CVE-2019-12068

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.

• CWE-835

• 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

Published

Sep 24, 2019

Last Modified

Jun 17, 2026

Status

Modified

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