CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
76.7%
Issue Overview:
The Linux kernel did not properly suppress hugetlbfs support in x86 PV guests, which could allow local PV guest users to cause a denial of service (guest OS crash) by attempting to access a hugetlbfs mapped area. (CVE-2016-3961 / XSA-174)
A flaw was found in the way the Linux kernel’s ASN.1 DER decoder processed certain certificate files with tags of indefinite length. A local, unprivileged user could use a specially crafted X.509 certificate DER file to crash the system or, potentially, escalate their privileges on the system. (CVE-2016-0758)
Multiple race conditions in the ext4 filesystem implementation in the Linux kernel before 4.5 allow local users to cause a denial of service (disk corruption) by writing to a page that is associated with a different user’s file after unsynchronized hole punching and page-fault handling. (CVE-2015-8839)
The following flaws were also fixed in this version:
CVE-2016-4557: Use after free vulnerability via double fdput
CVE-2016-4581: Slave being first propagated copy causes oops in propagate_mnt
CVE-2016-4486: Information leak in rtnetlink
CVE-2016-4485: Information leak in llc module
CVE-2016-4558: bpf: refcnt overflow
CVE-2016-4565: infiniband: Unprivileged process can overwrite kernel memory using rdma_ucm.ko
CVE-2016-0758: tags with indefinite length can corrupt pointers in asn1_find_indefinite_length()
CVE-2015-8839: ext4 filesystem page fault race condition with fallocate call.
Affected Packages:
kernel
Issue Correction:
Run yum update kernel to update your system.
New Packages:
i686:
perf-debuginfo-4.4.10-22.54.amzn1.i686
kernel-headers-4.4.10-22.54.amzn1.i686
kernel-tools-debuginfo-4.4.10-22.54.amzn1.i686
perf-4.4.10-22.54.amzn1.i686
kernel-4.4.10-22.54.amzn1.i686
kernel-debuginfo-common-i686-4.4.10-22.54.amzn1.i686
kernel-devel-4.4.10-22.54.amzn1.i686
kernel-tools-4.4.10-22.54.amzn1.i686
kernel-tools-devel-4.4.10-22.54.amzn1.i686
kernel-debuginfo-4.4.10-22.54.amzn1.i686
noarch:
kernel-doc-4.4.10-22.54.amzn1.noarch
src:
kernel-4.4.10-22.54.amzn1.src
x86_64:
kernel-tools-4.4.10-22.54.amzn1.x86_64
perf-4.4.10-22.54.amzn1.x86_64
kernel-tools-debuginfo-4.4.10-22.54.amzn1.x86_64
perf-debuginfo-4.4.10-22.54.amzn1.x86_64
kernel-devel-4.4.10-22.54.amzn1.x86_64
kernel-4.4.10-22.54.amzn1.x86_64
kernel-headers-4.4.10-22.54.amzn1.x86_64
kernel-debuginfo-common-x86_64-4.4.10-22.54.amzn1.x86_64
kernel-debuginfo-4.4.10-22.54.amzn1.x86_64
kernel-tools-devel-4.4.10-22.54.amzn1.x86_64
Red Hat: CVE-2015-8839, CVE-2016-0758, CVE-2016-3961, CVE-2016-4485, CVE-2016-4486, CVE-2016-4557, CVE-2016-4558, CVE-2016-4565, CVE-2016-4581
Mitre: CVE-2015-8839, CVE-2016-0758, CVE-2016-3961, CVE-2016-4485, CVE-2016-4486, CVE-2016-4557, CVE-2016-4558, CVE-2016-4565, CVE-2016-4581
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Amazon Linux | 1 | i686 | perf-debuginfo | < 4.4.10-22.54.amzn1 | perf-debuginfo-4.4.10-22.54.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | kernel-headers | < 4.4.10-22.54.amzn1 | kernel-headers-4.4.10-22.54.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | kernel-tools-debuginfo | < 4.4.10-22.54.amzn1 | kernel-tools-debuginfo-4.4.10-22.54.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | perf | < 4.4.10-22.54.amzn1 | perf-4.4.10-22.54.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | kernel | < 4.4.10-22.54.amzn1 | kernel-4.4.10-22.54.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | kernel-debuginfo-common-i686 | < 4.4.10-22.54.amzn1 | kernel-debuginfo-common-i686-4.4.10-22.54.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | kernel-devel | < 4.4.10-22.54.amzn1 | kernel-devel-4.4.10-22.54.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | kernel-tools | < 4.4.10-22.54.amzn1 | kernel-tools-4.4.10-22.54.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | kernel-tools-devel | < 4.4.10-22.54.amzn1 | kernel-tools-devel-4.4.10-22.54.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | kernel-debuginfo | < 4.4.10-22.54.amzn1 | kernel-debuginfo-4.4.10-22.54.amzn1.i686.rpm |
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
76.7%