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CVE-2023-33250

Date: May 20, 2023

The Linux kernel 6.3 has a use-after-free in iopt_unmap_iova_range in drivers/iommu/iommufd/io_pagetable.c.

Language: C

Severity Score

4.4

Related Resources (9)

Url: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=804ca14d04df09bf7924bacc5ad22a4bed80c94f

Url: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=dbe245cdf5189e88d680379ed13901356628b650

Url: https://security.netapp.com/advisory/ntap-20230622-0006/

Url: https://lore.kernel.org/linux-iommu/ZDabT%2FuRl%2FjxFhm0%40ip-172-31-85-199.ec2.internal/T/

Url: https://nvd.nist.gov/vuln/detail/CVE-2023-33250

Url: https://groups.google.com/g/syzkaller/c/G6P9yecsTZ8/m/iiqFVOM9BwAJ

Url: https://lore.kernel.org/linux-iommu/ZDabT%2FuRl%2FjxFhm0@ip-172-31-85-199.ec2.internal/T/

Url: https://bugzilla.suse.com/show_bug.cgi?id=1211597

Url: https://www.mend.io/vulnerability-database/CVE-2023-33250

Severity Score

4.4

Weakness Type (CWE)

Use After Free

CWE-416

CVSS v3.1

Base Score:	4.4
Attack Vector (AV):	LOCAL
Attack Complexity (AC):	LOW
Privileges Required (PR):	HIGH
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	HIGH

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