An update for wayland is now available for openEuler-20.03-LTS-SP1,openEuler-20.03-LTS-SP3 and openEuler-22.03-LTS Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2022-1920 Final 1.0 1.0 2022-09-16 Initial 2022-09-16 2022-09-16 openEuler SA Tool V1.0 2022-09-16 wayland security update An update for wayland is now available for openEuler-20.03-LTS-SP1,openEuler-20.03-LTS-SP3 and openEuler-22.03-LTS. Wayland is a protocol for a compositor to talk to its clients as well as a C library implementation of that protocol. The compositor can be a standalone display server running on Linux kernel modesetting and evdev input devices, an X application, or a wayland client itself. The clients can be traditional applications, X servers (rootless or fullscreen) or other display servers. Part of the Wayland project is also the Weston reference implementation of a Wayland compositor. Weston can run as an X client or under Linux KMS and ships with a few demo clients. The Weston compositor is a minimal and fast compositor and is suitable for many embedded and mobile use cases. Security Fix(es): 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) An update for wayland is now available for openEuler-20.03-LTS-SP1,openEuler-20.03-LTS-SP3 and openEuler-22.03-LTS. openEuler Security has rated this update as having a security impact of medium. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section. Medium wayland https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-1920 https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2021-3782 https://nvd.nist.gov/vuln/detail/CVE-2021-3782 openEuler-20.03-LTS-SP1 openEuler-20.03-LTS-SP3 openEuler-22.03-LTS wayland-debuginfo-1.17.0-3.oe1.aarch64.rpm wayland-debugsource-1.17.0-3.oe1.aarch64.rpm wayland-devel-1.17.0-3.oe1.aarch64.rpm wayland-1.17.0-3.oe1.aarch64.rpm wayland-1.17.0-3.oe1.aarch64.rpm wayland-devel-1.17.0-3.oe1.aarch64.rpm wayland-debugsource-1.17.0-3.oe1.aarch64.rpm wayland-debuginfo-1.17.0-3.oe1.aarch64.rpm wayland-debuginfo-1.19.91-4.oe2203.aarch64.rpm wayland-1.19.91-4.oe2203.aarch64.rpm wayland-devel-1.19.91-4.oe2203.aarch64.rpm wayland-debugsource-1.19.91-4.oe2203.aarch64.rpm wayland-help-1.17.0-3.oe1.noarch.rpm wayland-help-1.17.0-3.oe1.noarch.rpm wayland-help-1.19.91-4.oe2203.noarch.rpm wayland-1.17.0-3.oe1.src.rpm wayland-1.17.0-3.oe1.src.rpm wayland-1.19.91-4.oe2203.src.rpm wayland-debuginfo-1.17.0-3.oe1.x86_64.rpm wayland-devel-1.17.0-3.oe1.x86_64.rpm wayland-debugsource-1.17.0-3.oe1.x86_64.rpm wayland-1.17.0-3.oe1.x86_64.rpm wayland-devel-1.17.0-3.oe1.x86_64.rpm wayland-1.17.0-3.oe1.x86_64.rpm wayland-debugsource-1.17.0-3.oe1.x86_64.rpm wayland-debuginfo-1.17.0-3.oe1.x86_64.rpm wayland-devel-1.19.91-4.oe2203.x86_64.rpm wayland-1.19.91-4.oe2203.x86_64.rpm wayland-debuginfo-1.19.91-4.oe2203.x86_64.rpm wayland-debugsource-1.19.91-4.oe2203.x86_64.rpm 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. 2022-09-16 CVE-2021-3782 openEuler-20.03-LTS-SP1 openEuler-20.03-LTS-SP3 openEuler-22.03-LTS Medium 6.6 AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L wayland security update 2022-09-16 https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-1920