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