It is, therefore, affected by a vulnerability as referenced in the ALAS2-2023-2103 advisory.

    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)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

According to the versions of the wayland package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - 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)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the wayland package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - 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)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
177882	Amazon Linux 2 : wayland (ALAS-2023-2103)	Nessus	Amazon Linux Local Security Checks	2023/7/1	2024/12/11	medium
167403	EulerOS 2.0 SP9 : wayland (EulerOS-SA-2022-2749)	Nessus	Huawei Local Security Checks	2022/11/14	2023/10/4	medium
168969	EulerOS 2.0 SP10 : wayland (EulerOS-SA-2022-2836)	Nessus	Huawei Local Security Checks	2022/12/21	2023/9/12	medium
168974	EulerOS 2.0 SP10 : wayland (EulerOS-SA-2022-2862)	Nessus	Huawei Local Security Checks	2022/12/21	2023/9/12	medium
169803	EulerOS Virtualization 2.9.1 : wayland (EulerOS-SA-2023-1209)	Nessus	Huawei Local Security Checks	2023/1/10	2023/9/8	medium
169849	EulerOS Virtualization 2.10.1 : wayland (EulerOS-SA-2023-1159)	Nessus	Huawei Local Security Checks	2023/1/11	2023/9/8	medium

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