Vulnerability CVE-2017-1000363


Published: 2017-07-17

Description:
Linux drivers/char/lp.c Out-of-Bounds Write. Due to a missing bounds check, and the fact that parport_ptr integer is static, a 'secure boot' kernel command line adversary (can happen due to bootloader vulns, e.g. Google Nexus 6's CVE-2016-10277, where due to a vulnerability the adversary has partial control over the command line) can overflow the parport_nr array in the following code, by appending many (>LP_NO) 'lp=none' arguments to the command line.

Type:

CWE-787

Vendor: Debian
Product: Debian linux 
Version: 8.0;
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
4.9.89
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
4.9.79
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
4.9.69
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
4.9.59
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
4.9.49
4.9.48
4.9.47
4.9.46
4.9.45
4.9.111
4.9.110
4.9.109
4.9.108
4.9.107
4.9.106
4.9.105
4.9.104
4.9.103
4.9.102
4.9.101
4.9.100
4.9
4.8
4.7.8
4.7.7
4.7.5
4.7.2
4.7.10
4.7.1
4.7
4.5.6
4.5
4.4.99
4.4.98
4.4.97
4.4.96
4.4.95
4.4.94
4.4.93
4.4.92
4.4.91
4.4.90
4.4.89
4.4.88
4.4.87
4.4.86
4.4.85
4.4.84
4.4.139
4.4.138
4.4.137
4.4.136
4.4.135
See more versions on NVD

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.2/10
10/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete

 References:
http://www.debian.org/security/2017/dsa-3945
http://www.securityfocus.com/bid/98651
https://alephsecurity.com/vulns/aleph-2017023

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