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CVE · referencelatest edition

Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2023-3772

CVE-2023-3772MEDIUM
Red Hat Red Hat Enterprise Linux 8 — Kernel: xfrm: null pointer dereference in xfrm_update_ae_params()
  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   H   N  U  N  N  H    4.4   .0047   39.7     —
AFFECTED
  Product                                                  Versions     Fixed
  Red Hat Enterprise Linux 8                               unspecified  0:4.18.0-513.5.1.rt7.307.el8_9
  Red Hat Enterprise Linux 8                               unspecified  0:4.18.0-513.5.1.el8_9
  Red Hat Enterprise Linux 8.6 Extended Update Support     unspecified  0:4.18.0-372.87.1.el8_6
  Red Hat Enterprise Linux 8.8 Extended Update Support     unspecified  0:4.18.0-477.43.1.el8_8
  Red Hat Enterprise Linux 9                               unspecified  0:5.14.0-362.8.1.el9_3
  Red Hat Enterprise Linux 9                               unspecified  0:5.14.0-362.8.1.el9_3
  Red Hat Virtualization 4 for Red Hat Enterprise Linux 8  unspecified  0:4.18.0-372.87.1.el8_6
  Red Hat Enterprise Linux 6                               unspecified  —
  Red Hat Enterprise Linux 7                               unspecified  —
  Red Hat Enterprise Linux 7                               unspecified  —
  + 1 more
TIMELINE
  Jul 19  Reserved by redhat
  Jul 25  Published (CNA: redhat)
  Oct 14  RESCORED — CVE-2023-3772 (Red Hat Enterprise Linux 8). CVSS 5.5 → 4.4 (NVD).
CWE-476 · CNA: redhat · CVSS v3.1 · 14 references · NVD status: Modified

Description

A flaw was found in the Linux kernel’s IP framework for transforming packets (XFRM subsystem). This issue may allow a malicious user with CAP_NET_ADMIN privileges to directly dereference a NULL pointer in xfrm_update_ae_params(), leading to a possible kernel crash and denial of service.

Lifecycle

Complete event history — 3 events, chronological
DateEventDetail
July 19, 2023ReservedReserved by redhat
July 25, 2023PublishedPublished (CNA: redhat)
October 14, 2026RESCOREDRESCORED — CVE-2023-3772 (Red Hat Enterprise Linux 8). CVSS 5.5 → 4.4 (NVD).

Affected

Affected products and packages — 11 rows
VendorProduct / PackageEcosystemVersion introducedFixed
Red HatRed Hat Enterprise Linux 8——0:4.18.0-513.5.1.rt7.307.el8_9
Red HatRed Hat Enterprise Linux 8——0:4.18.0-513.5.1.el8_9
Red HatRed Hat Enterprise Linux 8.6 Extended Update Support——0:4.18.0-372.87.1.el8_6
Red HatRed Hat Enterprise Linux 8.8 Extended Update Support——0:4.18.0-477.43.1.el8_8
Red HatRed Hat Enterprise Linux 9——0:5.14.0-362.8.1.el9_3
Red HatRed Hat Enterprise Linux 9——0:5.14.0-362.8.1.el9_3
Red HatRed Hat Virtualization 4 for Red Hat Enterprise Linux 8——0:4.18.0-372.87.1.el8_6
Red HatRed Hat Enterprise Linux 6———
Red HatRed Hat Enterprise Linux 7———
Red HatRed Hat Enterprise Linux 7———
Red HatRed Hat Enterprise Linux 9———

Weaknesses

CWE-476

References (14)

Related

Authoritative record: CVE-2023-3772 at cve.org

Vendors: red hat

Weaknesses: CWE-476

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2023-3772 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.