CVE-2023-7192 (GCVE-0-2023-7192)

Vulnerability from cvelistv5 – Published: 2024-01-02 19:02 – Updated: 2025-11-20 18:07
VLAI
Title
Kernel: refcount leak in ctnetlink_create_conntrack()
Summary
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.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
URL Tags
https://access.redhat.com/errata/RHSA-2024:0723 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:0725 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:1188 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:1250 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:1306 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:1367 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:1382 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:1404 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:2006 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:2008 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2023-7192 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2256279 issue-trackingx_refsource_REDHAT
https://git.kernel.org/pub/scm/linux/kernel/git/n…
Impacted products
Vendor Product Version
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support Unaffected: 0:4.18.0-193.133.1.el8_2 , < * (rpm)
    cpe:/o:redhat:rhel_tus:8.2::baseos
    cpe:/o:redhat:rhel_e4s:8.2::baseos
    cpe:/o:redhat:rhel_aus:8.2::baseos
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.2 Telecommunications Update Service Unaffected: 0:4.18.0-193.133.1.rt13.184.el8_2 , < * (rpm)
    cpe:/a:redhat:rhel_tus:8.2::realtime
    cpe:/a:redhat:rhel_tus:8.2::nfv
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.2 Telecommunications Update Service Unaffected: 0:4.18.0-193.133.1.el8_2 , < * (rpm)
    cpe:/o:redhat:rhel_tus:8.2::baseos
    cpe:/o:redhat:rhel_e4s:8.2::baseos
    cpe:/o:redhat:rhel_aus:8.2::baseos
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions Unaffected: 0:4.18.0-193.133.1.el8_2 , < * (rpm)
    cpe:/o:redhat:rhel_tus:8.2::baseos
    cpe:/o:redhat:rhel_e4s:8.2::baseos
    cpe:/o:redhat:rhel_aus:8.2::baseos
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:4.18.0-305.125.1.el8_4 , < * (rpm)
    cpe:/o:redhat:rhel_e4s:8.4::baseos
    cpe:/o:redhat:rhel_tus:8.4::baseos
    cpe:/o:redhat:rhel_aus:8.4::baseos
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service Unaffected: 0:4.18.0-305.125.1.rt7.201.el8_4 , < * (rpm)
    cpe:/a:redhat:rhel_tus:8.4::nfv
    cpe:/a:redhat:rhel_tus:8.4::realtime
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service Unaffected: 0:4.18.0-305.125.1.el8_4 , < * (rpm)
    cpe:/o:redhat:rhel_e4s:8.4::baseos
    cpe:/o:redhat:rhel_tus:8.4::baseos
    cpe:/o:redhat:rhel_aus:8.4::baseos
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions Unaffected: 0:4.18.0-305.125.1.el8_4 , < * (rpm)
    cpe:/o:redhat:rhel_e4s:8.4::baseos
    cpe:/o:redhat:rhel_tus:8.4::baseos
    cpe:/o:redhat:rhel_aus:8.4::baseos
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Unaffected: 0:4.18.0-372.95.1.el8_6 , < * (rpm)
    cpe:/o:redhat:rhel_eus:8.6::baseos
    cpe:/a:redhat:rhel_eus:8.6::crb
    cpe:/o:redhat:rhev_hypervisor:4.4::el8
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support Unaffected: 0:4.18.0-477.51.1.el8_8 , < * (rpm)
    cpe:/o:redhat:rhel_eus:8.8::baseos
    cpe:/a:redhat:rhel_eus:8.8::crb
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support Unaffected: 0:5.14.0-70.93.2.el9_0 , < * (rpm)
    cpe:/a:redhat:rhel_eus:9.0::appstream
    cpe:/a:redhat:rhel_eus:9.0::crb
    cpe:/o:redhat:rhel_eus:9.0::baseos
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support Unaffected: 0:5.14.0-70.93.1.rt21.165.el9_0 , < * (rpm)
    cpe:/a:redhat:rhel_eus:9.0::nfv
    cpe:/a:redhat:rhel_eus:9.0::realtime
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support Unaffected: 0:5.14.0-284.52.1.el9_2 , < * (rpm)
    cpe:/a:redhat:rhel_eus:9.2::crb
    cpe:/a:redhat:rhel_eus:9.2::appstream
    cpe:/o:redhat:rhel_eus:9.2::baseos
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support Unaffected: 0:5.14.0-284.52.1.rt14.337.el9_2 , < * (rpm)
    cpe:/a:redhat:rhel_eus:9.2::nfv
    cpe:/a:redhat:rhel_eus:9.2::realtime
 Create a notification for this product.
Red Hat Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 Unaffected: 0:4.18.0-372.95.1.el8_6 , < * (rpm)
    cpe:/o:redhat:rhel_eus:8.6::baseos
    cpe:/a:redhat:rhel_eus:8.6::crb
    cpe:/o:redhat:rhev_hypervisor:4.4::el8
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9
 Create a notification for this product.
Date Public
2023-02-10 00:00
Show details on NVD website
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(i.e., nf_conntrack_netlink) onto the system until we have a fix available. This can be done by a blacklist mechanism which will ensure the driver is not loaded at boot time.\\n~~~\\nHow do I blacklist a kernel module to prevent it from loading automatically?\\nhttps://access.redhat.com/solutions/41278 \\n~~~\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"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.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-401\", \"description\": \"Missing Release of Memory after Effective Lifetime\"}]}], \"providerMetadata\": {\"orgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"shortName\": \"redhat\", \"dateUpdated\": \"2025-11-20T18:07:32.157Z\"}, \"x_redhatCweChain\": \"CWE-401: Missing Release of Memory after Effective Lifetime\"}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-7192\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-11-20T18:07:32.157Z\", \"dateReserved\": \"2023-12-30T18:12:05.167Z\", \"assignerOrgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"datePublished\": \"2024-01-02T19:02:45.371Z\", \"assignerShortName\": \"redhat\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.