GHSA-G5QC-P7W9-V26C

Vulnerability from github – Published: 2025-03-27 18:31 – Updated: 2025-10-31 21:30
VLAI?
Details

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.

Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2023-53032"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-03-27T17:15:52Z",
    "severity": "MODERATE"
  },
  "details": "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.",
  "id": "GHSA-g5qc-p7w9-v26c",
  "modified": "2025-10-31T21:30:52Z",
  "published": "2025-03-27T18:31:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53032"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4e6a70fd840400e3a2e784a6673968a3eb2431c0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/511cf17b2447fc41cfef8d71936e1fa53e395c1e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9ea4b476cea1b7d461d16dda25ca3c7e616e2d15"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dfd834ccc1b88bbbab81b9046a3a539dd0c2d14f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e137d9bb26bd85ce07323a38e38ceb0b160db841"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e88865876d47c790be0d5e23973499d75d034364"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/feefb33eefa166fc3e0fd17547b0bc0cb3baced9"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.