CVE-2016-6187: linux linux_kernel
Vulnerability summary
CVE-2016-6187 is a high (CVSS 7.8) vulnerability in linux linux_kernel. EPSS estimates a 2.40% chance of exploitation in the next 30 days, higher than 84% of scored vulnerabilities. 1 public exploit is recorded.
Public exploit (exploit-database, 16-10-2016)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 06-08-2016PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
The apparmor_setprocattr function in security/apparmor/lsm.c in the Linux kernel before 4.6.5 does not validate the buffer size, which allows local users to gain privileges by triggering an AppArmor setprocattr hook.
CVSS metrics
5 scores · 3 sources · 3 versions- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
2.40%
Chance of exploitation in the next 30 days
Percentile
84%
Versus all other CVEs
30-day change
No change 0.00 pp
From 2.40% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundLinux Kernel < 4.5.1 - Off-By-One (PoC)
Maturity: poc
Weaknesses
CWE · root cause- CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary.
- CWE-264Permissions, Privileges, and Access ControlsWeaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control.
Affected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Debian1 product
- linux< 4.6.4-1
Linux1 product
- linux_kernel≥ 4.5, < 4.6.5
Ubuntu1 product
- linux-hwe< 4.8.0-36.36~16.04.1
3 vendors · 3 products
References
11 links- github.com/torvalds/linux/commit/30a46a4647fd1df9cf52e43bf467f0d9265096caX Refsource CONFIRMIssue TrackingPatch
