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Fencer Vulns
medium 5.5

CVE-2023-23000 json

In the Linux kernel before 5.17, drivers/phy/tegra/xusb.c mishandles the tegra_xusb_find_port_node return value.

published 2023-03-01 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-27100

cvss
5.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 19%
public exploits
0
none known

Summary

In the Linux kernel before 5.17, drivers/phy/tegra/xusb.c mishandles the tegra_xusb_find_port_node return value. Callers expect NULL in the error case, but an error pointer is used.

Patch / fix

  • linux linux_kernel 5.17
  • linux Debian 14, Debian 13, Debian 12 5.17.3-1

debian advisories DEBIAN-CVE-2023-23000

  • linux Ubuntu 20.04 LTS 5.4.0-174.193
  • linux Ubuntu 22.04 LTS 5.15.0-101.111
  • linux-aws Ubuntu 20.04 LTS 5.4.0-1121.131
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1056.61
  • linux-gcp Ubuntu 20.04 LTS 5.4.0-1125.134
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1054.62
  • linux-gke Ubuntu 22.04 LTS 5.15.0-1053.58
  • linux-ibm Ubuntu 20.04 LTS 5.4.0-1068.73

ubuntu advisories UBUNTU-CVE-2023-23000

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • dtb-aarch64 openSUSE Leap 15.5 5.14.21-150500.55.7.1
  • kernel-64kb SLE Module for Basesystem 15 SP5, openSUSE Leap 15.5 5.14.21-150500.55.7.1
  • kernel-syms SLE Module for Development Tools 15 SP5, openSUSE Leap 15.5 5.14.21-150500.55.7.1
  • kernel-obs-qa openSUSE Leap 15.5 5.14.21-150500.55.7.1
  • kernel-source SLE Module for Development Tools 15 SP5, SLE Module for Basesystem 15 SP5, openSUSE Leap 15.5 5.14.21-150500.55.7.1
  • kernel-default SLE Workstation Extension 15 SP5, SLE Module for Legacy 15 SP5, SLE Module for Basesystem 15 SP5 +3 more 5.14.21-150500.55.7.1
  • kernel-kvmsmall openSUSE Leap 15.5 5.14.21-150500.55.7.1
  • kernel-zfcpdump SLE Module for Basesystem 15 SP5, openSUSE Leap 15.5 5.14.21-150500.55.7.1

suse advisories SUSE-SU-2023:2871-1SUSE-SU-2023:2809-1SUSE-SU-2023:2646-1SUSE-SU-2023:1710-1SUSE-SU-2023:1609-1SUSE-SU-2023:1608-1

  • kernel CBL-Mariner 2.0 5.15.135.1-2
  • hyperv-daemons CBL-Mariner 2.0 5.15.111.1-1

azure linux advisories AZL-25319AZL-25901

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-23000 updated cvss 5.1

kernel: incorrect return value for the error case in the tegra_xusb_find_port_node

  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, bpftool, python-perf, kernel-kdump, kernel-tools, +3 more Red Hat Enterprise Linux 8 perf, kernel, bpftool, kernel-rt, kernel-core, kernel-tools, +29 more Red Hat Enterprise Linux 9 rv, perf, rtla, kernel, bpftool, libperf, +83 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
20 mo ago

Exploit prediction

0.27% chance of exploitation in the next 30 days, higher than 19% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CNA 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Classification

Weakness
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.