Exploit Report

Computer Security And Bug Information

CVE-2021-3782

CVECVE-2021-3782
CVE Ordinal Value216573
Published Date2022-09-23T16:15Z
Modified Date2022-09-23T16:31Z
DescriptionAn 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.
References
By clicking these links you will leave this website. We do not endorse and will not be held accountable for any activity on external sites.
Reference URLhttps://gitlab.freedesktop.org/wayland/wayland/-/issues/224
Reference DescriptionMISC https://gitlab.freedesktop.org/wayland/wayland/-/issues/224
Reference Description
Sources NIST MITRE
Note
  • No CVSS data for this CVE

This site's data is aggregated programmatically and provided "as is" without any representations or warranties, express or implied. Exploit.report is not affiliated with the The MITRE Corporation, U.S. Department of Homeland Security (DHS), Cybersecurity and Infrastructure Security Agency (CISA), or US government in any way. CVE and the CVE logo are registered trademarks of The MITRE Corporation

© 2022 Exploit.Report | Data | Contact | Privacy Policy | Articles