CVE-2015-7891

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.

CVSS v3.0 7.0 HIGH
CVSS v2.0 4.4 MEDIUM

7.0^/10

CVSS v3.0 : HIGH

V3 Legend

Vector : AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitability : 1.0 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

4.4^/10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:L/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 3.4 / Impact : 6.4

Access Vector LOCAL

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

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

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:samsung:samsung_mobile:5.1:::::::*
	cpe:2.3:o:samsung:samsung_mobile:5.0:::::::*

Information

Published : 2017-08-02 12:29

Updated : 2017-08-04 09:21

NVD link : CVE-2015-7891

Mitre link : CVE-2015-7891

JSON object : View

CWE

CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Products Affected

samsung

samsung_mobile

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7.0 /10