Riskcovery

CVE-2023-7192

Kernel: refcount leak in ctnetlink_create_conntrack()

State
Published
Severity
5.5 Medium
Published
Jan 2, 2024
Updated
Nov 20, 2025
Reserved
Dec 30, 2023

Read the record on cve.org

Description

A memory leak problem was found in ctnetlink_create_conntrack in net/netfilter/nf_conntrack_netlink.c in the Linux Kernel. This issue may allow a local attacker with CAP_NET_ADMIN privileges to cause a denial of service (DoS) attack due to a refcount overflow.

Scores

CVSSScoreVectorSource
3.15.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hredhat

Weaknesses

  • CWE-401 Missing Release of Memory after Effective Lifetime

Affected Products

ProductVersions
Red Hat Enterprise Linux 8.2 Advanced Update SupportRed Hat
  • 0:4.18.0-193.133.1.el8_2 and laterNot affected
Red Hat Enterprise Linux 8.2 Telecommunications Update ServiceRed Hat
  • 0:4.18.0-193.133.1.rt13.184.el8_2 and laterNot affected
Red Hat Enterprise Linux 8.2 Telecommunications Update ServiceRed Hat
  • 0:4.18.0-193.133.1.el8_2 and laterNot affected
Red Hat Enterprise Linux 8.2 Update Services for SAP SolutionsRed Hat
  • 0:4.18.0-193.133.1.el8_2 and laterNot affected
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRed Hat
  • 0:4.18.0-305.125.1.el8_4 and laterNot affected
Red Hat Enterprise Linux 8.4 Telecommunications Update ServiceRed Hat
  • 0:4.18.0-305.125.1.rt7.201.el8_4 and laterNot affected
Red Hat Enterprise Linux 8.4 Telecommunications Update ServiceRed Hat
  • 0:4.18.0-305.125.1.el8_4 and laterNot affected
Red Hat Enterprise Linux 8.4 Update Services for SAP SolutionsRed Hat
  • 0:4.18.0-305.125.1.el8_4 and laterNot affected
Red Hat Enterprise Linux 8.6 Extended Update SupportRed Hat
  • 0:4.18.0-372.95.1.el8_6 and laterNot affected
Red Hat Enterprise Linux 8.8 Extended Update SupportRed Hat
  • 0:4.18.0-477.51.1.el8_8 and laterNot affected
Red Hat Enterprise Linux 9.0 Extended Update SupportRed Hat
  • 0:5.14.0-70.93.2.el9_0 and laterNot affected
Red Hat Enterprise Linux 9.0 Extended Update SupportRed Hat
  • 0:5.14.0-70.93.1.rt21.165.el9_0 and laterNot affected
Red Hat Enterprise Linux 9.2 Extended Update SupportRed Hat
  • 0:5.14.0-284.52.1.el9_2 and laterNot affected
Red Hat Enterprise Linux 9.2 Extended Update SupportRed Hat
  • 0:5.14.0-284.52.1.rt14.337.el9_2 and laterNot affected
Red Hat Virtualization 4 for Red Hat Enterprise Linux 8Red Hat
  • 0:4.18.0-372.95.1.el8_6 and laterNot affected
Red Hat Enterprise Linux 6Red Hat
    Red Hat Enterprise Linux 7Red Hat
      Red Hat Enterprise Linux 7Red Hat
        Red Hat Enterprise Linux 8Red Hat
          Red Hat Enterprise Linux 8Red Hat
            Red Hat Enterprise Linux 9Red Hat
              Red Hat Enterprise Linux 9Red Hat

                References

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