in the USB emulation code may result in guest-to-host code execution.

 - CVE-2020-15863 A buffer overflow in the XGMAC network device may result in denial of service or the execution of arbitrary code.

 - CVE-2020-16092 A triggerable assert in the e1000e and vmxnet3 devices may result in denial of service.

Solution

Upgrade the qemu packages.

For the stable distribution (buster), these problems have been fixed in version 1:3.1+dfsg-8+deb10u8.

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=961451

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=968947

https://security-tracker.debian.org/tracker/CVE-2020-12829

https://security-tracker.debian.org/tracker/CVE-2020-14364

https://security-tracker.debian.org/tracker/CVE-2020-15863

https://security-tracker.debian.org/tracker/CVE-2020-16092

https://security-tracker.debian.org/tracker/source-package/qemu

https://packages.debian.org/source/buster/qemu

https://www.debian.org/security/2020/dsa-4760

Plugin Details

Severity: Medium

ID: 140301

File Name: debian_DSA-4760.nasl

Version: 1.7

Type: local

Agent: unix

Published: 9/8/2020

Updated: 1/11/2021

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

CVSS v2

Risk Factor: Medium

Base Score: 4.4

Temporal Score: 3.3

Vector: CVSS2#AV:L/AC:M/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2020-15863

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:qemu, cpe:/o:debian:debian_linux:10.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 9/6/2020

Vulnerability Publication Date: 7/28/2020

Reference Information

CVE: CVE-2020-12829, CVE-2020-14364, CVE-2020-15863, CVE-2020-16092

DSA: 4760

IAVB: 2020-B-0063-S