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 samba server and CIFS in the Linux kernel.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.08%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 8.1 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- EPSS
- 1.08% probability · 63th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416, CWE-125
- Affected
- linux/linux kernel · fedoraproject/fedora
- Source
- secalert@redhat.com
References
- https://access.redhat.com/security/cve/CVE-2023-1194Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2154176Issue Tracking, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20231221-0006/Third Party Advisory
- https://www.spinics.net/lists/stable-commits/msg303065.htmlMailing List, Patch
- https://access.redhat.com/security/cve/CVE-2023-1194Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2154176Issue Tracking, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20231221-0006/Third Party Advisory
- https://www.spinics.net/lists/stable-commits/msg303065.htmlMailing List, Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.