CVE-2018-7191

CVSS V2 Medium 4.9 CVSS V3 Medium 5.5
Description
In the tun subsystem in the Linux kernel before 4.13.14, dev_get_valid_name is not called before register_netdevice. This allows local users to cause a denial of service (NULL pointer dereference and panic) via an ioctl(TUNSETIFF) call with a dev name containing a / character. This is similar to CVE-2013-4343.
Overview
  • CVE ID
  • CVE-2018-7191
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Modified
  • Published Version
  • 2019-05-17T05:29:00
  • Last Modified Date
  • 2019-05-31T12:29:01
Weakness Enumerations
CWE URL
CWE-476 http://cwe.mitre.org/data/definitions/476.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 4.13.14
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:L/Au:N/C:N/I:N/A:C
  • Access Vector
  • LOCAL
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 4.9
  • Severity
  • MEDIUM
  • Exploitability Score
  • 3.9
  • Impact Score
  • 6.9
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 5.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 1.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://github.com/torvalds/linux/commit/5c25f65fd1e42685f7ccd80e0621829c105785d9 Patch Third Party Advisory
https://github.com/torvalds/linux/commit/0ad646c81b2182f7fa67ec0c8c825e0ee165696d Patch Third Party Advisory
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5c25f65fd1e42685f7ccd80e0621829c105785d9 Patch Vendor Advisory
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0ad646c81b2182f7fa67ec0c8c825e0ee165696d Patch Third Party Advisory Vendor Advisory
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.14 Release Notes Vendor Advisory
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1748846 Patch Third Party Advisory
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1743792 Exploit Third Party Advisory
http://www.securityfocus.com/bid/108380
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00071.html
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00048.html
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2018-7191
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7191
History
Created Old Value New Value Data Type Notes
2022-05-10 07:51:11 Added to TrackCVE
2022-12-03 20:51:53 2019-05-17T05:29Z 2019-05-17T05:29:00 CVE Published Date updated
2022-12-03 20:51:53 2019-05-31T12:29:01 CVE Modified Date updated
2022-12-03 20:51:53 Modified Vulnerability Status updated