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Medium: kernel

Description

**Issue Overview:** The sg implementation in the Linux kernel did not properly restrict write operations in situations where the KERNEL_DS option is set, 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, related to block/bsg.c and drivers/scsi/sg.c. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-9576. **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-tools-4.4.41-36.55.amzn1.i686     perf-4.4.41-36.55.amzn1.i686     perf-debuginfo-4.4.41-36.55.amzn1.i686     kernel-debuginfo-4.4.41-36.55.amzn1.i686     kernel-tools-debuginfo-4.4.41-36.55.amzn1.i686     kernel-devel-4.4.41-36.55.amzn1.i686     kernel-4.4.41-36.55.amzn1.i686     kernel-tools-devel-4.4.41-36.55.amzn1.i686     kernel-debuginfo-common-i686-4.4.41-36.55.amzn1.i686     kernel-headers-4.4.41-36.55.amzn1.i686 noarch:     kernel-doc-4.4.41-36.55.amzn1.noarch src:     kernel-4.4.41-36.55.amzn1.src x86_64:     perf-4.4.41-36.55.amzn1.x86_64     kernel-devel-4.4.41-36.55.amzn1.x86_64     perf-debuginfo-4.4.41-36.55.amzn1.x86_64     kernel-tools-4.4.41-36.55.amzn1.x86_64     kernel-debuginfo-4.4.41-36.55.amzn1.x86_64     kernel-headers-4.4.41-36.55.amzn1.x86_64     kernel-tools-debuginfo-4.4.41-36.55.amzn1.x86_64     kernel-debuginfo-common-x86_64-4.4.41-36.55.amzn1.x86_64     kernel-4.4.41-36.55.amzn1.x86_64     kernel-tools-devel-4.4.41-36.55.amzn1.x86_64 ### Additional References Red Hat: [CVE-2016-10088](<https://access.redhat.com/security/cve/CVE-2016-10088>) Mitre: [CVE-2016-10088](<https://vulners.com/cve/CVE-2016-10088>)


Affected Package


OS OS Version Package Name Package Version
Amazon Linux 1 kernel-tools 4.4.41-36.55.amzn1
Amazon Linux 1 perf 4.4.41-36.55.amzn1
Amazon Linux 1 perf-debuginfo 4.4.41-36.55.amzn1
Amazon Linux 1 kernel-debuginfo 4.4.41-36.55.amzn1
Amazon Linux 1 kernel-tools-debuginfo 4.4.41-36.55.amzn1
Amazon Linux 1 kernel-devel 4.4.41-36.55.amzn1
Amazon Linux 1 kernel 4.4.41-36.55.amzn1
Amazon Linux 1 kernel-tools-devel 4.4.41-36.55.amzn1
Amazon Linux 1 kernel-debuginfo-common-i686 4.4.41-36.55.amzn1
Amazon Linux 1 kernel-headers 4.4.41-36.55.amzn1
Amazon Linux 1 kernel-doc 4.4.41-36.55.amzn1
Amazon Linux 1 kernel 4.4.41-36.55.amzn1
Amazon Linux 1 perf 4.4.41-36.55.amzn1
Amazon Linux 1 kernel-devel 4.4.41-36.55.amzn1
Amazon Linux 1 perf-debuginfo 4.4.41-36.55.amzn1
Amazon Linux 1 kernel-tools 4.4.41-36.55.amzn1
Amazon Linux 1 kernel-debuginfo 4.4.41-36.55.amzn1
Amazon Linux 1 kernel-headers 4.4.41-36.55.amzn1
Amazon Linux 1 kernel-tools-debuginfo 4.4.41-36.55.amzn1
Amazon Linux 1 kernel-debuginfo-common-x86_64 4.4.41-36.55.amzn1
Amazon Linux 1 kernel 4.4.41-36.55.amzn1
Amazon Linux 1 kernel-tools-devel 4.4.41-36.55.amzn1

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