Vulnerability CVE-2017-18224


Published: 2018-03-11   Modified: 2018-03-12

Description:
In the Linux kernel before 4.15, fs/ocfs2/aops.c omits use of a semaphore and consequently has a race condition for access to the extent tree during read operations in DIRECT mode, which allows local users to cause a denial of service (BUG) by modifying a certain e_cpos field.

Type:

CWE-362

Vendor: Linux
Product: Linux kernel 
Version:
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
4.9.14
4.9.13
4.9.12
4.9.11
4.9.10
4.9.1
4.9
4.8.9
4.8.8
4.8.7
4.8.6
See more versions on NVD

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
1.9/10
2.9/10
3.4/10
Exploit range
Attack complexity
Authentication
Local
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial

 References:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3e4c56d41eef5595035872a2ec5a483f42e8917f
http://www.securityfocus.com/bid/103353
https://github.com/torvalds/linux/commit/3e4c56d41eef5595035872a2ec5a483f42e8917f
https://www.debian.org/security/2018/dsa-4188

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