Bug 1535199 (CVE-2017-13216) - CVE-2017-13216 kernel: escalation of privileges (EoP) in ashmem_ioctl function in drivers/staging/android/ashmen.c
Summary: CVE-2017-13216 kernel: escalation of privileges (EoP) in ashmem_ioctl functio...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2017-13216
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: 1535200
Blocks: 1535203
TreeView+ depends on / blocked
 
Reported: 2018-01-16 20:04 UTC by Laura Pardo
Modified: 2021-01-14 18:27 UTC (History)
43 users (show)

Fixed In Version:
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Last Closed: 2021-01-14 18:27:45 UTC
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Description Laura Pardo 2018-01-16 20:04:34 UTC 
A flaw was found in ashmem_ioctl of ashmem.c, there is an out-of-bounds write due to insufficient locking when accessing asma. This could lead to a local elevation of privilege enabling code execution as a privileged process with no additional execution privileges needed. User interaction is not needed for exploitation.

References:
https://source.android.com/security/bulletin/2018-01-01#asterisk
https://www.exploit-db.com/exploits/43464/
Comment 1 Laura Pardo 2018-01-16 20:06:23 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1535200]
Comment 2 Justin M. Forbes 2018-01-17 12:43:29 UTC 
The ASHMEM driver is not enabled for Fedora.
Comment 3 Wade Mealing 2018-01-24 08:08:30 UTC 
The ASHMEM driver is not enabled in RHEL.

Red Hat Products are not affected by this flaw.
Comment 4 Product Security DevOps Team 2021-01-14 18:27:45 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2017-13216
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