CVE-2015-7891: Race Condition
First published: Wed Aug 02 2017(Updated: )
Race condition in the ioctl implementation in the Samsung Graphics 2D driver (aka /dev/fimg2d) in Samsung devices with Android L(5.0/5.1) allows local users to trigger memory errors by leveraging definition of g2d_lock and g2d_unlock lock macros as no-ops, aka SVE-2015-4598.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Samsung Mobile | =5.0 | |
| Samsung Mobile | =5.1 |
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Reference Links
- http://packetstormsecurity.com/files/134107/Samsung-Fimg2d-FIMG2D_BITBLT_BLIT-Ioctl-Concurrency-Flaw.html
- http://security.samsungmobile.com/smrupdate.html#SMR-OCT-2015
- http://www.securityfocus.com/bid/77335
- https://bugs.chromium.org/p/project-zero/issues/detail?id=492
- https://www.exploit-db.com/exploits/38557/
Frequently Asked Questions
What is the severity of CVE-2015-7891?
CVE-2015-7891 has been classified as a high severity vulnerability due to its potential to allow local users to trigger memory errors.
How do I fix CVE-2015-7891?
To fix CVE-2015-7891, it is recommended to apply the security updates provided by Samsung for affected devices running Android 5.0 and 5.1.
What devices are affected by CVE-2015-7891?
CVE-2015-7891 affects Samsung mobile devices running Android versions 5.0 and 5.1.
What type of vulnerability is CVE-2015-7891?
CVE-2015-7891 is a race condition vulnerability in the Samsung Graphics 2D driver related to ioctl implementation.
Can CVE-2015-7891 be exploited remotely?
CVE-2015-7891 is a local exploitation vulnerability and cannot be exploited remotely.
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