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
7.2 High
CVSS2
Access Vector
LOCAL
Access 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
0.001 Low
EPSS
Percentile
42.6%
Issue Overview:
The skbs processed by ip_cmsg_recv() are not guaranteed to be linear (e.g. when sending UDP packets over loopback with MSGMORE). Using csum_partial() on potentially the whole skb len is dangerous; instead be on the safe side and use skb_checksum(). This may lead to an infoleak as the kernel memory may be checksummed and sent as part of the packet. (CVE-2017-6347)
It was discovered that xfrm_replay_verify_len(), as called by xfrm_new_ae(), did not verify that the user-specified replay_window was within the replay state buffer. This allowed for out-of-bounds reads and writes of kernel memory.(CVE-2017-7184)
Affected Packages:
kernel
Issue Correction:
Run yum update kernel to update your system.
New Packages:
i686:
kernel-tools-devel-4.4.51-40.60.amzn1.i686
kernel-devel-4.4.51-40.60.amzn1.i686
kernel-headers-4.4.51-40.60.amzn1.i686
kernel-tools-debuginfo-4.4.51-40.60.amzn1.i686
kernel-4.4.51-40.60.amzn1.i686
kernel-debuginfo-4.4.51-40.60.amzn1.i686
perf-4.4.51-40.60.amzn1.i686
kernel-debuginfo-common-i686-4.4.51-40.60.amzn1.i686
kernel-tools-4.4.51-40.60.amzn1.i686
perf-debuginfo-4.4.51-40.60.amzn1.i686
noarch:
kernel-doc-4.4.51-40.60.amzn1.noarch
src:
kernel-4.4.51-40.60.amzn1.src
x86_64:
kernel-debuginfo-4.4.51-40.60.amzn1.x86_64
kernel-tools-4.4.51-40.60.amzn1.x86_64
perf-debuginfo-4.4.51-40.60.amzn1.x86_64
kernel-4.4.51-40.60.amzn1.x86_64
kernel-headers-4.4.51-40.60.amzn1.x86_64
kernel-tools-devel-4.4.51-40.60.amzn1.x86_64
kernel-devel-4.4.51-40.60.amzn1.x86_64
perf-4.4.51-40.60.amzn1.x86_64
kernel-tools-debuginfo-4.4.51-40.60.amzn1.x86_64
kernel-debuginfo-common-x86_64-4.4.51-40.60.amzn1.x86_64
Red Hat: CVE-2017-6347, CVE-2017-7184
Mitre: CVE-2017-6347, CVE-2017-7184
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Amazon Linux | 1 | i686 | kernel-tools-devel | < 4.4.51-40.60.amzn1 | kernel-tools-devel-4.4.51-40.60.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | kernel-devel | < 4.4.51-40.60.amzn1 | kernel-devel-4.4.51-40.60.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | kernel-headers | < 4.4.51-40.60.amzn1 | kernel-headers-4.4.51-40.60.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | kernel-tools-debuginfo | < 4.4.51-40.60.amzn1 | kernel-tools-debuginfo-4.4.51-40.60.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | kernel | < 4.4.51-40.60.amzn1 | kernel-4.4.51-40.60.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | kernel-debuginfo | < 4.4.51-40.60.amzn1 | kernel-debuginfo-4.4.51-40.60.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | perf | < 4.4.51-40.60.amzn1 | perf-4.4.51-40.60.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | kernel-debuginfo-common-i686 | < 4.4.51-40.60.amzn1 | kernel-debuginfo-common-i686-4.4.51-40.60.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | kernel-tools | < 4.4.51-40.60.amzn1 | kernel-tools-4.4.51-40.60.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | perf-debuginfo | < 4.4.51-40.60.amzn1 | perf-debuginfo-4.4.51-40.60.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
7.2 High
CVSS2
Access Vector
LOCAL
Access 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
0.001 Low
EPSS
Percentile
42.6%