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CVE-2022-2962

Status Candidate

Overview

A DMA reentrancy issue was found in the Tulip device emulation in QEMU. When Tulip reads or writes to the rx/tx descriptor or copies the rx/tx frame, it doesn't check whether the destination address is its own MMIO address. This can cause the device to trigger MMIO handlers multiple times, possibly leading to a stack or heap overflow. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.

Related Files

Gentoo Linux Security Advisory 202408-18
Posted Aug 9, 2024
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202408-18 - Multiple vulnerabilities have been discovered in QEMU, the worst of which could lead to a denial of service. Versions greater than or equal to 8.0.0 are affected.

tags | advisory, denial of service, vulnerability
systems | linux, gentoo
advisories | CVE-2020-14394, CVE-2022-0216, CVE-2022-1050, CVE-2022-2962, CVE-2022-35414, CVE-2022-4144, CVE-2022-4172, CVE-2023-1544, CVE-2023-2861
SHA-256 | 1f8b23237c495b5b7aceb4eaa5988cdbafaf89ca957c76813f34f43cd5ebf53c
Ubuntu Security Notice USN-5772-1
Posted Dec 12, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5772-1 - It was discovered that QEMU incorrectly handled bulk transfers from SPICE clients. A remote attacker could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. It was discovered that QEMU did not properly manage memory when it transfers the USB packets. A malicious guest attacker could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 22.04 LTS.

tags | advisory, remote, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2021-3682, CVE-2021-3750, CVE-2021-3930, CVE-2022-0216, CVE-2022-2962, CVE-2022-3165
SHA-256 | 768024681dfd9068a64b260049ff17b38a9319596abe4a29fe8b4d7a96a0987a
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