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Amazon Linux AMI : qemu-kvm (ALAS-2021-1467)

high Nessus Plugin ID 144998

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Synopsis

The remote Amazon Linux AMI host is missing a security update.

Description

The version of qemu-kvm installed on the remote host is prior to 1.5.3-156.25. It is, therefore, affected by a vulnerability as referenced in the ALAS-2021-1467 advisory.

 A use-after-free issue was found in the SLiRP networking implementation of the QEMU emulator. The issue occurs in ip_reass() routine while reassembling incoming packets, if the first fragment is bigger than the m->m_dat[] buffer. A user or process could use this flaw to crash the QEMU process on the host, resulting in a denial of service. (CVE-2019-15890)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Run 'yum update qemu-kvm' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2021-1467.html

https://access.redhat.com/security/cve/CVE-2019-15890

Plugin Details

Severity: High

ID: 144998

File Name: ala_ALAS-2021-1467.nasl

Version: 1.4

Type: local

Agent: unix

Published: 1/14/2021

Updated: 12/11/2024

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2019-15890

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:qemu-kvm, p-cpe:/a:amazon:linux:qemu-img, p-cpe:/a:amazon:linux:qemu-kvm-common, p-cpe:/a:amazon:linux:qemu-kvm-debuginfo, cpe:/o:amazon:linux, p-cpe:/a:amazon:linux:qemu-kvm-tools

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 1/12/2021

Vulnerability Publication Date: 9/6/2019

Reference Information

CVE: CVE-2019-15890

ALAS: 2021-1467