Bug 1624507 (CVE-2018-16276) - CVE-2018-16276 kernel: incorrect bounds checking in yurex_read in drivers/usb/misc/yurex.c
Summary: CVE-2018-16276 kernel: incorrect bounds checking in yurex_read in drivers/usb...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2018-16276
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:
: CVE-2018-19270 (view as bug list)
Depends On: 1624508
Blocks: 1624509 1651063
TreeView+ depends on / blocked
 
Reported: 2018-08-31 20:58 UTC by Laura Pardo
Modified: 2021-12-10 17:16 UTC (History)
51 users (show)

Fixed In Version: kernel 4.17.7
Doc Type: If docs needed, set a value
Doc Text:
An out-of-bounds access issue was discovered in yurex_read() in drivers/usb/misc/yurex.c in the Linux kernel. A local attacker could use user access read/writes with incorrect bounds checking in the yurex USB driver to crash the kernel or potentially escalate privileges.
Clone Of:
Environment:
Last Closed: 2018-09-03 15:05:58 UTC
Embargoed:

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Description Laura Pardo 2018-08-31 20:58:15 UTC 
An out-of-bound access issue was discovered in yurex_read() in drivers/usb/misc/yurex.c in the Linux kernel. A local attacker could use user access read/writes with incorrect bounds checking in the yurex USB driver to crash the kernel or potentially escalate privileges.

References:

https://marc.info/?t=153089016500001&r=1&w=2

https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.17.7

An upstream patch:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f1e255d60ae66a9f672ff9a207ee6cd8e33d2679
Comment 1 Laura Pardo 2018-08-31 20:58:43 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1624508]
Comment 2 Justin M. Forbes 2018-08-31 21:26:35 UTC 
This was fixed for Fedora with the 4.17.7 stable updates.
Comment 5 Vladis Dronov 2018-09-03 15:05:58 UTC 
Note:

No Red Hat products are vulnerable to this flaw, as the yurex driver is not shipped.
Comment 6 Joshua Padman 2018-11-26 03:32:02 UTC 
*** Bug 1651061 has been marked as a duplicate of this bug. ***
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