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Vulnerability · Published May 21, 2023 · Assigned by mitre

CVE-2023-33250

Medium 4.4

In plain English

A medium-severity use-after-free in the linux package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)4.4Medium
Exploit odds (30 days)0.2%top 83.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:13linux6.4.4-1DEBIAN-CVE-2023-33250
Debian:14linux6.4.4-1DEBIAN-CVE-2023-33250
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2023-33250
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2023-33250
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2023-33250
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2023-33250
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2023-33250
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2023-33250
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2023-33250
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-33250

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

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

References