漏洞类别：RedHat
漏洞等级： 
漏洞信息
The kernel packages contain the Linux kernel, the core of any Linux operating system.
It was found that the timer functionality in the Linux kernel ALSA subsystem is prone to a race condition between read and ioctl system call handlers, resulting in an uninitialized memory disclosure to user space. A local user could use this flaw to read information belonging to other users. (CVE-2017-1000380, Moderate)
Affected Products:
Red Hat Enterprise Linux Server 7 x86_64
Red Hat Enterprise Linux Server - Extended Update Support 7.4 x86_64
Red Hat Enterprise Linux Server - AUS 7.4 x86_64
Red Hat Enterprise Linux Workstation 7 x86_64
Red Hat Enterprise Linux Desktop 7 x86_64
Red Hat Enterprise Linux for IBM z Systems 7 s390x
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.4 s390x
Red Hat Enterprise Linux for Power, big endian 7 ppc64
Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.4 ppc64
Red Hat Enterprise Linux for Scientific Computing 7 x86_64
Red Hat Enterprise Linux EUS Compute Node 7.4 x86_64
Red Hat Enterprise Linux for Power, little endian 7 ppc64le
Red Hat Enterprise Linux for Power, little endian - Extended Update Support 7.4 ppc64le
Red Hat Virtualization Host 4 x86_64
Red Hat Enterprise Linux Server - TUS 7.4 x86_64
Red Hat Enterprise Linux Server (for IBM Power LE) - 4 Year Extended Update Support 7.4 ppc64le
Red Hat Enterprise Linux Server - 4 Year Extended Update Support 7.4 x86_64
漏洞危害
A local user could use this flaw to read information belonging to other users.
解决方案
Upgrade to the latest packages which contain a patch. Refer to Applying Package Updates to RHEL system for details.
Refer to Red Hat security advisory RHSA-2017:3315 to address this issue and obtain more information.
Patch:
Following are links for downloading patches to fix the vulnerabilities:
0daybank
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