ALT-PU-2020-3262-1
Package kernel-image-mp updated to version 5.9.8-alt1 for branch sisyphus in task 261551.
Closed vulnerabilities
Published: 2020-11-08
BDU:2020-05544
Уязвимость функции KD_FONT_OP_COPY драйвера fbcon ядра операционных систем Linux, позволяющая нарушителю повысить свои привилегии или вызвать отказ в обслуживании
Severity: MEDIUM (5.0)
Vector: AV:P/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H
References:
Published: 2020-11-20
Modified: 2024-11-21
Modified: 2024-11-21
CVE-2020-28974
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.
Severity: MEDIUM (5.0)
Vector: CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H
References:
- [oss-security] 20201124 Re: Linux kernel slab-out-of-bounds Read in fbcon
- [oss-security] 20201124 Re: Linux kernel slab-out-of-bounds Read in fbcon
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.9.7
- 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=3c4e0dff2095c579b142d5a0693257f1c58b4804
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3c4e0dff2095c579b142d5a0693257f1c58b4804
- [debian-lts-announce] 20201210 [SECURITY] [DLA 2483-1] linux-4.19 security update
- [debian-lts-announce] 20201210 [SECURITY] [DLA 2483-1] linux-4.19 security update
- [debian-lts-announce] 20201218 [SECURITY] [DLA 2494-1] linux security update
- [debian-lts-announce] 20201218 [SECURITY] [DLA 2494-1] linux security update
- https://seclists.org/oss-sec/2020/q4/104
- https://seclists.org/oss-sec/2020/q4/104
- https://security.netapp.com/advisory/ntap-20210108-0003/
- https://security.netapp.com/advisory/ntap-20210108-0003/