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PRIOn knowledge basePRION:CVE-2020-28974HistoryNov 20, 2020 - 6:15 p.m.
Design/Logic Flaw
2020-11-2018:15:00
PRIOn knowledge base
www.prio-n.com
13
A slab-out-of-bounds read in fbcon in the Linux kernel before 5.9.7 could be used by local attackers to read privileged information or potentially crash the kernel, aka CID-3c4e0dff2095. This occurs because KD_FONT_OP_COPY in drivers/tty/vt/vt.c can be used for manipulations such as font height.
References
www.openwall.com/lists/oss-security/2020/11/25/1
cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.9.7
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3c4e0dff2095c579b142d5a0693257f1c58b4804
lists.debian.org/debian-lts-announce/2020/12/msg00015.html
lists.debian.org/debian-lts-announce/2020/12/msg00027.html
seclists.org/oss-sec/2020/q4/104
security.netapp.com/advisory/ntap-20210108-0003/
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