Vulnerability CVE-2018-7191


Published: 2019-05-17

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.

Type:

CWE-476

(NULL Pointer Dereference)

Vendor: Linux
Product: Linux kernel 
Version:
4.9.99
4.9.98
4.9.97
4.9.96
4.9.95
4.9.94
4.9.93
4.9.92
4.9.91
4.9.90
4.9.9
4.9.89
4.9.88
4.9.87
4.9.86
4.9.85
4.9.84
4.9.83
4.9.82
4.9.81
4.9.80
4.9.8
4.9.79
4.9.78
4.9.77
4.9.76
4.9.75
4.9.74
4.9.73
4.9.72
4.9.71
4.9.70
4.9.7
4.9.69
4.9.68
4.9.67
4.9.66
4.9.65
4.9.64
4.9.63
4.9.62
4.9.61
4.9.60
4.9.6
4.9.59
4.9.58
4.9.57
4.9.56
4.9.55
4.9.54
4.9.53
4.9.52
4.9.51
4.9.50
4.9.5
4.9.49
4.9.48
4.9.47
4.9.46
4.9.45
4.9.44
4.9.43
4.9.42
4.9.41
4.9.40
4.9.4
4.9.39
4.9.38
4.9.37
4.9.36
4.9.35
4.9.34
4.9.33
4.9.32
4.9.31
4.9.30
4.9.3
4.9.29
4.9.28
4.9.27
4.9.26
4.9.25
4.9.24
4.9.23
4.9.22
4.9.21
4.9.20
4.9.2
4.9.19
4.9.18
4.9.17
4.9.16
4.9.15
4.9.144
4.9.143
4.9.142
4.9.141
4.9.140
4.9.14
4.9.139
See more versions on NVD

CVSS2 => (AV:L/AC:L/Au:N/C:N/I:N/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.9/10
6.9/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Complete

 References:
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00071.html
http://www.securityfocus.com/bid/108380
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1743792
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1748846
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.14
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0ad646c81b2182f7fa67ec0c8c825e0ee165696d
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5c25f65fd1e42685f7ccd80e0621829c105785d9
https://github.com/torvalds/linux/commit/0ad646c81b2182f7fa67ec0c8c825e0ee165696d
https://github.com/torvalds/linux/commit/5c25f65fd1e42685f7ccd80e0621829c105785d9

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