High severity · published Feb 29, 2024
CVE-2023-52479
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix uaf in smb20_oplock_break_ack drop reference after use opinfo
8.8
CVSS
0.6%
EPSS
No
On KEV
Description
In the Linux kernel, the following vulnerability has been resolved:
ksmbd: fix uaf in smb20_oplock_break_ack
drop reference after use opinfo.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 49% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
before 5.15.135; 5.16 before 6.1.57; 6.2 before 6.5.7; 6.6; 6.6; 6.6; +1 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-52479
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-52479
Patch
https://git.kernel.org/stable/c/694e13732e830cbbfedb562e57f28644927c33fd
Patch
https://git.kernel.org/stable/c/8226ffc759ea59f10067b9acdf7f94bae1c69930
Patch
https://git.kernel.org/stable/c/c69813471a1ec081a0b9bf0c6bd7e8afd818afce
Patch
https://git.kernel.org/stable/c/d5b0e9d3563e7e314a850e81f42b2ef6f39882f9
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