Use-after-free in parse_lease_state()
Priority LOW 37CWE-416Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
An out-of-bounds (OOB) memory read flaw was found in parse_lease_state in the KSMBD implementation of the in-kernel samba server and CIFS in the Linux kernel. When an attacker sends the CREATE command with a malformed payload to KSMBD, due to a missing check of `NameOffset` in the `parse_lease_state()` function, the `create_context` object can access invalid memory.
Why it matters now
EPSS 0.01077 65th 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 |
|---|---|---|---|---|---|
| — | kernel | — | — | No fix listed | CNA |
| Red Hat | Red Hat Enterprise Linux 6 | — | — | Not affected | CNA |
| Red Hat | Red Hat Enterprise Linux 7 | — | — | Not affected | CNA |
| Red Hat | Red Hat Enterprise Linux 7 | — | — | Not affected | CNA |
| Red Hat | Red Hat Enterprise Linux 8 | — | — | Not affected | CNA |
| Red Hat | Red Hat Enterprise Linux 8 | — | — | Not affected | CNA |
| Red Hat | Red Hat Enterprise Linux 9 | — | — | Not affected | CNA |
| Red Hat | Red Hat Enterprise Linux 9 | — | — | Not affected | CNA |
| Fedora | Fedora | — | — | No fix listed | CNA |
- kernel Vendor— Affected — Fixed in — No fix listed CNA
- Red Hat Enterprise Linux 6 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat Enterprise Linux 7 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat Enterprise Linux 7 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat Enterprise Linux 8 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat Enterprise Linux 8 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat Enterprise Linux 9 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat Enterprise Linux 9 VendorRed Hat Affected — Fixed in — Not affected CNA
- Fedora VendorFedora Affected — Fixed in — No fix listed CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.15 to before 5.15.145; 5.16 to before 6.1.34; 6.2 to before 6.3.8 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.4:rc1:*:*:*:*:*:* | 6.4 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.4:rc2:*:*:*:*:*:* | 6.4 rc2 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.4:rc3:*:*:*:*:*:* | 6.4 rc3 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.4:rc4:*:*:*:*:*:* | 6.4 rc4 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.4:rc5:*:*:*:*:*:* | 6.4 rc5 | Vulnerable | Linux |
| cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:* | 37 | Vulnerable | Fedoraproject |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.15 to before 5.15.145; 5.16 to before 6.1.34; 6.2 to before 6.3.8 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.4:rc1:*:*:*:*:*:* Versions 6.4 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.4:rc2:*:*:*:*:*:* Versions 6.4 rc2 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.4:rc3:*:*:*:*:*:* Versions 6.4 rc3 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.4:rc4:*:*:*:*:*:* Versions 6.4 rc4 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.4:rc5:*:*:*:*:*:* Versions 6.4 rc5 Vulnerable ·Linux
- cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:* Versions 37 Vulnerable ·Fedoraproject
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 4 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2023-1194
- 2026-10-03 Alias added: GHSA-53pc-8xr3-68wx
References
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Sources
- CVE-2023-1194 · CVE Program
- CVE-2023-1194 · NVD
- FIRST EPSS
- GHSA-53pc-8xr3-68wx · GitHub Advisory Database · CC BY 4.0
- CVE-2023-1194 · 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