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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2024.0126 USN-6567-1: QEMU vulnerabilities 9 January 2024 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: QEMU Publisher: Ubuntu Operating System: Ubuntu Resolution: Patch/Upgrade CVE Names: CVE-2023-42467 CVE-2023-40360 CVE-2023-5088 CVE-2023-4135 CVE-2023-3354 CVE-2023-3301 CVE-2023-3255 CVE-2023-3180 CVE-2023-2861 CVE-2023-1544 CVE-2021-3638 CVE-2021-3611 CVE-2020-24165 CVE-2020-14394 Original Bulletin: https://ubuntu.com/security/notices/USN-6567-1 Comment: CVSS (Max): 8.8 CVE-2020-24165 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H) CVSS Source: Ubuntu Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - --------------------------BEGIN INCLUDED TEXT-------------------- USN-6567-1: QEMU vulnerabilities 8 January 2024 Several security issues were fixed in QEMU. Releases o Ubuntu 23.10 o Ubuntu 23.04 o Ubuntu 22.04 LTS o Ubuntu 20.04 LTS Packages o qemu - Machine emulator and virtualizer Details Gaoning Pan and Xingwei Li discovered that QEMU incorrectly handled the USB xHCI controller device. A privileged guest attacker could possibly use this issue to cause QEMU to crash, leading to a denial of service. This issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. ( CVE-2020-14394 ) It was discovered that QEMU incorrectly handled the TCG Accelerator. A local attacker could use this issue to cause QEMU to crash, leading to a denial of service, or possibly execute arbitrary code and esclate privileges. This issue only affected Ubuntu 20.04 LTS. ( CVE-2020-24165 ) It was discovered that QEMU incorrectly handled the Intel HD audio device. A malicious guest attacker could use this issue to cause QEMU to crash, leading to a denial of service. This issue only affected Ubuntu 22.04 LTS. ( CVE-2021-3611 ) It was discovered that QEMU incorrectly handled the ATI VGA device. A malicious guest attacker could use this issue to cause QEMU to crash, leading to a denial of service. This issue only affected Ubuntu 20.04 LTS. ( CVE-2021-3638 ) It was discovered that QEMU incorrectly handled the VMWare paravirtual RDMA device. A malicious guest attacker could use this issue to cause QEMU to crash, leading to a denial of service. ( CVE-2023-1544 ) It was discovered that QEMU incorrectly handled the 9p passthrough filesystem. A malicious guest attacker could possibly use this issue to open special files and escape the exported 9p tree. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, and Ubuntu 23.04. ( CVE-2023-2861 ) It was discovered that QEMU incorrectly handled the virtual crypto device. A malicious guest attacker could use this issue to cause QEMU to crash, leading to a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, and Ubuntu 23.04. ( CVE-2023-3180 ) It was discovered that QEMU incorrectly handled the built-in VNC server. A remote authenticated attacker could possibly use this issue to cause QEMU to stop responding, resulting in a denial of service. This issue only affected Ubuntu 22.04 LTS and Ubuntu 23.04. ( CVE-2023-3255 ) It was discovered that QEMU incorrectly handled net device hot-unplugging. A malicious guest attacker could use this issue to cause QEMU to crash, leading to a denial of service. This issue only affected Ubuntu 22.04 LTS and Ubuntu 23.04. ( CVE-2023-3301 ) It was discovered that QEMU incorrectly handled the built-in VNC server. A remote attacker could possibly use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, and Ubuntu 23.04. ( CVE-2023-3354 ) It was discovered that QEMU incorrectly handled NVME devices. A malicious guest attacker could use this issue to cause QEMU to crash, leading to a denial of service. This issue only affected Ubuntu 23.10. ( CVE-2023-40360 ) It was discovered that QEMU incorrectly handled NVME devices. A malicious guest attacker could use this issue to cause QEMU to crash, leading to a denial of service, or possibly obtain sensitive information. This issue only affected Ubuntu 23.10. ( CVE-2023-4135 ) It was discovered that QEMU incorrectly handled SCSI devices. A malicious guest attacker could use this issue to cause QEMU to crash, leading to a denial of service. This issue only affected Ubuntu 23.04 and Ubuntu 23.10. ( CVE-2023-42467 ) It was discovered that QEMU incorrectly handled certain disk offsets. A malicious guest attacker could possibly use this issue to gain control of the host in certain nested virtualization scenarios. ( CVE-2023-5088 ) Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 23.10 o qemu-system - 1:8.0.4+dfsg-1ubuntu3.23.10.2 o qemu-system-arm - 1:8.0.4+dfsg-1ubuntu3.23.10.2 o qemu-system-mips - 1:8.0.4+dfsg-1ubuntu3.23.10.2 o qemu-system-misc - 1:8.0.4+dfsg-1ubuntu3.23.10.2 o qemu-system-ppc - 1:8.0.4+dfsg-1ubuntu3.23.10.2 o qemu-system-s390x - 1:8.0.4+dfsg-1ubuntu3.23.10.2 o qemu-system-sparc - 1:8.0.4+dfsg-1ubuntu3.23.10.2 o qemu-system-x86 - 1:8.0.4+dfsg-1ubuntu3.23.10.2 o qemu-system-x86-xen - 1:8.0.4+dfsg-1ubuntu3.23.10.2 o qemu-system-xen - 1:8.0.4+dfsg-1ubuntu3.23.10.2 Ubuntu 23.04 o qemu-system - 1:7.2+dfsg-5ubuntu2.4 o qemu-system-arm - 1:7.2+dfsg-5ubuntu2.4 o qemu-system-mips - 1:7.2+dfsg-5ubuntu2.4 o qemu-system-misc - 1:7.2+dfsg-5ubuntu2.4 o qemu-system-ppc - 1:7.2+dfsg-5ubuntu2.4 o qemu-system-s390x - 1:7.2+dfsg-5ubuntu2.4 o qemu-system-sparc - 1:7.2+dfsg-5ubuntu2.4 o qemu-system-x86 - 1:7.2+dfsg-5ubuntu2.4 o qemu-system-x86-xen - 1:7.2+dfsg-5ubuntu2.4 o qemu-system-xen - 1:7.2+dfsg-5ubuntu2.4 Ubuntu 22.04 o qemu - 1:6.2+dfsg-2ubuntu6.16 o qemu-system-arm - 1:6.2+dfsg-2ubuntu6.16 o qemu-system-mips - 1:6.2+dfsg-2ubuntu6.16 o qemu-system-misc - 1:6.2+dfsg-2ubuntu6.16 o qemu-system-ppc - 1:6.2+dfsg-2ubuntu6.16 o qemu-system-s390x - 1:6.2+dfsg-2ubuntu6.16 o qemu-system-sparc - 1:6.2+dfsg-2ubuntu6.16 o qemu-system-x86 - 1:6.2+dfsg-2ubuntu6.16 o qemu-system-x86-microvm - 1:6.2+dfsg-2ubuntu6.16 o qemu-system-x86-xen - 1:6.2+dfsg-2ubuntu6.16 Ubuntu 20.04 o qemu - 1:4.2-3ubuntu6.28 o qemu-system - 1:4.2-3ubuntu6.28 o qemu-system-arm - 1:4.2-3ubuntu6.28 o qemu-system-mips - 1:4.2-3ubuntu6.28 o qemu-system-misc - 1:4.2-3ubuntu6.28 o qemu-system-ppc - 1:4.2-3ubuntu6.28 o qemu-system-s390x - 1:4.2-3ubuntu6.28 o qemu-system-sparc - 1:4.2-3ubuntu6.28 o qemu-system-x86 - 1:4.2-3ubuntu6.28 o qemu-system-x86-microvm - 1:4.2-3ubuntu6.28 o qemu-system-x86-xen - 1:4.2-3ubuntu6.28 After a standard system update you need to restart all QEMU virtual machines to make all the necessary changes. References o CVE-2023-1544 o CVE-2023-3354 o CVE-2023-3301 o CVE-2023-5088 o CVE-2020-24165 o CVE-2021-3638 o CVE-2023-4135 o CVE-2023-3180 o CVE-2023-2861 o CVE-2021-3611 o CVE-2023-3255 o CVE-2023-42467 o CVE-2020-14394 o CVE-2023-40360 - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. 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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: https://auscert.org.au/gpg-key/ iQIVAwUBZZyR6ckNZI30y1K9AQiwzRAAo2ihD1mzd3ysKQVIKqXAgWhcfVhH9WcA PJbbUn7sF4QQFZ0DQjT9qgC4NoXpif7VKIfutlouFQWemLWcykBBX9DSIAFUz9Tj MMIWo+sn2v26CkbAaUia3rE413QRgOrCdSMd/BHqP3Eyi+/pQIjSvO7IJwUQ8NaW 66jDVdYf+iPOExe6Nfnra5RnW6GxfOtLBKIMVEiBzhTrzmOM38wwHAuSCqmbk9SO f8mCn5kFkY0pwJWWFMOxkqzNAt1vFlOVaNLadBC4D0dhIhV3aP29jLw5us7yiR80 GQEQJJ4mmxm1o2Tq7i9Wdh0DiLESGu4e5xJjofpkXSTiQXECz8aM1SSB8l7bbkBH nQswmBbFWH2p+hbvRXfwTavcmJsZNzNNiWxmfSaddoaGabDauGmcYzTEBhHAXaBj SUDhlgl1gOCI57yW7fBGDRojW7KjR4AdCh22jL6rHVL/PMlVjm5tdTcn51Tl9Ttc ZmVKfVym5p6vMWtlNnCtMrYbsJdgj9yuTEiriYudLJlQJWX5de7j0IQf+cj2wRC4 ZQisbrCGgqE+O4Yy7bVLBliLgEb9zY0JChkgNv+m46uChJ0owd0eIn3BYpMzl7uw OY7CZDvaj8L0OOXPRbOlFjo5G0TeRw5xjAbankxCadifCDhzqMbke8iGVN6h0atg /0XFc5x6cnc= =s9e4 -----END PGP SIGNATURE-----