Integer overflow in [UNKNOWN] kernel:
Priority LOW 34CWE-190Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 1 fixed, 1 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-190 and the CVSS impact.
Summary
In the Linux kernel before version 4.12, Kerberos 5 tickets decoded when using the RXRPC keys incorrectly assumes the size of a field. This could lead to the size-remaining variable wrapping and the data pointer going over the end of the buffer. This could possibly lead to memory corruption and possible privilege escalation.
Why it matters now
EPSS 0.0047 40th percentileScored 2026-11-07
Fix Partial Red Hat: 1 advisoryRed Hat: 1 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 |
|---|---|---|---|---|---|
| [UNKNOWN] | kernel: | 4.12 | — | No fix listed | CNA |
- kernel: Vendor[UNKNOWN] Affected 4.12 Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | before 3.2.90; 3.3 to before 3.10.108; 3.11 to before 3.16.45; 3.17 to before 3.18.59; 3.19 to before 4.1.43; 4.2 to before 4.4.75; 4.5 to before 4.9.35; 4.10 to before 4.11.8 | Vulnerable | Linux |
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Debian |
| cpe:2.3:o:redhat:enterprise_mrg:2.0:*:*:*:*:*:*:* | 2.0 | Vulnerable | Red Hat |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 3.2.90; 3.3 to before 3.10.108; 3.11 to before 3.16.45; 3.17 to before 3.18.59; 3.19 to before 4.1.43; 4.2 to before 4.4.75; 4.5 to before 4.9.35; 4.10 to before 4.11.8 Vulnerable ·Linux
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
- cpe:2.3:o:redhat:enterprise_mrg:2.0:*:*:*:*:*:*:* Versions 2.0 Vulnerable ·Red Hat
Remediation
Red Hat 1 advisory
- RHSA-2019:0641 Released 2019-03-26 · Red Hat rating Importantkernel-rt security and bug fix update
- Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt-1:3.10.0-693.46.1.rt56.639.el6rt, kernel-rt-debug-1:3.10.0-693.46.1.rt56.639.el6rt, kernel-rt-debug-devel-1:3.10.0-693.46.1.rt56.639.el6rt +7
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 7 | Affected | No fix yet |
| Red Hat MRG Realtime for RHEL 6 Server v.2 | Fixed | RHSA-2019:0641 |
Not affected: 3 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2017-7482
- 2026-10-03 Alias added: GHSA-2x6j-879g-gpqr
References
Patch 3
Advisory 3
Sources
- CVE-2017-7482 · CVE Program
- CVE-2017-7482 · NVD
- FIRST EPSS
- GHSA-2x6j-879g-gpqr · GitHub Advisory Database · CC BY 4.0
- CVE-2017-7482 · Red Hat security data · CC BY 4.0
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