CVE-2015-7891

Name: CVE-2015-7891
Creator: NVD / NIST
Published: 2017-08-02T19:29:00.553+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.67%

Last modified Jun 17, 2026

CVE-2015-7891 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.67% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

0.67%

47.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-362

Affected Software

Vendor	Product	Versions
Samsung	Samsung Mobile	5.0
Samsung	Samsung Mobile	5.1

References

http://packetstormsecurity.com/files/134107/Samsung-Fimg2d-FIMG2D_BITBLT_BLIT-Ioctl-Concurrency-Flaw.htmlExploit, Third Party Advisory, VDB Entry
http://security.samsungmobile.com/smrupdate.html#SMR-OCT-2015Vendor Advisory
http://www.securityfocus.com/bid/77335Third Party Advisory, VDB Entry
https://bugs.chromium.org/p/project-zero/issues/detail?id=492Issue Tracking, Third Party Advisory
https://www.exploit-db.com/exploits/38557/Exploit, Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/134107/Samsung-Fimg2d-FIMG2D_BITBLT_BLIT-Ioctl-Concurrency-Flaw.htmlExploit, Third Party Advisory, VDB Entry
http://security.samsungmobile.com/smrupdate.html#SMR-OCT-2015Vendor Advisory
http://www.securityfocus.com/bid/77335Third Party Advisory, VDB Entry
https://bugs.chromium.org/p/project-zero/issues/detail?id=492Issue Tracking, Third Party Advisory
https://www.exploit-db.com/exploits/38557/Exploit, Third Party Advisory, VDB Entry

Timeline

Published: Aug 2, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-7891?

How severe is CVE-2015-7891?

Severity scoring for CVE-2015-7891 is pending analysis. The EPSS model estimates a 0.67% probability of exploitation in the next 30 days.

How do I fix CVE-2015-7891?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-7891?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST