CVE-2020-28974
MEDIUM 5.0EPSS 0.5%
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.
- CVSS v3.1 NVD
- 5.0 MEDIUM
CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H - CVSS v2.0 NVD
- 6.1 MEDIUM
AV:L/AC:L/Au:N/C:P/I:P/A:C - EPSS
- 0.52% chance of exploitation in the next 30 days, 43rd percentile
- Published
- 2020-11-20
- Updated
- 2024-08-04
Proof-of-concept exploits (1)
Security advisories
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.9.7
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3c4e0dff209…
- http://www.openwall.com/lists/oss-security/2020/11/25/1
- https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html
- https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html
- https://security.netapp.com/advisory/ntap-20210108-0003