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Fencer Vulns
critical 9.8

CVE-2022-48686 in the critical feed json

nvme-tcp: fix UAF when detecting digest errors

published 2024-05-03 2 y ago modified 2026-08-05 3 mo ago also EUVD-2022-53565

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 53%
public exploits
0
none known

Summary

In the Linux kernel, the following vulnerability has been resolved:

nvme-tcp: fix UAF when detecting digest errors

We should also bail from the io_work loop when we set rd_enabled to true, so we don't attempt to read data from the socket when the TCP stream is already out-of-sync or corrupted.

Patch / fix

  • Linux Linux 5.4.213, 5.10.143, 5.15.68, 5.19.9, 6.0
  • linux Debian 14, Debian 13, Debian 12 5.19.11-1

debian advisories DEBIAN-CVE-2022-48686

  • linux Ubuntu 20.04 LTS 5.4.0-136.153
  • linux Ubuntu 22.04 LTS 5.15.0-57.63
  • linux-aws Ubuntu 20.04 LTS 5.4.0-1093.101
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1027.31
  • linux-gcp Ubuntu 20.04 LTS 5.4.0-1097.106
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1026.33
  • linux-gke Ubuntu 22.04 LTS 5.15.0-1024.29
  • linux-ibm Ubuntu 20.04 LTS 5.4.0-1041.46

ubuntu advisories UBUNTU-CVE-2022-48686

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

  • kernel RHEL 8.8 EUS 4.18.0-477.81.1.el8_8
  • perf RHEL 8.8 EUS 4.18.0-477.81.1.el8_8
  • bpftool RHEL 8.8 EUS 4.18.0-477.81.1.el8_8
  • kernel-core RHEL 8.8 EUS 4.18.0-477.81.1.el8_8
  • kernel-tools RHEL 8.8 EUS 4.18.0-477.81.1.el8_8
  • python3-perf RHEL 8.8 EUS 4.18.0-477.81.1.el8_8
  • kernel-modules RHEL 8.8 EUS 4.18.0-477.81.1.el8_8
  • kernel-zfcpdump RHEL 8.8 EUS 4.18.0-477.81.1.el8_8

red hat advisories RHSA-2024:10262RHSA-2024:6998

  • kernel-rt SLE Micro 5.4, SLE Micro 5.3 5.14.21-150400.15.106.1
  • kernel-source-rt SLE Micro 5.4, SLE Micro 5.3 5.14.21-150400.15.106.1
  • kernel-default SLES for SAP 15 SP2, SLES 15 SP2-LTSS, SLE Live Patching 15 SP2 +2 more 5.3.18-150200.24.203.1
  • kernel-64kb SLES 15 SP3-LTSS, SLE High Performance Computing 15 SP3-LTSS, Enterprise Storage 7.1 5.3.18-150300.59.174.1
  • kernel-syms SLES for SAP 15 SP3, SLES 15 SP3-LTSS, SLE High Performance Computing 15 SP3-LTSS +1 more 5.3.18-150300.59.174.1
  • kernel-source SLES for SAP 15 SP3, SLES 15 SP3-LTSS, SLE High Performance Computing 15 SP3-LTSS +1 more 5.3.18-150300.59.174.1
  • kernel-default SLES for SAP 15 SP3, SLES 15 SP3-LTSS, SLE Micro 5.2 +5 more 5.3.18-150300.59.174.1
  • kernel-preempt SLES for SAP 15 SP3, SLES 15 SP3-LTSS, SLE High Performance Computing 15 SP3-LTSS +1 more 5.3.18-150300.59.174.1

suse advisories SUSE-SU-2025:0231-1SUSE-SU-2025:0103-1SUSE-SU-2025:0100-1SUSE-SU-2025:0094-1SUSE-SU-2025:0091-1SUSE-SU-2024:3499-1

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-2022-48686 updated cvss 5.3

kernel: nvme-tcp: fix UAF when detecting digest errors

  • Red Hat Enterprise Linux 8 perf, kernel, bpftool, kernel-rt, kernel-core, kernel-tools, +29 more
    affected: workaround, no fix available
  • Red Hat CodeReady Linux Builder EUS (v.8.8) kernel-debuginfo-common-x86_64 4.18.0-477.81.1.el8_8, kernel-debuginfo-common-aarch64 4.18.0-477.81.1.el8_8, kernel-debuginfo-common-ppc64le 4.18.0-477.81.1.el8_8
    fixed: vendor fix RHSA-2024:10262
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6) perf 4.18.0-372.124.1.el8_6, kernel 4.18.0-372.124.1.el8_6, bpftool 4.18.0-372.124.1.el8_6, kernel-core 4.18.0-372.124.1.el8_6, kernel-tools 4.18.0-372.124.1.el8_6, python3-perf 4.18.0-372.124.1.el8_6, +8 more Red Hat Enterprise Linux BaseOS E4S (v.8.6) perf 4.18.0-372.124.1.el8_6, kernel 4.18.0-372.124.1.el8_6, bpftool 4.18.0-372.124.1.el8_6, kernel-core 4.18.0-372.124.1.el8_6, kernel-tools 4.18.0-372.124.1.el8_6, python3-perf 4.18.0-372.124.1.el8_6, +15 more
    fixed: vendor fix RHSA-2024:6998
  • Red Hat Enterprise Linux BaseOS EUS (v.8.8) perf 4.18.0-477.81.1.el8_8, kernel 4.18.0-477.81.1.el8_8, bpftool 4.18.0-477.81.1.el8_8, kernel-core 4.18.0-477.81.1.el8_8, kernel-tools 4.18.0-477.81.1.el8_8, python3-perf 4.18.0-477.81.1.el8_8, +15 more
    fixed: vendor fix RHSA-2024:10262
  • Red Hat Enterprise Linux BaseOS TUS (v.8.6) perf 4.18.0-372.124.1.el8_6, kernel 4.18.0-372.124.1.el8_6, bpftool 4.18.0-372.124.1.el8_6, kernel-core 4.18.0-372.124.1.el8_6, kernel-tools 4.18.0-372.124.1.el8_6, python3-perf 4.18.0-372.124.1.el8_6, +8 more
    fixed: vendor fix RHSA-2024:6998
  • 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, kernel-rt, python-perf, kernel-kdump, +8 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
2 y ago

Exploit prediction

0.70% chance of exploitation in the next 30 days, higher than 53% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADP 3.1 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

  • Linux Linux

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.