The atl2_probe function in drivers/net/ethernet/atheros/atlx/atl2.c in the Linux kernel…
Priority MEDIUM 42CWE-200Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Partial Red Hat: 10 fixed, 1 without a fix
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-200.
Summary
The atl2_probe function in drivers/net/ethernet/atheros/atlx/atl2.c in the Linux kernel through 4.5.2 incorrectly enables scatter/gather I/O, which allows remote attackers to obtain sensitive information from kernel memory by reading packet data.
Why it matters now
EPSS 0.06386 93rd percentileScored 2026-11-07
Fix Partial Red Hat: 2 advisoriesRed Hat: 10 fixed, 1 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:oracle:vm_server:3.3:*:*:*:*:*:*:* | 3.3 | Vulnerable | Oracle |
| cpe:2.3:o:oracle:vm_server:3.4:*:*:*:*:*:*:* | 3.4 | Vulnerable | Oracle |
| cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:* | 12.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* | 14.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:* | 15.10 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* | 16.04 | Vulnerable | Canonical |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | up to 4.5.2 | Vulnerable | Linux |
- cpe:2.3:o:oracle:vm_server:3.3:*:*:*:*:*:*:* Versions 3.3 Vulnerable ·Oracle
- cpe:2.3:o:oracle:vm_server:3.4:*:*:*:*:*:*:* Versions 3.4 Vulnerable ·Oracle
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:* Versions 12.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* Versions 14.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:* Versions 15.10 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* Versions 16.04 Vulnerable ·Canonical
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions up to 4.5.2 Vulnerable ·Linux
Remediation
Red Hat 2 advisories
- RHSA-2016:2584 Released 2016-11-03 · Red Hat rating Importantkernel-rt security, bug fix, and enhancement update
- Red Hat Enterprise Linux for Real Time (v. 7) kernel-rt-3.10.0-514.rt56.420.el7, kernel-rt-debug-3.10.0-514.rt56.420.el7, kernel-rt-debug-devel-3.10.0-514.rt56.420.el7 +4
- Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt-3.10.0-514.rt56.420.el7, kernel-rt-debug-3.10.0-514.rt56.420.el7, kernel-rt-debug-devel-3.10.0-514.rt56.420.el7 +7
- RHSA-2016:2574 Released 2016-11-03 · Red Hat rating Importantkernel security, bug fix, and enhancement update
- Red Hat Enterprise Linux Client (v. 7) kernel-3.10.0-514.el7, kernel-abi-whitelists-3.10.0-514.el7, kernel-debug-3.10.0-514.el7 +8
- Red Hat Enterprise Linux Client Optional (v. 7) kernel-tools-libs-devel-3.10.0-514.el7
- Red Hat Enterprise Linux ComputeNode (v. 7) kernel-3.10.0-514.el7, kernel-abi-whitelists-3.10.0-514.el7, kernel-debug-3.10.0-514.el7 +8
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-tools-libs-devel-3.10.0-514.el7
- Red Hat Enterprise Linux Server (v. 7) kernel-3.10.0-514.el7, kernel-abi-whitelists-3.10.0-514.el7, kernel-bootwrapper-3.10.0-514.el7 +11
- Red Hat Enterprise Linux Server Optional (v. 7) kernel-debug-devel-3.10.0-514.el7, kernel-tools-libs-devel-3.10.0-514.el7
- Red Hat Enterprise Linux Workstation (v. 7) kernel-3.10.0-514.el7, kernel-abi-whitelists-3.10.0-514.el7, kernel-debug-3.10.0-514.el7 +8
- Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-tools-libs-devel-3.10.0-514.el7
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise MRG 2 | Affected | No fix yet |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2016:2574 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2016:2574 |
| Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | RHSA-2016:2574 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2016:2574 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2016:2574 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2016:2574 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2016:2574 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2016:2574 |
| Red Hat Enterprise Linux for Real Time (v. 7) | Fixed | RHSA-2016:2584 |
| Red Hat Enterprise Linux for Real Time for NFV (v. 7) | Fixed | RHSA-2016:2584 |
Not affected: 2 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
Timeline
- 2026-10-02 Threatist record created from CVE-2016-2117
- 2026-10-03 Alias added: GHSA-7qq2-hfpc-p7pq
References
Advisory 15
- USN-3006-1
- USN-3004-1
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f43bfaeddc79effbf3d0fcb53ca477cca66f3db8
- USN-3001-1
- USN-3005-1
- RHSA-2016:2584
- RHSA-2016:2574
- USN-3000-1
- DSA-3607
- USN-3002-1
- USN-2989-1
- USN-3007-1
- USN-3003-1
- USN-2998-1
- https://github.com/torvalds/linux/commit/f43bfaeddc79effbf3d0fcb53ca477cca66f3db8
Other 4
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
- [oss-security] 20160316 CVE-2016-2117 memory disclosure to ethernet due to unchecked scatter/gather IO
- https://bugzilla.redhat.com/show_bug.cgi?id=1312298
Sources
- CVE-2016-2117 · CVE Program
- CVE-2016-2117 · NVD
- FIRST EPSS
- GHSA-7qq2-hfpc-p7pq · GitHub Advisory Database · CC BY 4.0
- CVE-2016-2117 · Red Hat security data · CC BY 4.0
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