Medium severity · published Mar 1, 2023
CVE-2023-23005
In the Linux kernel before 6.2, mm/memory-tiers.c misinterprets the alloc_memory_type return value (expects it to be NULL in the error case, whereas it is actually an error…
5.5
CVSS
0.3%
EPSS
No
On KEV
Description
In the Linux kernel before 6.2, mm/memory-tiers.c misinterprets the alloc_memory_type return value (expects it to be NULL in the error case, whereas it is actually an error pointer). NOTE: this is disputed by third parties because there are no realistic cases in which a user can cause the alloc_memory_type error case to be reached.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 19% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
before 6.2 · source: NVD
LE
Linux Enterprise Server · Suse
15 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-23005
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-23005
Issue Tracking
https://bugzilla.suse.com/show_bug.cgi?id=1208844#c2
Mailing List
https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2
Patch
https://github.com/torvalds/linux/commit/4a625ceee8a0ab0273534cb6b432ce6b331db5ee
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