Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 4.9.10 |
| Debian | Debian Linux | 8.0 |
| Redhat | Enterprise Linux | 7.0 |
| Redhat | Enterprise Linux Desktop | 7.0 |
| Redhat | Enterprise Linux Server | 7.0 |
| Redhat | Enterprise Linux Server Aus | 7.3 |
| Redhat | Enterprise Linux Server Eus | 7.3 |
| Redhat | Enterprise Linux Workstation | 7.0 |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/96272Third Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2017:0931Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:0932Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:0933Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2618Issue TrackingPatchThird Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=0c46PatchVendor Advisory
- https://marc.info/?l=selinux&m=148588165923772&w=2PatchThird Party Advisory
- https://www.debian.org/security/2017/dsa-3791Third Party Advisory
- http://www.securityfocus.com/bid/96272Third Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2017:0931Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:0932Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:0933Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2618Issue TrackingPatchThird Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=0c46PatchVendor Advisory
- https://marc.info/?l=selinux&m=148588165923772&w=2PatchThird Party Advisory
FAQ
What is CVE-2017-2618?
CVE-2017-2618 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 a...
How severe is CVE-2017-2618?
CVE-2017-2618 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-2618?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Debian Debian Linux, Redhat Enterprise Linux, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server.