Vulnerability Description
When sending malicous data to kernel by ioctl cmd FBIOPUT_VSCREENINFO,kernel will write memory out of bounds.
CVSS Score
6.7
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 5.19 |
| Debian | Debian Linux | 10.0 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2022/07/19/2Mailing ListPatchThird Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=08Mailing ListPatchVendor Advisory
- https://lists.debian.org/debian-lts-announce/2022/10/msg00000.htmlMailing ListThird Party Advisory
- https://www.debian.org/security/2022/dsa-5191Third Party Advisory
- http://www.openwall.com/lists/oss-security/2022/07/19/2Mailing ListPatchThird Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=08Mailing ListPatchVendor Advisory
- https://lists.debian.org/debian-lts-announce/2022/10/msg00000.htmlMailing ListThird Party Advisory
- https://www.debian.org/security/2022/dsa-5191Third Party Advisory
FAQ
What is CVE-2021-33655?
CVE-2021-33655 is a vulnerability with a CVSS score of 6.7 (MEDIUM). When sending malicous data to kernel by ioctl cmd FBIOPUT_VSCREENINFO,kernel will write memory out of bounds.
How severe is CVE-2021-33655?
CVE-2021-33655 has been rated MEDIUM with a CVSS base score of 6.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-33655?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Debian Debian Linux.