Vulnerabilities (CVE)

Filtered by vendor Wayland Subscribe
Filtered by product Wayland
Total 1 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2021-3782 1 Wayland 1 Wayland 2023-12-10 N/A 6.6 MEDIUM
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.