Home/CVE/An issue was discovered in the Linux kernel before 6.3.4. ksmbd has an out-of-bounds read in smb2_find_context_vals when
CVE

CVE-2023-38426

An issue was discovered in the Linux kernel before 6.3.4. ksmbd has an out-of-bounds read in smb2_find_context_vals when

An issue was discovered in the Linux kernel before 6.3.4. ksmbd has an out-of-bounds read in smb2_find_context_vals when create_context's name_len is larger than the tag length.

CRITICAL · CVSS 9.1 EPSS 0.00077
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-125Out-of-bounds Read
▤

Affected Products & Versions

9
linux kernel>= 5.15 and < 5.15.113
linux kernel>= 5.16 and < 6.1.30
linux kernel>= 6.2 and < 6.3.4
netapp solidfire \& hci management nodeall versions
netapp solidfire \& hci storage nodeall versions
netapp h300sall versions
netapp h410sall versions
netapp h500sall versions
▣

Scoring & Timeline

9.1
CRITICAL · CVSS v3.1 · cve@mitre.org
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 NVD18 Jul 2023 · 12:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
⚑

Vendor Advisories

10
usnUSN-6339-4
usnUSN-6339-3
usnUSN-6338-2
usnUSN-6339-2
usnUSN-6351-1
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.4Mailing ListRelease NotesThird Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/fs/ksmbd?id=02f76c401d17e409ed45bf7887148fcc22c93c85Patch
https://security.netapp.com/advisory/ntap-20230915-0010/Third Party AdvisoryVDB Entry
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