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PRIOn knowledge basePRION:CVE-2021-33656HistoryJul 18, 2022 - 3:15 p.m.
Out-of-bounds
2022-07-1815:15:00
PRIOn knowledge base
www.prio-n.com
12
font setting
malicious data
kernel security
memory bounds
nvd
When setting font with malicous data by ioctl cmd PIO_FONT,kernel will write memory out of bounds.
References
www.openwall.com/lists/oss-security/2022/07/19/3
git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/releases/5.10.127/vt-drop-old-font-ioctls.patch
lists.debian.org/debian-lts-announce/2022/10/msg00000.html
www.openeuler.org/en/security/cve/detail.html?id=CVE-2021-33656&packageName=kernel
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