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OVAL Definitions
>
OVAL Definition Details
Id
oval:com.altx-soft.nix:def:145823
[Rus]
Version
5
Class
vulnerability
ALTXid
344772
Language
English
Severity
High
Title
Oracle Linux -- vulnerability in kernel-uek-container, kernel-uek-container-debug, kernel-uek (CVE-2020-29569)
Description
The vulnerability was found in kernel-uek-container, kernel-uek-container-debug, kernel-uek.
Family
unix
Platform
Oracle Linux 6
Oracle Linux 7
Oracle Linux 8
Product
kernel-uek
kernel-uek-container
kernel-uek-container-debug
Reference
VENDOR: ELSA-2021-9037
VENDOR: ELSA-2021-9037
Id:
ELSA-2021-9037
Reference:
http://linux.oracle.com/errata/ELSA-2021-9037.html
VENDOR: ELSA-2021-9038
VENDOR: ELSA-2021-9038
Id:
ELSA-2021-9038
Reference:
http://linux.oracle.com/errata/ELSA-2021-9038.html
VENDOR: ELSA-2021-9024
VENDOR: ELSA-2021-9024
Id:
ELSA-2021-9024
Reference:
http://linux.oracle.com/errata/ELSA-2021-9024.html
VENDOR: ELSA-2021-9025
VENDOR: ELSA-2021-9025
Id:
ELSA-2021-9025
Reference:
http://linux.oracle.com/errata/ELSA-2021-9025.html
VENDOR: ELSA-2021-9023
VENDOR: ELSA-2021-9023
Id:
ELSA-2021-9023
Reference:
http://linux.oracle.com/errata/ELSA-2021-9023.html
CVE: CVE-2020-29569
CVE: CVE-2020-29569
Id:
CVE-2020-29569
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29569
Comment
: An issue was discovered in the Linux kernel through 5.10.1, as used with Xen through 4.14.x. The Linux kernel PV block backend expects the kernel thread handler to reset ring->xenblkd to NULL when stopped. However, the handler may not have time to run if the frontend quickly toggles between the states connect and disconnect. As a consequence, the block backend may re-use a pointer after it was freed. A misbehaving guest can trigger a dom0 crash by continuously connecting / disconnecting a block frontend. Privilege escalation and information leaks cannot be ruled out. This only affects systems with a Linux blkback.
CVSSv2 Score:
7.2
Access vector:
LOCAL
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
COMPLETE
Integrity impact:
COMPLETE
Availability impact:
COMPLETE
CVSSv2 Vector:
AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSSv3 Score:
8.8
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
CHANGED
Confidentiality impact:
HIGH
Integrity impact:
HIGH
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE:
416 (Use After Free)
References:
https://xenbits.xenproject.org/xsa/advisory-350.html (MISC)
DSA-4843 (DEBIAN)
https://security.netapp.com/advisory/ntap-20210205-0001/ (CONFIRM)
[debian-lts-announce] 20210212 [SECURITY] [DLA 2557-1] linux-4.19 security update (MLIST)
[debian-lts-announce] 20210309 [SECURITY] [DLA 2586-1] linux security update (MLIST)
GLSA-202107-30 (GENTOO)
VENDOR: ELSA-2021-9008
VENDOR: ELSA-2021-9008
Id:
ELSA-2021-9008
Reference:
http://linux.oracle.com/errata/ELSA-2021-9008.html
VENDOR: ELSA-2021-9007
VENDOR: ELSA-2021-9007
Id:
ELSA-2021-9007
Reference:
http://linux.oracle.com/errata/ELSA-2021-9007.html
VENDOR: ELSA-2021-9006
VENDOR: ELSA-2021-9006
Id:
ELSA-2021-9006
Reference:
http://linux.oracle.com/errata/ELSA-2021-9006.html
VENDOR: ELSA-2021-9005
VENDOR: ELSA-2021-9005
Id:
ELSA-2021-9005
Reference:
http://linux.oracle.com/errata/ELSA-2021-9005.html
VENDOR: ELSA-2021-9009
VENDOR: ELSA-2021-9009
Id:
ELSA-2021-9009
Reference:
http://linux.oracle.com/errata/ELSA-2021-9009.html
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