CVE-2016-6187
The apparmor_setprocattr function in security/apparmor/lsm.c in the Linux kernel before 4.6.5...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2016-6187- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.2 High
AV:L/AC:L/Au:N/C:C/I:C/A:C - Weakness
- CWE-119, CWE-264
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2016-6187- Updated
- 2026-11-02
EUVDEUVD-2016-7120 No score
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.
- Record
EUVD-2016-7120- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-f2rr-m524-j23q
The apparmor_setprocattr function in security/apparmor/lsm.c in the Linux kernel before 4.6.5...
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.
- Record
GHSA-f2rr-m524-j23q- CVSS 3.0
- 7.8 High
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-119
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2016-6187- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2016-6187
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.
- Record
DEBIAN-CVE-2016-6187- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2016-6187
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.
- Record
UBUNTU-CVE-2016-6187- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 3.0
- 7.8 High
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVopenSUSE-SU-2024:10128-1 No score
kernel-debug-4.8.13-1.1 on GA media
These are all security issues fixed in the kernel-debug-4.8.13-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:10128-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
linuxDebian:12 |
before 4.6.4-1 | 4.6.4-1 |
linuxDebian:13 |
before 4.6.4-1 | 4.6.4-1 |
linuxDebian:14 |
before 4.6.4-1 | 4.6.4-1 |
kernel-sourceopenSUSE:Tumbleweed From an advisory covering 82 CVEs |
before 4.8.13-1.1 | 4.8.13-1.1 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Linux Kernel < 4.5.1 - Off-By-One (PoC) | 2016-10-16 |
| PoC in GitHub | vnik5287/cve-2016-6187-poc | 2019-07-23 |
| PoC in GitHub | Milo-D/CVE-2016-6187_LPE | 2024-05-12 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, exploits, facts | ||
| affected | ||
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD, OSV, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2016-6187 is a high vulnerability (CVSS 7.8) in Linux Kernel, published August 6, 2016. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 2.40%, the 84th percentile. Fixed in linux 4.6.4-1.
References
github.com/torvalds/linux/commit/30a46a4647fd1df9cf52e43bf467f0d9265096ca
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit?id=30a46a4647fd1df9cf52e43bf467f0d9265096ca
kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.5
openwall.com/lists/oss-security/2016/07/09/2
marc.info?l=linux-kernel&m=146793642811929&w=2
bugzilla.redhat.com/show_bug.cgi?id=1354383
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securityfocus.com/bid/91696
nvd.nist.gov/vuln/detail/CVE-2016-6187
security-tracker.debian.org/tracker/CVE-2016-6187
ubuntu.com/security/CVE-2016-6187
cve.org/CVERecord?id=CVE-2016-6187
suse.com/security/cve/CVE-2009-3939