Vulnerabilities > CVE-2021-33655 - Out-of-bounds Write vulnerability in multiple products
Attack vector
LOCAL Attack complexity
LOW Privileges required
HIGH Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
When sending malicous data to kernel by ioctl cmd FBIOPUT_VSCREENINFO,kernel will write memory out of bounds.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
References
- http://www.openwall.com/lists/oss-security/2022/07/19/2
- http://www.openwall.com/lists/oss-security/2022/07/19/2
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=086ff84617185393a0bbf25830c4f36412a7d3f4
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=086ff84617185393a0bbf25830c4f36412a7d3f4
- https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html
- https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html
- https://www.debian.org/security/2022/dsa-5191
- https://www.debian.org/security/2022/dsa-5191