7.8 High
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
7.6 High
CVSS2
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:H/Au:N/C:C/I:C/A:C
0.002 Low
EPSS
Percentile
60.6%
Issue Overview:
A flaw was found in the Linux kernel key management subsystem in which a local attacker could crash the kernel or corrupt the stack and additional memory (denial of service) by supplying a specially crafted RSA key. This flaw panics the machine during the verification of the RSA key. (CVE-2016-8650)
The blk_rq_map_user_iov function in block/blk-map.c in the Linux kernel before 4.8.14 does not properly restrict the type of iterator, which allows local users to read or write to arbitrary kernel memory locations or cause a denial of service (use-after-free) by leveraging access to a /dev/sg device. (CVE-2016-9576)
The sock_setsockopt function in net/core/sock.c in the Linux kernel before 4.8.14 mishandles negative values of sk_sndbuf and sk_rcvbuf, which allows local users to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact by leveraging the CAP_NET_ADMIN capability for a crafted setsockopt system call with the (1) SO_SNDBUFFORCE or (2) SO_RCVBUFFORCE option. (CVE-2016-9793)
A flaw was found in the Linux networking subsystem where a local attacker with CAP_NET_ADMIN capabilities could cause an out of bounds read by creating a smaller-than-expected ICMP header and sending to its destination via sendto(). (CVE-2016-8399)
Algorithms not compatible with mcryptd could be spawned by mcryptd with a direct crypto_alloc_tfm invocation using a “mcryptd(alg)” name construct. This causes mcryptd to crash the kernel if an arbitrary “alg” is incompatible and not intended to be used with mcryptd. (CVE-2016-10147)
(Updated on 2017-01-19: CVE-2016-8399 was fixed in this release but was previously not part of this errata.)
(Updated on 2017-02-22: CVE-2016-10147 was fixed in this release but was previously not part of this errata.)
Affected Packages:
kernel
Issue Correction:
Run yum update kernel to update your system. You will need to reboot your system in order for the new kernel to be running.
New Packages:
i686:
kernel-debuginfo-4.4.39-34.54.amzn1.i686
kernel-headers-4.4.39-34.54.amzn1.i686
kernel-tools-debuginfo-4.4.39-34.54.amzn1.i686
kernel-tools-4.4.39-34.54.amzn1.i686
kernel-debuginfo-common-i686-4.4.39-34.54.amzn1.i686
kernel-4.4.39-34.54.amzn1.i686
kernel-devel-4.4.39-34.54.amzn1.i686
kernel-tools-devel-4.4.39-34.54.amzn1.i686
perf-debuginfo-4.4.39-34.54.amzn1.i686
perf-4.4.39-34.54.amzn1.i686
noarch:
kernel-doc-4.4.39-34.54.amzn1.noarch
src:
kernel-4.4.39-34.54.amzn1.src
x86_64:
perf-4.4.39-34.54.amzn1.x86_64
kernel-tools-debuginfo-4.4.39-34.54.amzn1.x86_64
kernel-4.4.39-34.54.amzn1.x86_64
kernel-devel-4.4.39-34.54.amzn1.x86_64
kernel-headers-4.4.39-34.54.amzn1.x86_64
kernel-tools-4.4.39-34.54.amzn1.x86_64
kernel-debuginfo-common-x86_64-4.4.39-34.54.amzn1.x86_64
kernel-tools-devel-4.4.39-34.54.amzn1.x86_64
perf-debuginfo-4.4.39-34.54.amzn1.x86_64
kernel-debuginfo-4.4.39-34.54.amzn1.x86_64
Red Hat: CVE-2016-10147, CVE-2016-8399, CVE-2016-8650, CVE-2016-9576, CVE-2016-9793
Mitre: CVE-2016-10147, CVE-2016-8399, CVE-2016-8650, CVE-2016-9576, CVE-2016-9793
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Amazon Linux | 1 | i686 | kernel-debuginfo | < 4.4.39-34.54.amzn1 | kernel-debuginfo-4.4.39-34.54.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | kernel-headers | < 4.4.39-34.54.amzn1 | kernel-headers-4.4.39-34.54.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | kernel-tools-debuginfo | < 4.4.39-34.54.amzn1 | kernel-tools-debuginfo-4.4.39-34.54.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | kernel-tools | < 4.4.39-34.54.amzn1 | kernel-tools-4.4.39-34.54.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | kernel-debuginfo-common-i686 | < 4.4.39-34.54.amzn1 | kernel-debuginfo-common-i686-4.4.39-34.54.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | kernel | < 4.4.39-34.54.amzn1 | kernel-4.4.39-34.54.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | kernel-devel | < 4.4.39-34.54.amzn1 | kernel-devel-4.4.39-34.54.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | kernel-tools-devel | < 4.4.39-34.54.amzn1 | kernel-tools-devel-4.4.39-34.54.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | perf-debuginfo | < 4.4.39-34.54.amzn1 | perf-debuginfo-4.4.39-34.54.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | perf | < 4.4.39-34.54.amzn1 | perf-4.4.39-34.54.amzn1.i686.rpm |
7.8 High
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
7.6 High
CVSS2
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:H/Au:N/C:C/I:C/A:C
0.002 Low
EPSS
Percentile
60.6%