Bug 1709837 (CVE-2019-11884) - CVE-2019-11884 kernel: sensitive information disclosure from kernel stack memory via HIDPCONNADD command
Summary: CVE-2019-11884 kernel: sensitive information disclosure from kernel stack mem...
Keywords:
Status: NEW
Alias: CVE-2019-11884
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1723652 1723653 1723654 1723655 1723657 1709838 1723651
Blocks: 1709839
TreeView+ depends on / blocked
 
Reported: 2019-05-14 11:58 UTC by Dhananjay Arunesh
Modified: 2019-09-29 15:13 UTC (History)
43 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in the Linux kernel's implementation of the Bluetooth Human Interface Device Protocol (HIDP). A local attacker with access permissions to the Bluetooth device can issue an IOCTL which will trigger the do_hidp_sock_ioctl function in net/bluetooth/hidp/sock.c.c. This function can leak potentially sensitive information from the kernel stack memory via a HIDPCONNADD command because a name field may not be correctly NULL terminated.
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Environment:
Last Closed:


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Description Dhananjay Arunesh 2019-05-14 11:58:36 UTC
A flaw was found in the kernels implementation of the bluetooth HIDP (Human Interface Device Protocol).  A local attacker with access permissions to the bluetooth device can issue an IOCTL which will trigger the do_hidp_sock_ioctl function in net/bluetooth/hidp/sock.c.c.  This function can potentially leak potentially sensitive information from kernel stack memory via a HIDPCONNADD command, because a name field may not correctly NULL terminated.

Reference:
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.15

Upstream commit:
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a1616a5ac99ede5d605047a9012481ce7ff18b16
https://github.com/torvalds/linux/commit/a1616a5ac99ede5d605047a9012481ce7ff18b16

Comment 1 Dhananjay Arunesh 2019-05-14 11:58:55 UTC
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1709838]

Comment 4 Wade Mealing 2019-06-25 05:31:05 UTC
This flaw is rated as a Moderate as it requires the local attacker to have permissions to the bluetooth devices and also is an infoleak with no privilege escalation known at this time.


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