CVE-2017-2618
A flaw was found in the Linux kernel's handling of clearing SELinux attributes on /proc/pid/attr files before 4.9.10. An empty (null) write to this file can crash the system by causing the system to attempt to access unmapped kernel memory.
| Software | From | Fixed in |
|---|---|---|
| linux / linux_kernel | - | 4.9.10 |
| redhat / enterprise_linux_desktop | 7.0 | 7.0.x |
| redhat / enterprise_linux_workstation | 7.0 | 7.0.x |
| redhat / enterprise_linux | 7.0 | 7.0.x |
| redhat / enterprise_linux_server | 7.0 | 7.0.x |
| debian / debian_linux | 8.0 | 8.0.x |
| redhat / enterprise_linux_server_aus | 7.3 | 7.3.x |
| redhat / enterprise_linux_server_aus | 7.4 | 7.4.x |
| redhat / enterprise_linux_server_eus | 7.3 | 7.3.x |
| redhat / enterprise_linux_server_eus | 7.4 | 7.4.x |
| redhat / enterprise_linux_server_eus | 7.5 | 7.5.x |
- http://www.securityfocus.com/bid/96272
- https://access.redhat.com/errata/RHSA-2017:0931
- https://access.redhat.com/errata/RHSA-2017:0932
- https://access.redhat.com/errata/RHSA-2017:0933
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2618
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=0c461cb727d146c9ef2d3e86214f498b78b7d125
- https://marc.info/?l=selinux&m=148588165923772&w=2
- https://www.debian.org/security/2017/dsa-3791
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