ubuntu-cve-2023-45853
Vulnerability from osv_ubuntu
Published
2023-10-14 02:15
Modified
2026-04-22 07:45
Summary
Details

MiniZip in zlib through 1.3 has an integer overflow and resultant heap-based buffer overflow in zipOpenNewFileInZip4_64 via a long filename, comment, or extra field. NOTE: MiniZip is not a supported part of the zlib product. NOTE: pyminizip through 0.2.6 is also vulnerable because it bundles an affected zlib version, and exposes the applicable MiniZip code through its compress API.

Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "lib32z1",
            "binary_version": "1:1.2.8.dfsg-1ubuntu1.1+esm3"
          },
          {
            "binary_name": "lib64z1",
            "binary_version": "1:1.2.8.dfsg-1ubuntu1.1+esm3"
          },
          {
            "binary_name": "libx32z1",
            "binary_version": "1:1.2.8.dfsg-1ubuntu1.1+esm3"
          },
          {
            "binary_name": "zlib-bin",
            "binary_version": "1:1.2.8.dfsg-1ubuntu1.1+esm3"
          },
          {
            "binary_name": "zlib1g",
            "binary_version": "1:1.2.8.dfsg-1ubuntu1.1+esm3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "zlib",
        "purl": "pkg:deb/ubuntu/zlib@1:1.2.8.dfsg-1ubuntu1.1+esm3?arch=source\u0026distro=trusty/esm"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:1.2.8.dfsg-1ubuntu1.1+esm3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:1.2.8.dfsg-1ubuntu1",
        "1:1.2.8.dfsg-1ubuntu1.1",
        "1:1.2.8.dfsg-1ubuntu1.1+esm1",
        "1:1.2.8.dfsg-1ubuntu1.1+esm2"
      ]
    }
  ],
  "aliases": [],
  "details": "MiniZip in zlib through 1.3 has an integer overflow and resultant heap-based buffer overflow in zipOpenNewFileInZip4_64 via a long filename, comment, or extra field. NOTE: MiniZip is not a supported part of the zlib product. NOTE: pyminizip through 0.2.6 is also vulnerable because it bundles an affected zlib version, and exposes the applicable MiniZip code through its compress API.",
  "id": "UBUNTU-CVE-2023-45853",
  "modified": "2026-04-22T07:45:27Z",
  "published": "2023-10-14T02:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-45853"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/madler/zlib/pull/843"
    },
    {
      "type": "REPORT",
      "url": "https://www.winimage.com/zLibDll/minizip.html"
    },
    {
      "type": "REPORT",
      "url": "https://chromium.googlesource.com/chromium/src/+/d709fb23806858847131027da95ef4c548813356"
    },
    {
      "type": "REPORT",
      "url": "https://chromium.googlesource.com/chromium/src/+/de29dd6c7151d3cd37cb4cf0036800ddfb1d8b61"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-45853"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7107-1"
    }
  ],
  "related": [
    "USN-7107-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2023-45853"
  ]
}



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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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