{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nftables: exthdr: fix 4-byte stack OOB write\n\nIf priv->len is a multiple of 4, then dst[len / 4] can write past\nthe destination array which leads to stack corruption.\n\nThis construct is necessary to clean the remainder of the register\nin case ->len is NOT a multiple of the register size, so make it\nconditional just like nft_payload.c does.\n\nThe bug was added in 4.1 cycle and then copied/inherited when\ntcp/sctp and ip option support was added.\n\nBug reported by Zero Day Initiative project (ZDI-CAN-21950,\nZDI-CAN-21951, ZDI-CAN-21961)."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "net/netfilter/nft_exthdr.c"
               ],
               "versions": [
                  {
                     "version": "49499c3e6e18",
                     "lessThan": "28a97c43c9e3",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "49499c3e6e18",
                     "lessThan": "cf39c4f77a77",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "49499c3e6e18",
                     "lessThan": "a7d86a77c33b",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "49499c3e6e18",
                     "lessThan": "1ad7b189cc14",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "49499c3e6e18",
                     "lessThan": "d9ebfc0f2137",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "49499c3e6e18",
                     "lessThan": "c8f292322ff1",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "49499c3e6e18",
                     "lessThan": "fd94d9dadee5",
                     "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/netfilter/nft_exthdr.c"
               ],
               "versions": [
                  {
                     "version": "4.1",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "4.1",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.19.316",
                     "lessThanOrEqual": "4.19.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.4.279",
                     "lessThanOrEqual": "5.4.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.10.198",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.15.132",
                     "lessThanOrEqual": "5.15.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.1.54",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.5.4",
                     "lessThanOrEqual": "6.5.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/28a97c43c9e32f437ebb8d6126f9bb7f3ca9521a"
            },
            {
               "url": "https://git.kernel.org/stable/c/cf39c4f77a773a547ac2bcf30ecdd303bb0c80cb"
            },
            {
               "url": "https://git.kernel.org/stable/c/a7d86a77c33ba1c357a7504341172cc1507f0698"
            },
            {
               "url": "https://git.kernel.org/stable/c/1ad7b189cc1411048434e8595ffcbe7873b71082"
            },
            {
               "url": "https://git.kernel.org/stable/c/d9ebfc0f21377690837ebbd119e679243e0099cc"
            },
            {
               "url": "https://git.kernel.org/stable/c/c8f292322ff16b9a2272a67de396c09a50e09dce"
            },
            {
               "url": "https://git.kernel.org/stable/c/fd94d9dadee58e09b49075240fe83423eb1dcd36"
            }
         ],
         "title": "netfilter: nftables: exthdr: fix 4-byte stack OOB write",
         "x_generator": {
            "engine": "bippy-7d53e8ef8be4"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2023-52628",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}