CVE-2014-9883 - Integer Underflow (Wrap or Wraparound)

Severity

68%

Complexity

86%

Confidentiality

106%

Integer overflow in drivers/char/diag/diag_dci.c in the Qualcomm components in Android before 2016-08-05 on Nexus 5 and 7 (2013) devices allows attackers to gain privileges or obtain sensitive information via a crafted application, aka Android internal bug 28769912 and Qualcomm internal bug CR565160.

Integer overflow in drivers/char/diag/diag_dci.c in the Qualcomm components in Android before 2016-08-05 on Nexus 5 and 7 (2013) devices allows attackers to gain privileges or obtain sensitive information via a crafted application, aka Android internal bug 28769912 and Qualcomm internal bug CR565160.

CVSS 3.0 Base Score 7.8. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).

CVSS 2.0 Base Score 6.8. CVSS Attack Vector: network. CVSS Attack Complexity: medium. CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:P).

Demo Examples

Integer Underflow (Wrap or Wraparound)

CWE-191

The following example subtracts from a 32 bit signed integer.


               
}
return 0;

The example has an integer underflow. The value of i is already at the lowest negative value possible, so after subtracting 1, the new value of i is 2147483647.

Overview

First reported 8 years ago

2016-08-06 10:59:00

Last updated 8 years ago

2016-11-28 19:15:00

Affected Software

Google Android Operating System

References

http://source.android.com/security/bulletin/2016-08-01.html

Vendor Advisory

92219

https://source.codeaurora.org/quic/la/kernel/msm/commit/?id=cbf79a67348e48557c0d0bb9bc58391b3f84bc46

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