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OVAL Definitions
>
OVAL Definition Details
Id
oval:com.altx-soft.nix:def:19364
[Rus]
Version
2
Class
patch
ALTXid
174843
Language
English
Severity
Medium
Title
ALAS-2018-993 -- security update for kernel
Description
Missing length check of payload in net/sctp/sm_make_chunk.c:_sctp_make_chunk() function allows denial of service: An error in the '_sctp_make_chunk()' function (net/sctp/sm_make_chunk.c)
when handling SCTP, packet length can be exploited by a malicious local user to cause a kernel crash and a DoS. (CVE-2018-5803)
Mishandling mutex within libsas allowing local Denial of ServiceThe Serial Attached SCSI (SAS) implementation in Linux Kernel mishandles a mutex within libsas.
This allows local users to cause a denial of service (deadlock) by triggering certain error-handling code. (CVE-2017-18232)
Family
unix
Platform
Amazon Linux AMI
Product
kernel
Reference
VENDOR: ALAS-2018-993
VENDOR: ALAS-2018-993
Id:
ALAS-2018-993
Reference:
https://alas.aws.amazon.com/ALAS-2018-993.html
CVE: CVE-2018-5803
CVE: CVE-2018-5803
Id:
CVE-2018-5803
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-5803
Comment
: In the Linux Kernel before version 4.15.8, 4.14.25, 4.9.87, 4.4.121, 4.1.51, and 3.2.102, an error in the "_sctp_make_chunk()" function (net/sctp/sm_make_chunk.c) when handling SCTP packets length can be exploited to cause a kernel crash.
CVSSv2 Score:
4.9
Access vector:
LOCAL
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
COMPLETE
CVSSv2 Vector:
AV:L/AC:L/Au:N/C:N/I:N/A:C
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:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE:
20 (Improper Input Validation)
References:
[netdev] 20180207 [Secunia Research] Linux Kernel Vulnerability - Sending information (MLIST)
[linux-sctp] 20180209 skb_over_panic on INIT/INIT_ACK packet sending (MLIST)
https://secuniaresearch.flexerasoftware.com/secunia_research/2018-2/ (MISC)
81331 (SECUNIA)
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/commit/?id=07f2c7ab6f8d0a7e7c5764c4e6cc9c52951b9d9c (CONFIRM)
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.87 (CONFIRM)
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.121 (CONFIRM)
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.15.8 (CONFIRM)
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.25 (CONFIRM)
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.1.51 (CONFIRM)
https://cdn.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.102 (CONFIRM)
DSA-4188 (DEBIAN)
DSA-4187 (DEBIAN)
USN-3656-1 (UBUNTU)
USN-3654-2 (UBUNTU)
USN-3654-1 (UBUNTU)
[debian-lts-announce] 20180502 [SECURITY] [DLA 1369-1] linux security update (MLIST)
RHSA-2018:1854 (REDHAT)
USN-3698-2 (UBUNTU)
USN-3697-2 (UBUNTU)
USN-3697-1 (UBUNTU)
USN-3698-1 (UBUNTU)
RHSA-2018:3096 (REDHAT)
RHSA-2018:3083 (REDHAT)
RHSA-2018:2948 (REDHAT)
RHSA-2019:0641 (REDHAT)
CVE: CVE-2017-18232
CVE: CVE-2017-18232
Id:
CVE-2017-18232
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-18232
Comment
: The Serial Attached SCSI (SAS) implementation in the Linux kernel through 4.15.9 mishandles a mutex within libsas, which allows local users to cause a denial of service (deadlock) by triggering certain error-handling code.
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:
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:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References:
https://github.com/torvalds/linux/commit/0558f33c06bb910e2879e355192227a8e8f0219d (MISC)
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0558f33c06bb910e2879e355192227a8e8f0219d (MISC)
103423 (BID)
DSA-4187 (DEBIAN)
RHSA-2018:3096 (REDHAT)
RHSA-2018:3083 (REDHAT)
USN-4163-1 (UBUNTU)
USN-4163-2 (UBUNTU)
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