ALT Linux Team

Package kernel-image-un-def update in sisyphus on 2020-07-24

ALT-PU-2020-2448-1

Package kernel-image-un-def updated to version 5.7.10-alt1 for branch sisyphus in task 255322.

Closed vulnerabilities

Published: 2020-07-20

BDU:2021-02589

Уязвимость функции tss_invalidate_io_bitmap ядра операционной системы Linux, позволяющая нарушителю повысить свои привилегии

Severity: HIGH (7.8) Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity: MEDIUM (6.8) Vector: AV:L/AC:L/Au:S/C:C/I:C/A:C
References:
Published: 2020-07-07

BDU:2021-03189

Уязвимость подсистемы cgroupv2 ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании или повысить свои привилегии

Severity: HIGH (7.8) Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity: MEDIUM (6.8) Vector: AV:L/AC:L/Au:S/C:C/I:C/A:C
References:
Published: 2020-08-19
Modified: 2024-11-21

CVE-2020-14356

A flaw null pointer dereference in the Linux kernel cgroupv2 subsystem in versions before 5.7.10 was found in the way when reboot the system. A local user could use this flaw to crash the system or escalate their privileges on the system.

Severity: HIGH (7.2) Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C
Severity: HIGH (7.8) Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References:
Published: 2020-07-20
Modified: 2024-11-21

CVE-2020-15852

An issue was discovered in the Linux kernel 5.5 through 5.7.9, as used in Xen through 4.13.x for x86 PV guests. An attacker may be granted the I/O port permissions of an unrelated task. This occurs because tss_invalidate_io_bitmap mishandling causes a loss of synchronization between the I/O bitmaps of TSS and Xen, aka CID-cadfad870154.

Severity: MEDIUM (4.6) Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P
Severity: HIGH (7.8) Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References:
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Version: 2.1.2
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