CVE-2023-53843

🗓️ 09 Dec 2025 01:30:05Reported by LinuxType

cve🔗 web.nvd.nist.gov👁 5 Views🌐 WEB

CVE-2023-53843 fixes rejection of negative ifindex in openvswitch net by validating inputs.

Reporter	Title	Published	Views	Family All 43
Tenable Nessus	Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2023-330)	8 Sep 202300:00	–	nessus
Tenable Nessus	SUSE SLES15 Security Update : kernel (SUSE-SU-2026:0278-1)	24 Jan 202600:00	–	nessus
Tenable Nessus	SUSE SLES15 Security Update : kernel (SUSE-SU-2026:0281-1)	27 Jan 202600:00	–	nessus
Tenable Nessus	SUSE SLES15 / openSUSE 15 Security Update : kernel (SUSE-SU-2026:0293-1)	27 Jan 202600:00	–	nessus
Tenable Nessus	SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2026:0315-1)	30 Jan 202600:00	–	nessus
Tenable Nessus	Linux Distros Unpatched Vulnerability : CVE-2023-53843	10 Dec 202500:00	–	nessus
Amazon	Important: kernel	7 Sep 202300:00	–	amazon
AstraLinux	Astra Linux - уязвимость в linux-5.10, linux-6.1	20 May 202605:53	–	astralinux
CNNVD	Linux kernel 安全漏洞	9 Dec 202500:00	–	cnnvd
Cvelist	CVE-2023-53843 net: openvswitch: reject negative ifindex	9 Dec 202501:30	–	cvelist

Vulners

CNA

Node

linux linux_kernelRange6.1–6.1.47

linux linux_kernelRange6.2.0–6.4.12

linux linux_kernelRange6.5.0≥

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/openvswitch/datapath.c"
    ],
    "versions": [
      {
        "version": "54c4ef34c4b6f9720fded620e2893894f9f2c554",
        "lessThan": "c965a58376146dcfdda186819462e8eb3aadef3a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "54c4ef34c4b6f9720fded620e2893894f9f2c554",
        "lessThan": "881faff9e548a7ddfb11595be7c1c649217d27db",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "54c4ef34c4b6f9720fded620e2893894f9f2c554",
        "lessThan": "a552bfa16bab4ce901ee721346a28c4e483f4066",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/openvswitch/datapath.c"
    ],
    "versions": [
      {
        "version": "6.1",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.1",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.47",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.4.12",
        "lessThanOrEqual": "6.4.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.5",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/c965a58376146dcfdda186819462e8eb3aadef3a
git	www.git.kernel.org/stable/c/a552bfa16bab4ce901ee721346a28c4e483f4066
git	www.git.kernel.org/stable/c/881faff9e548a7ddfb11595be7c1c649217d27db

Parameter	Position	Path	Description
upcall-pid	nested	netlink/specs/ovs_vport.yaml	Integer out-of-range validation issue when creating netdev ports with a negative or excessively large ifindex via netlink, enabling creation of ports with invalid indices.
name	nested	netlink/specs/ovs_vport.yaml	Integer out-of-range validation issue when creating netdev ports with a negative or excessively large ifindex via netlink, enabling creation of ports with invalid indices.
dp-ifindex	nested	netlink/specs/ovs_vport.yaml	Integer out-of-range validation issue when creating netdev ports with a negative or excessively large ifindex via netlink, enabling creation of ports with invalid indices.
ifindex	nested	netlink/specs/ovs_vport.yaml	Integer out-of-range validation issue when creating netdev ports with a negative or excessively large ifindex via netlink, enabling creation of ports with invalid indices.
type	nested	netlink/specs/ovs_vport.yaml	Integer out-of-range validation issue when creating netdev ports with a negative or excessively large ifindex via netlink, enabling creation of ports with invalid indices.

11 May 2026 19:52Current

6.2Medium risk

Vulners AI Score6.2

EPSS0.00024