cve/published/2025/CVE-2025-21773.json

{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: etas_es58x: fix potential NULL pointer dereference on udev->serial\n\nThe driver assumed that es58x_dev->udev->serial could never be NULL.\nWhile this is true on commercially available devices, an attacker\ncould spoof the device identity providing a NULL USB serial number.\nThat would trigger a NULL pointer dereference.\n\nAdd a check on es58x_dev->udev->serial before accessing it."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/net/can/usb/etas_es58x/es58x_devlink.c"
               ],
               "versions": [
                  {
                     "version": "9f06631c3f1f0f298536443df85a6837ba4c5f5c",
                     "lessThan": "1590667a60753ee5a54871f2840ceefd4a7831fa",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "9f06631c3f1f0f298536443df85a6837ba4c5f5c",
                     "lessThan": "722e8e1219c8b6ac2865011fe339315d6a8d0721",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "9f06631c3f1f0f298536443df85a6837ba4c5f5c",
                     "lessThan": "5059ea98d7bc133903d3e47ab36df6ed11d0c95f",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "9f06631c3f1f0f298536443df85a6837ba4c5f5c",
                     "lessThan": "a1ad2109ce41c9e3912dadd07ad8a9c640064ffb",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/net/can/usb/etas_es58x/es58x_devlink.c"
               ],
               "versions": [
                  {
                     "version": "6.2",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "6.2",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.6.79",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.12.16",
                     "lessThanOrEqual": "6.12.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.13.4",
                     "lessThanOrEqual": "6.13.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.14",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "cpeApplicability": [
            {
               "nodes": [
                  {
                     "operator": "OR",
                     "negate": false,
                     "cpeMatch": [
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "6.2",
                           "versionEndExcluding": "6.6.79"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "6.2",
                           "versionEndExcluding": "6.12.16"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "6.2",
                           "versionEndExcluding": "6.13.4"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "6.2",
                           "versionEndExcluding": "6.14"
                        }
                     ]
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/1590667a60753ee5a54871f2840ceefd4a7831fa"
            },
            {
               "url": "https://git.kernel.org/stable/c/722e8e1219c8b6ac2865011fe339315d6a8d0721"
            },
            {
               "url": "https://git.kernel.org/stable/c/5059ea98d7bc133903d3e47ab36df6ed11d0c95f"
            },
            {
               "url": "https://git.kernel.org/stable/c/a1ad2109ce41c9e3912dadd07ad8a9c640064ffb"
            }
         ],
         "title": "can: etas_es58x: fix potential NULL pointer dereference on udev->serial",
         "x_generator": {
            "engine": "bippy-1.2.0"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2025-21773",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}