qemu: An assertion failure issue was found in the Network Block Device(NBD) Server in all QEMU versions before QEMU 5.0.1
CVE-2020-10761 is fixed in 21 products on 1 platform, first by qemu 1:4.2-3ubuntu6.4, released August 11, 2020. It is not reported as exploited. Patch Radar priority: Routine.
An assertion failure issue was found in the Network Block Device(NBD) Server in all QEMU versions before QEMU 5.0.1. This flaw occurs when an nbd-client sends a spec-compliant request that is near the boundary of maximum permitted request length. A remote nbd-client could use this flaw to crash the qemu-nbd server resulting in a denial of service.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| qemu · Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu6.4 | qemu 1:4.2-3ubuntu6.4 | Aug 11, 2020 |
| qemu-block-extra · Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu6.4 | qemu-block-extra 1:4.2-3ubuntu6.4 | Aug 11, 2020 |
| qemu-guest-agent · Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu6.4 | qemu-guest-agent 1:4.2-3ubuntu6.4 | Aug 11, 2020 |
| qemu-kvm · Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu6.4 | qemu-kvm 1:4.2-3ubuntu6.4 | Aug 11, 2020 |
| qemu-system · Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu6.4 | qemu-system 1:4.2-3ubuntu6.4 | Aug 11, 2020 |
| qemu-system-arm · Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu6.4 | qemu-system-arm 1:4.2-3ubuntu6.4 | Aug 11, 2020 |
| qemu-system-common · Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu6.4 | qemu-system-common 1:4.2-3ubuntu6.4 | Aug 11, 2020 |
| qemu-system-data · Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu6.4 | qemu-system-data 1:4.2-3ubuntu6.4 | Aug 11, 2020 |
| qemu-system-gui · Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu6.4 | qemu-system-gui 1:4.2-3ubuntu6.4 | Aug 11, 2020 |
| qemu-system-mips · Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu6.4 | qemu-system-mips 1:4.2-3ubuntu6.4 | Aug 11, 2020 |
| qemu-system-misc · Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu6.4 | qemu-system-misc 1:4.2-3ubuntu6.4 | Aug 11, 2020 |
| qemu-system-ppc · Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu6.4 | qemu-system-ppc 1:4.2-3ubuntu6.4 | Aug 11, 2020 |
| qemu-system-s390x · Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu6.4 | qemu-system-s390x 1:4.2-3ubuntu6.4 | Aug 11, 2020 |
| qemu-system-sparc · Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu6.4 | qemu-system-sparc 1:4.2-3ubuntu6.4 | Aug 11, 2020 |
| qemu-system-x86 · Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu6.4 | qemu-system-x86 1:4.2-3ubuntu6.4 | Aug 11, 2020 |
| qemu-system-x86-microvm · Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu6.4 | qemu-system-x86-microvm 1:4.2-3ubuntu6.4 | Aug 11, 2020 |
| qemu-system-x86-xen · Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu6.4 | qemu-system-x86-xen 1:4.2-3ubuntu6.4 | Aug 11, 2020 |
| qemu-user · Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu6.4 | qemu-user 1:4.2-3ubuntu6.4 | Aug 11, 2020 |
| qemu-user-binfmt · Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu6.4 | qemu-user-binfmt 1:4.2-3ubuntu6.4 | Aug 11, 2020 |
| qemu-user-static · Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu6.4 | qemu-user-static 1:4.2-3ubuntu6.4 | Aug 11, 2020 |
| qemu-utils · Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu6.4 | qemu-utils 1:4.2-3ubuntu6.4 | Aug 11, 2020 |
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