Review reviewHigh

CVE-2024-35864

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix potential UAF in smb2_is_valid_lease_break() Skip sessions that are being teared down (status == SES_EXITING) to avoid UAF.

CVSS: 7.8
EPSS: 0.66%
CISA KEV: Not listed
Published: 2024.05.19

PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.66%

Technical severityCVSS 7.8

Vulnerability overview

Affected product and versions

Product: Linux Linux, linux kernel
Affected versions: >= 7f48558e6489d032b1584b0cc9ac4bb11072c034 < c868cabdf6fdd61bea54532271f4708254e57fc5, >= 7f48558e6489d032b1584b0cc9ac4bb11072c034 < f92739fdd4522c4291277136399353d7c341fae4, >= 7f48558e6489d032b1584b0cc9ac4bb11072c034 < a8344e2b69bde63f713b0aa796d70dbeadffddfb, >= 7f48558e6489d032b1584b0cc9ac4bb11072c034 < 705c76fbf726c7a2f6ff9143d4013b18daaaebf1, >= a67172a013953664b1dad03c648200c70b90506c, >= 3.12.48 < 3.13, >= 3.13, < 6.1.85, >= 6.2 < 6.6.26, >= 6.7 < 6.8.5, 6.9
Fixed versions: 6.1.85, 6.6.26, 6.8.5

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that Linux Linux, linux kernel and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE: CWE-416