Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

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.

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.5, requiring local system access to exploit with relatively low complexity without requiring user interaction requiring only low-level privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 8 products from linux, from debian, from redhat and 5 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2018, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2018-07-27T19:29:00.267

Last Modified

2024-11-21T03:23:50.630

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 5.5 (MEDIUM)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:N/I:N/A:C

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: COMPLETE

Exploitability Score

3.9

Impact Score

6.9

Weaknesses

Type: Secondary
CWE-193
Type: Secondary
CWE-682

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	linux	linux_kernel	< 4.9.10	Yes
Operating System	debian	debian_linux	8.0	Yes
Operating System	redhat	enterprise_linux	7.0	Yes
Operating System	redhat	enterprise_linux_desktop	7.0	Yes
Operating System	redhat	enterprise_linux_server	7.0	Yes
Operating System	redhat	enterprise_linux_server_aus	7.3	Yes
Operating System	redhat	enterprise_linux_server_aus	7.4	Yes
Operating System	redhat	enterprise_linux_server_eus	7.3	Yes
Operating System	redhat	enterprise_linux_server_eus	7.4	Yes
Operating System	redhat	enterprise_linux_server_eus	7.5	Yes
Operating System	redhat	enterprise_linux_workstation	7.0	Yes

References

http://www.securityfocus.com/bid/96272 Third Party Advisory, VDB Entry ([email protected])
https://access.redhat.com/errata/RHSA-2017:0931 Third Party Advisory ([email protected])
https://access.redhat.com/errata/RHSA-2017:0932 Third Party Advisory ([email protected])
https://access.redhat.com/errata/RHSA-2017:0933 Third Party Advisory ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2618 Issue Tracking, Patch, Third Party Advisory ([email protected])
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=0c461cb727d146c9ef2d3e86214f498b78b7d125 Patch, Vendor Advisory ([email protected])
https://marc.info/?l=selinux&m=148588165923772&w=2 Patch, Third Party Advisory ([email protected])
https://www.debian.org/security/2017/dsa-3791 Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/96272 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2017:0931 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2017:0932 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2017:0933 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2618 Issue Tracking, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=0c461cb727d146c9ef2d3e86214f498b78b7d125 Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://marc.info/?l=selinux&m=148588165923772&w=2 Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2017/dsa-3791 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For linux's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.