Improper input validation in Google Android
CVE-2016-5340
The is_ashmem_file function in drivers/staging/android/ashmem.c in a certain Qualcomm Innovation Center (QuIC) Android patch for the Linux kernel 3.x mishandles pointer validation within the KGSL Linux Graphics Module, which allows attackers to bypass intended access restrictions by using the /ashmem string as the dentry name.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (20.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 20.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
- ARPSyndicate/cvemon
- kdn111/linux-kernel-exploitation
- khanhdn111/linux-kernel-exploitation
- khanhdz-06/linux-kernel-exploitation
- khanhdz191/linux-kernel-exploitation
- khanhhdz/linux-kernel-exploitation
- khanhhdz06/linux-kernel-exploitation
- khanhnd123/linux-kernel-exploitation
- khnhdz/linux-kernel-exploitation
- knd06/linux-kernel-exploitation
References
- www.codeaurora.org/invalid-path-check-ashmem-memory-file-cve-2016-5340 (Broken Link)
- www.securityfocus.com/bid/92374 (VDB Entry, Third Party Advisory, vdb-entry)
- source.android.com/security/bulletin/2016-10-01.html (Third Party Advisory)
- source.codeaurora.org/quic/la/kernel/msm-3.10/commit/ (Patch, Mailing List, Third Party Advisory)
- www.securitytracker.com/id/1036763 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2016-5340?
- CVE-2016-5340 is a high-severity vulnerability in Google Android, classified under Improper Input Validation. CVSS score: 7.8/10. Published 2016-08-07.
- How severe is CVE-2016-5340?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2016-5340 known to be exploited?
- 15 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.