# CVE-2020-10702: qemu: A flaw was found in QEMU in the implementation of the Pointer Authentication (PAuth) support for ARM introduced in ve... CVE-2020-10702 is fixed in 21 products on 1 platform, first by qemu 1:4.2-3ubuntu5, released April 12, 2020. It is not reported as exploited. Patch Radar priority: Routine. - Web page: https://patchblox.com/security/cve/CVE-2020-10702 - Priority: Routine - CVSS: n/a (Low) - EPSS: 0.0033 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Apr 12, 2020 ## Description A flaw was found in QEMU in the implementation of the Pointer Authentication (PAuth) support for ARM introduced in version 4.0 and fixed in version 5.0.0. A general failure of the signature generation process caused every PAuth-enforced pointer to be signed with the same signature. A local attacker could obtain the signature of a protected pointer and abuse this flaw to bypass PAuth protection for all programs running on QEMU. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | qemu Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu5 | [qemu 1:4.2-3ubuntu5](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-1-4.2-3ubuntu5.md) | Apr 12, 2020 | | Linux | qemu-block-extra Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu5 | [qemu-block-extra 1:4.2-3ubuntu5](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-block-extra-1-4.2-3ubuntu5.md) | Apr 12, 2020 | | Linux | qemu-guest-agent Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu5 | [qemu-guest-agent 1:4.2-3ubuntu5](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-guest-agent-1-4.2-3ubuntu5.md) | Apr 12, 2020 | | Linux | qemu-kvm Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu5 | [qemu-kvm 1:4.2-3ubuntu5](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-kvm-1-4.2-3ubuntu5.md) | Apr 12, 2020 | | Linux | qemu-system Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu5 | [qemu-system 1:4.2-3ubuntu5](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-system-1-4.2-3ubuntu5.md) | Apr 12, 2020 | | Linux | qemu-system-arm Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu5 | [qemu-system-arm 1:4.2-3ubuntu5](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-system-arm-1-4.2-3ubuntu5.md) | Apr 12, 2020 | | Linux | qemu-system-common Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu5 | [qemu-system-common 1:4.2-3ubuntu5](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-system-common-1-4.2-3ubuntu5.md) | Apr 12, 2020 | | Linux | qemu-system-data Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu5 | [qemu-system-data 1:4.2-3ubuntu5](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-system-data-1-4.2-3ubuntu5.md) | Apr 12, 2020 | | Linux | qemu-system-gui Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu5 | [qemu-system-gui 1:4.2-3ubuntu5](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-system-gui-1-4.2-3ubuntu5.md) | Apr 12, 2020 | | Linux | qemu-system-mips Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu5 | [qemu-system-mips 1:4.2-3ubuntu5](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-system-mips-1-4.2-3ubuntu5.md) | Apr 12, 2020 | | Linux | qemu-system-misc Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu5 | [qemu-system-misc 1:4.2-3ubuntu5](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-system-misc-1-4.2-3ubuntu5.md) | Apr 12, 2020 | | Linux | qemu-system-ppc Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu5 | [qemu-system-ppc 1:4.2-3ubuntu5](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-system-ppc-1-4.2-3ubuntu5.md) | Apr 12, 2020 | | Linux | qemu-system-s390x Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu5 | [qemu-system-s390x 1:4.2-3ubuntu5](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-system-s390x-1-4.2-3ubuntu5.md) | Apr 12, 2020 | | Linux | qemu-system-sparc Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu5 | [qemu-system-sparc 1:4.2-3ubuntu5](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-system-sparc-1-4.2-3ubuntu5.md) | Apr 12, 2020 | | Linux | qemu-system-x86 Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu5 | [qemu-system-x86 1:4.2-3ubuntu5](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-system-x86-1-4.2-3ubuntu5.md) | Apr 12, 2020 | | Linux | qemu-system-x86-microvm Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu5 | [qemu-system-x86-microvm 1:4.2-3ubuntu5](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-system-x86-microvm-1-4.2-3ubuntu5.md) | Apr 12, 2020 | | Linux | qemu-system-x86-xen Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu5 | [qemu-system-x86-xen 1:4.2-3ubuntu5](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-system-x86-xen-1-4.2-3ubuntu5.md) | Apr 12, 2020 | | Linux | qemu-user Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu5 | [qemu-user 1:4.2-3ubuntu5](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-user-1-4.2-3ubuntu5.md) | Apr 12, 2020 | | Linux | qemu-user-binfmt Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu5 | [qemu-user-binfmt 1:4.2-3ubuntu5](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-user-binfmt-1-4.2-3ubuntu5.md) | Apr 12, 2020 | | Linux | qemu-user-static Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu5 | [qemu-user-static 1:4.2-3ubuntu5](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-user-static-1-4.2-3ubuntu5.md) | Apr 12, 2020 | | Linux | qemu-utils Ubuntu 20.04 LTS (focal) | 1:4.2-3ubuntu5 | [qemu-utils 1:4.2-3ubuntu5](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-utils-1-4.2-3ubuntu5.md) | Apr 12, 2020 | --- Data as of 2026-11-08T00:53:09Z UTC. 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