The adjust_branches function in kernel/bpf/verifier.c in the Linux kernel before 4.5 does…
Priority LOW 25Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
The adjust_branches function in kernel/bpf/verifier.c in the Linux kernel before 4.5 does not consider the delta in the backward-jump case, which allows local users to obtain sensitive information from kernel memory by creating a packet filter and then loading crafted BPF instructions.
Why it matters now
EPSS 0.00374 31st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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:linux:linux_kernel:*:*:*:*:*:*:*:* | before 4.5.0 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:4.5.0:rc1:*:*:*:*:*:* | 4.5.0 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:4.5.0:rc2:*:*:*:*:*:* | 4.5.0 rc2 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:4.5.0:rc3:*:*:*:*:*:* | 4.5.0 rc3 | Vulnerable | Linux |
| cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* | 14.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:* | 15.10 | Vulnerable | Canonical |
| cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:* | 42.1 | Vulnerable | openSUSE |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 4.5.0 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:4.5.0:rc1:*:*:*:*:*:* Versions 4.5.0 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:4.5.0:rc2:*:*:*:*:*:* Versions 4.5.0 rc2 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:4.5.0:rc3:*:*:*:*:*:* Versions 4.5.0 rc3 Vulnerable ·Linux
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* Versions 14.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:* Versions 15.10 Vulnerable ·Canonical
- cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:* Versions 42.1 Vulnerable ·openSUSE
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
Not affected: 4 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise MRG 2
Timeline
- 2026-10-02 Threatist record created from CVE-2016-2383
- 2026-10-03 Alias added: GHSA-64fh-798g-3h53
References
Patch 2
Sources
- CVE-2016-2383 · CVE Program
- CVE-2016-2383 · NVD
- FIRST EPSS
- GHSA-64fh-798g-3h53 · GitHub Advisory Database · CC BY 4.0
- CVE-2016-2383 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences