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OVAL Definitions
>
OVAL Definition Details
Id
oval:com.altx-soft.nix:def:151018
[Rus]
Version
2
Class
patch
ALTXid
353289
Language
English
Severity
High
Title
SUSE-SU-2021:1373-1 -- Security update for the Linux Kernel (Live Patch 36 for SLE 12 SP3)
Description
This update for the Linux Kernel 4.4.180-94_135 fixes one issue.
Family
unix
Platform
SUSE Linux Enterprise Server 12-LTSS
SUSE Linux Enterprise Server for SAP 12
Product
Linux Kernel
Reference
VENDOR: SUSE-SU-2021:1373-1
VENDOR: SUSE-SU-2021:1373-1
Id:
SUSE-SU-2021:1373-1
Reference:
https://www.suse.com/support/update/announcement/2021/SUSE-SU-20211373-1/
CVE: CVE-2021-26930
CVE: CVE-2021-26930
Id:
CVE-2021-26930
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26930
Comment
: An issue was discovered in the Linux kernel 3.11 through 5.10.16, as used by Xen. To service requests to the PV backend, the driver maps grant references provided by the frontend. In this process, errors may be encountered. In one case, an error encountered earlier might be discarded by later processing, resulting in the caller assuming successful mapping, and hence subsequent operations trying to access space that wasn't mapped. In another case, internal state would be insufficiently updated, preventing safe recovery from the error. This affects drivers/block/xen-blkback/blkback.c.
CVSSv2 Score:
4.6
Access vector:
LOCAL
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
PARTIAL
Integrity impact:
PARTIAL
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:L/AC:L/Au:N/C:P/I:P/A:P
CVSSv3 Score:
7.8
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
HIGH
Integrity impact:
HIGH
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References:
http://xenbits.xen.org/xsa/advisory-365.html (MISC)
[debian-lts-announce] 20210309 [SECURITY] [DLA 2586-1] linux security update (MLIST)
https://security.netapp.com/advisory/ntap-20210326-0001/ (CONFIRM)
[debian-lts-announce] 20210330 [SECURITY] [DLA 2610-1] linux-4.19 security update (MLIST)
FEDORA-2021-8d45d297c6 ()
FEDORA-2021-7143aca8cb ()
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=871997bc9e423f05c7da7c9178e62dde5df2a7f8 ()
CVE: CVE-2021-26931
CVE: CVE-2021-26931
Id:
CVE-2021-26931
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26931
Comment
: An issue was discovered in the Linux kernel 2.6.39 through 5.10.16, as used in Xen. Block, net, and SCSI backends consider certain errors a plain bug, deliberately causing a kernel crash. For errors potentially being at least under the influence of guests (such as out of memory conditions), it isn't correct to assume a plain bug. Memory allocations potentially causing such crashes occur only when Linux is running in PV mode, though. This affects drivers/block/xen-blkback/blkback.c and drivers/xen/xen-scsiback.c.
CVSSv2 Score:
1.9
Access vector:
LOCAL
Access complexity:
MEDIUM
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:L/AC:M/Au:N/C:N/I:N/A:P
CVSSv3 Score:
5.5
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE:
770 (Allocation of Resources Without Limits or Throttling)
References:
http://xenbits.xen.org/xsa/advisory-362.html (MISC)
[debian-lts-announce] 20210309 [SECURITY] [DLA 2586-1] linux security update (MLIST)
https://security.netapp.com/advisory/ntap-20210326-0001/ (CONFIRM)
[debian-lts-announce] 20210330 [SECURITY] [DLA 2610-1] linux-4.19 security update (MLIST)
FEDORA-2021-8d45d297c6 ()
FEDORA-2021-7143aca8cb ()
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7c77474b2d22176d2bfb592ec74e0f2cb71352c9 ()
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5a264285ed1cd32e26d9de4f3c8c6855e467fd63 ()
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3194a1746e8aabe86075fd3c5e7cf1f4632d7f16 ()
CVE: CVE-2021-28688
CVE: CVE-2021-28688
Id:
CVE-2021-28688
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28688
Comment
: The fix for XSA-365 includes initialization of pointers such that subsequent cleanup code wouldn't use uninitialized or stale values. This initialization went too far and may under certain conditions also overwrite pointers which are in need of cleaning up. The lack of cleanup would result in leaking persistent grants. The leak in turn would prevent fully cleaning up after a respective guest has died, leaving around zombie domains. All Linux versions having the fix for XSA-365 applied are vulnerable. XSA-365 was classified to affect versions back to at least 3.11.
CVSSv2 Score:
2.1
Access vector:
LOCAL
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:L/AC:L/Au:N/C:N/I:N/A:P
CVSSv3 Score:
6.5
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
CHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
CWE:
665 (Improper Initialization)
References:
https://xenbits.xenproject.org/xsa/advisory-371.txt (MISC)
[debian-lts-announce] 20210623 [SECURITY] [DLA 2690-1] linux-4.19 security update (MLIST)
[debian-lts-announce] 20210623 [SECURITY] [DLA 2689-1] linux security update (MLIST)
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