VulnerabilityModified
CVE-2021-33656
When setting font with malicous data by ioctl cmd PIO_FONT,kernel will write memory out of bounds.
MEDIUM 6.8EPSS 0.61%
Does this matter?
Lower severity and a low EPSS score (0.61%). Track it; it rarely justifies an emergency change on its own.
Description
When setting font with malicous data by ioctl cmd PIO_FONT,kernel will write memory out of bounds.
- CVSS 3.1
- 6.8 MEDIUMCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.61% probability · 47th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- openatom/openeuler · linux/linux kernel · debian/debian linux
- Source
- securities@openeuler.org
References
- http://www.openwall.com/lists/oss-security/2022/07/19/3Mailing List, Patch, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/releases/5.10.127/vt-drop-old-font-ioctls.patchPatch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/10/msg00000.htmlMailing List, Third Party Advisory
- https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2021-33656&packageName=kernelThird Party Advisory
- http://www.openwall.com/lists/oss-security/2022/07/19/3Mailing List, Patch, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/releases/5.10.127/vt-drop-old-font-ioctls.patchPatch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/10/msg00000.htmlMailing List, Third Party Advisory
- https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2021-33656&packageName=kernelThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.