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CVE-2021-33656

CVE-2021-33656

EPSS 0.5%CWE-787
When setting font with malicous data by ioctl cmd PIO_FONT,kernel will write memory out of bounds.
Affected products
n/a · openEuler:kernel

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References
https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/releases/5.10.127/vt-drop-old-font-ioctls.patchhttps://lists.debian.org/debian-lts-announce/2022/10/msg00000.htmlhttps://www.openeuler.org/en/security/cve/detail.html?id=CVE-2021-33656&packageName=kernelhttp://www.openwall.com/lists/oss-security/2022/07/19/3