Medium severity · published Jul 27, 2018
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
5.5
CVSS
0.5%
EPSS
No
On KEV
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 vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 40% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
before 4.9.10 · source: NVD
DL
Debian Linux · Debian
8.0 · source: NVD
EL
Enterprise Linux · Redhat
7.0 · source: NVD
EL
Enterprise Linux Desktop · Redhat
7.0 · source: NVD
EL
Enterprise Linux Server · Redhat
7.0 · source: NVD
EL
Enterprise Linux Server Aus · Redhat
7.3; 7.4 · source: NVD
EL
Enterprise Linux Server Eus · Redhat
7.3; 7.4; 7.5 · source: NVD
EL
Enterprise Linux Workstation · Redhat
7.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-2618
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-2618
Third Party Advisory
http://www.securityfocus.com/bid/96272
Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:0931
Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:0932
Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:0933
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2618
Patch
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=0c461cb727d146c9ef2d3e86214f498b78b7d125
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