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Test ID:1.3.6.1.4.1.25623.1.0.844441
Category:Ubuntu Local Security Checks
Title:Ubuntu: Security Advisory for qemu (USN-4372-1)
Summary:The remote host is missing an update for the 'qemu'; package(s) announced via the USN-4372-1 advisory.
Description:Summary:
The remote host is missing an update for the 'qemu'
package(s) announced via the USN-4372-1 advisory.

Vulnerability Insight:
It was discovered that QEMU incorrectly handled bochs-display devices. A
local attacker in a guest could use this to cause a denial of service or
possibly execute arbitrary code in the host. This issue only affected
Ubuntu 19.10. (CVE-2019-15034)

It was discovered that QEMU incorrectly handled memory during certain VNC
operations. A remote attacker could possibly use this issue to cause QEMU
to consume resources, resulting in a denial of service. This issue only
affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 19.10.
(CVE-2019-20382)

It was discovered that QEMU incorrectly generated QEMU Pointer
Authentication signatures on ARM. A local attacker could possibly use this
issue to bypass PAuth. This issue only affected Ubuntu 19.10.
(CVE-2020-10702)

Ziming Zhang discovered that QEMU incorrectly handled ATI VGA emulation. A
local attacker in a guest could use this issue to cause QEMU to crash,
resulting in a denial of service. This issue only affected Ubuntu 20.04
LTS. (CVE-2020-11869)

Aviv Sasson discovered that QEMU incorrectly handled Slirp networking. A
remote attacker could use this issue to cause QEMU to crash, resulting in a
denial of service, or possibly execute arbitrary code. This issue only
affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 19.10.
(CVE-2020-1983)

Affected Software/OS:
'qemu' package(s) on Ubuntu 20.04 LTS, Ubuntu 19.10, Ubuntu 18.04 LTS, Ubuntu 16.04 LTS.

Solution:
Please install the updated package(s).

CVSS Score:
4.4

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

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2020-1983
Debian Security Information: DSA-4665 (Google Search)
https://www.debian.org/security/2020/dsa-4665
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NKT2MTSINE4NUPG5L6BYH6N23NBNITOL/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HWFD4MWV3YWIHVHSA2F7FKOLJFL4PHOX/
https://gitlab.freedesktop.org/slirp/libslirp/-/commit/9ac0371bb8c0a40f5d9f82a1c25129660e81df04
https://gitlab.freedesktop.org/slirp/libslirp/-/issues/20
https://lists.debian.org/debian-lts-announce/2020/06/msg00032.html
https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html
SuSE Security Announcement: openSUSE-SU-2020:0636 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00022.html
SuSE Security Announcement: openSUSE-SU-2020:0756 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00001.html
https://usn.ubuntu.com/4372-1/
CopyrightCopyright (C) 2020 Greenbone Networks GmbH

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