CVE-2015-7891 json
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) a…
published 2017-08-02 9 y ago modified 2026-06-17 4 mo ago also EUVD-2015-7789
- cvss
- 7.0
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 52%
- public exploits
- 1
- Exploit-DB
Summary
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.
Timeline
- First public exploit (EDB-38557)
- Published
Exploit prediction
0.67% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- EDB-38557 Samsung fimg2d - FIMG2D_BITBLT_BLIT ioctl Concurrency Flaw dos, 2015-10-28
- packetstormsecurity.com http://packetstormsecurity.com/files/134107/Samsung-Fimg2d-FIMG2D_BITBLT_BLIT-Ioctl-Concurrency-Flaw.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 7.0 | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 4.4 | AV:L/AC:M/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization
References
-
exploit-db.com
/exploits/38557/
exploit, third-party-advisory, vdb-entry
-
packetstormsecurity.com
/files/134107/Samsung-Fimg2d-FIMG2D_BITBLT_BLIT-Ioctl-Concurrency-Flaw.html
exploit, third-party-advisory, vdb-entry
-
security.samsungmobile.com
/smrupdate.html#SMR-OCT-2015
vendor-advisory
-
securityfocus.com
/bid/77335
vdb-entry, third-party-advisory
-
bugs.chromium.org
/p/project-zero/issues/detail?id=492
issue-tracking, third-party-advisory
Sources
- CVE List CVE-2015-7891
- NVD CVE-2015-7891
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.