Test ID:	1.3.6.1.4.1.25623.1.1.2.2023.1519
Category:	Huawei EulerOS Local Security Checks
Title:	Huawei EulerOS: Security Advisory for wayland (EulerOS-SA-2023-1519)
Summary:	The remote host is missing an update for the Huawei EulerOS 'wayland' package(s) announced via the EulerOS-SA-2023-1519 advisory.
Description:	Summary: The remote host is missing an update for the Huawei EulerOS 'wayland' package(s) announced via the EulerOS-SA-2023-1519 advisory. Vulnerability Insight: An internal reference count is held on the buffer pool, incremented every time a new buffer is created from the pool. The reference count is maintained as an int, on LP64 systems this can cause the reference count to overflow if the client creates a large number of wl_shm buffer objects, or if it can coerce the server to create a large number of external references to the buffer storage. With the reference count overflowing, a use-after-free can be constructed on the wl_shm_pool tracking structure, where values may be incremented or decremented, it may also be possible to construct a limited oracle to leak 4 bytes of server-side memory to the attacking client at a time.(CVE-2021-3782) Affected Software/OS: 'wayland' package(s) on Huawei EulerOS V2.0SP5. Solution: Please install the updated package(s). CVSS Score: 5.7 CVSS Vector: AV:L/AC:L/Au:S/C:P/I:P/A:C
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2021-3782 https://gitlab.freedesktop.org/wayland/wayland/-/issues/224
Copyright	Copyright (C) 2023 Greenbone AG

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