Scientific Linux Security Update : kernel on SL7.x x86_64

This script is Copyright (C) 2017 Tenable Network Security, Inc.

Synopsis :

The remote Scientific Linux host is missing one or more security

Description :

Security Fix(es) :

- A race condition was found in the Linux kernel, present
since v3.14-rc1 through v4.12. The race happens between
threads of inotify_handle_event() and vfs_rename() while
running the rename operation against the same file. As a
result of the race the next slab data or the slab's free
list pointer can be corrupted with attacker-controlled
data. (CVE-2017-7533, Important)

Bug Fix(es) :

- Previously, direct I/O read operations going past EOF
returned an invalid error number, instead of reading 0
bytes and returning success, if these operations were in
same XFS block with EOF. Consequently, creating multiple
VMs from a Scientific Linux 7.4 template caused all the
VMs to become unresponsive in the 'Image Locked' state.
This update fixes the direct I/O feature of the file
system, and VMs created from a Scientific Linux 7.4
template now work as expected.

- This kernel is signed with the new Secure Boot key.

See also :

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 6.9

Family: Scientific Linux Local Security Checks

Nessus Plugin ID: 102669 ()

Bugtraq ID:

CVE ID: CVE-2017-7533

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