Home/CVE/An out-of-bounds (OOB) memory read flaw was found in parse_lease_state in the KSMBD implementation of the in-kernel samb
CVE

CVE-2023-1194

An out-of-bounds (OOB) memory read flaw was found in parse_lease_state in the KSMBD implementation of the in-kernel samb

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.

HIGH · CVSS 7.1 EPSS 0.00087
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-125Out-of-bounds Read
CWE-416Use After Free
▤

Affected Products & Versions

5
linux kernel>= 5.15 and < 5.15.145
linux kernel>= 5.16 and < 6.1.34
linux kernel>= 6.2 and < 6.3.8
linux kernelall versions
fedoraproject fedoraall versions
▣

Scoring & Timeline

7.1
HIGH · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD03 Nov 2023 · 08:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
⚑

Vendor Advisories

3
usnUSN-6725-2
usnUSN-6725-1
msrcCVE-2023-1194
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://access.redhat.com/security/cve/CVE-2023-1194Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2154176Issue TrackingThird Party Advisory
https://security.netapp.com/advisory/ntap-20231221-0006/Third Party Advisory
https://www.spinics.net/lists/stable-commits/msg303065.htmlMailing ListPatch
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