CVE-2023-53032 (GCVE-0-2023-53032)
Vulnerability from cvelistv5
Published
2025-03-27 16:44
Modified
2025-05-04 07:48
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: Fix overflow before widen in the bitmap_ip_create() function. When first_ip is 0, last_ip is 0xFFFFFFFF, and netmask is 31, the value of an arithmetic expression 2 << (netmask - mask_bits - 1) is subject to overflow due to a failure casting operands to a larger data type before performing the arithmetic. Note that it's harmless since the value will be checked at the next step. Found by InfoTeCS on behalf of Linux Verification Center (linuxtesting.org) with SVACE.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4e6a70fd840400e3a2e784a6673968a3eb2431c0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/511cf17b2447fc41cfef8d71936e1fa53e395c1e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9ea4b476cea1b7d461d16dda25ca3c7e616e2d15
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dfd834ccc1b88bbbab81b9046a3a539dd0c2d14f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e137d9bb26bd85ce07323a38e38ceb0b160db841
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e88865876d47c790be0d5e23973499d75d034364
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/feefb33eefa166fc3e0fd17547b0bc0cb3baced9
Impacted products
Vendor Product Version
Linux Linux Version: b9fed748185a96b7cfe74afac4bd228e8af16f01
Version: b9fed748185a96b7cfe74afac4bd228e8af16f01
Version: b9fed748185a96b7cfe74afac4bd228e8af16f01
Version: b9fed748185a96b7cfe74afac4bd228e8af16f01
Version: b9fed748185a96b7cfe74afac4bd228e8af16f01
Version: b9fed748185a96b7cfe74afac4bd228e8af16f01
Version: b9fed748185a96b7cfe74afac4bd228e8af16f01
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   Linux Linux Version: 3.7
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{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/netfilter/ipset/ip_set_bitmap_ip.c"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: ipset: Fix overflow before widen in the bitmap_ip_create() function.\n\nWhen first_ip is 0, last_ip is 0xFFFFFFFF, and netmask is 31, the value of\nan arithmetic expression 2 \u003c\u003c (netmask - mask_bits - 1) is subject\nto overflow due to a failure casting operands to a larger data type\nbefore performing the arithmetic.\n\nNote that it\u0027s harmless since the value will be checked at the next step.\n\nFound by InfoTeCS on behalf of Linux Verification Center\n(linuxtesting.org) with SVACE."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T07:48:08.190Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53032",
    "datePublished": "2025-03-27T16:44:00.286Z",
    "dateReserved": "2025-03-27T16:40:15.757Z",
    "dateUpdated": "2025-05-04T07:48:08.190Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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  }
}


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