CVE-2019-12068

Name: CVE-2019-12068
Creator: NVD / NIST
Published: 2019-09-24T20:15:11.747+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 3.8/10EPSS 0.51%

Last modified Jun 17, 2026

CVE-2019-12068 is a low-severity vulnerability rated 3.8/10 on the CVSS scale. In QEMU 1:4.1-1, 1:2.1+dfsg-12+deb8u6, 1:2.8+dfsg-6+deb9u8, 1:3.1+dfsg-8~deb10u1, 1:3.1+dfsg-8+deb10u2, and 1:2.1+dfsg-12+deb8u12 (fixed), when executing script in lsi_execute_script(), the LSI scsi adapter emulator advances 's->dsp' index to read next opcode. This can lead to an infinite loop if the next opcode is empty. EPSS estimates a 0.51% chance of exploitation in the next 30 days.

Description

In QEMU 1:4.1-1, 1:2.1+dfsg-12+deb8u6, 1:2.8+dfsg-6+deb9u8, 1:3.1+dfsg-8~deb10u1, 1:3.1+dfsg-8+deb10u2, and 1:2.1+dfsg-12+deb8u12 (fixed), when executing script in lsi_execute_script(), the LSI scsi adapter emulator advances 's->dsp' index to read next opcode. This can lead to an infinite loop if the next opcode is empty. Move the existing loop exit after 10k iterations so that it covers no-op opcodes as well.

Metrics

CVSS 3.1

3.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L

EPSS Probability

0.51%

39.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-835

Affected Software

Vendor	Product	Versions	Update
Qemu	Qemu	1\	4.1-1
Canonical	Ubuntu Linux	14.04	—
Canonical	Ubuntu Linux	16.04	—
Canonical	Ubuntu Linux	18.04	—
Canonical	Ubuntu Linux	19.04	—
Canonical	Ubuntu Linux	19.10	—
Opensuse	Leap	15.0	—
Opensuse	Leap	15.1	—

References

http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00034.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00038.htmlThird Party Advisory
https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=de594e47659029316bbf9391efb79da0a1a08e08
https://lists.debian.org/debian-lts-announce/2019/09/msg00021.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html
https://lists.gnu.org/archive/html/qemu-devel/2019-08/msg01518.htmlMailing List, Patch, Third Party Advisory
https://security-tracker.debian.org/tracker/CVE-2019-12068Third Party Advisory
https://usn.ubuntu.com/4191-1/Third Party Advisory
https://usn.ubuntu.com/4191-2/Third Party Advisory
https://www.debian.org/security/2020/dsa-4665
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00034.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00038.htmlThird Party Advisory
https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=de594e47659029316bbf9391efb79da0a1a08e08
https://lists.debian.org/debian-lts-announce/2019/09/msg00021.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html
https://lists.gnu.org/archive/html/qemu-devel/2019-08/msg01518.htmlMailing List, Patch, Third Party Advisory
https://security-tracker.debian.org/tracker/CVE-2019-12068Third Party Advisory
https://usn.ubuntu.com/4191-1/Third Party Advisory
https://usn.ubuntu.com/4191-2/Third Party Advisory
https://www.debian.org/security/2020/dsa-4665

Timeline

Published: Sep 24, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-12068?

How severe is CVE-2019-12068?

CVE-2019-12068 has a CVSS score of 3.8/10 (LOW severity). The EPSS model estimates a 0.51% probability of exploitation in the next 30 days.

How do I fix CVE-2019-12068?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-12068?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST