{
  "cveId": "CVE-2026-41992",
  "url": "https://patchblox.com/security/cve/CVE-2026-41992",
  "summary": "CVE-2026-41992 is fixed in 2 products on 1 platform, first by gzip 1.6-5ubuntu1.2\u002Besm1, released June 29, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "Global Buffer Overflow in GNU gzip",
  "description": "GNU gzip contains a global buffer overflow vulnerability in the LZH decompression logic caused by improper reuse of shared global state between different decompression formats within a single execution. GNU gzip maintains a global array that is shared across the LZ77, LZW, and LZH decompression routines and is not reinitialized between files processed in the same invocation. By decompressing a specially crafted LZW file followed by a specially crafted LZH file in a single gzip -d command, an attacker can poison the shared global state and subsequently trigger an out\u2011of\u2011bounds read in the LZH decoder. The LZH decompression logic follows stale values left in the shared array, causing reads past the end of the allocated global buffer.  This issue has been fixed in commits 63dbf6b3b9e6e781df1a6a64e609b10e23969681 and\u00A0e7378c2d421be6a286922374425680bbe9ad8b7d.",
  "published": "2026-06-29T05:16:00Z",
  "severity": "Moderate",
  "cvss": 7.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
  "cwe": "Buffer Over-read",
  "epss": 0.0062,
  "epssPercentile": 0.49941,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41992",
  "fixes": [
    {
      "platform": "linux",
      "product": "gzip",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "1.13-1\u002Bdeb13u1",
      "fix": "DEBIAN-CVE-2026-41992",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-41992",
      "released": "2026-06-29T12:16:29Z"
    },
    {
      "platform": "linux",
      "product": "gzip",
      "release": "Debian 14",
      "fixedVersion": "1.14-1",
      "fix": "DEBIAN-CVE-2026-41992",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-41992",
      "released": "2026-06-29T12:16:29Z"
    },
    {
      "platform": "linux",
      "product": "gzip",
      "release": "RHEL 10",
      "fixedVersion": "1.13-4.el10_2",
      "fix": "RHSA-2026:61625",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-61625",
      "released": "2026-06-29T10:15:57Z"
    },
    {
      "platform": "linux",
      "product": "gzip",
      "release": "RHEL 8",
      "fixedVersion": "0:1.9-15.el8_10",
      "fix": "RHSA-2026:65998",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-65998",
      "released": "2026-09-13T12:46:35Z"
    },
    {
      "platform": "linux",
      "product": "gzip",
      "release": "RHEL 9",
      "fixedVersion": "0:1.12-2.el9_8",
      "fix": "RHSA-2026:61623",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-61623",
      "released": "2026-09-13T12:47:53Z"
    },
    {
      "platform": "linux",
      "product": "gzip",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.6-5ubuntu1.2\u002Besm1",
      "fix": "gzip 1.6-5ubuntu1.2\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-gzip-1.6-5ubuntu1.2-esm1",
      "released": "2026-06-29T05:16:00Z"
    },
    {
      "platform": "linux",
      "product": "gzip",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1.10-0ubuntu4.1\u002Besm1",
      "fix": "gzip 1.10-0ubuntu4.1\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-gzip-1.10-0ubuntu4.1-esm1",
      "released": "2026-06-29T05:16:00Z"
    },
    {
      "platform": "linux",
      "product": "gzip",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1.10-4ubuntu4.2",
      "fix": "gzip 1.10-4ubuntu4.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-gzip-1.10-4ubuntu4.2",
      "released": "2026-07-07T15:29:03Z"
    },
    {
      "platform": "linux",
      "product": "gzip",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "1.12-1ubuntu3.2",
      "fix": "gzip 1.12-1ubuntu3.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-gzip-1.12-1ubuntu3.2",
      "released": "2026-07-07T15:29:06Z"
    },
    {
      "platform": "linux",
      "product": "gzip",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.14-1~exp2ubuntu1.1",
      "fix": "gzip 1.14-1~exp2ubuntu1.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-gzip-1.14-1-exp2ubuntu1.1",
      "released": "2026-06-29T05:16:00Z"
    },
    {
      "platform": "linux",
      "product": "gzip",
      "release": "almalinux 10",
      "fixedVersion": "1.13-4.el10_2",
      "fix": "ALSA-2026:61625",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-61625",
      "released": "2026-08-31T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "gzip",
      "release": "almalinux 8",
      "fixedVersion": "1.9-15.el8_10",
      "fix": "ALSA-2026:65998",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-65998",
      "released": "2026-09-09T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "gzip",
      "release": "almalinux 9",
      "fixedVersion": "1.12-2.el9_8",
      "fix": "ALSA-2026:61623",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-61623",
      "released": "2026-08-31T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "gzip",
      "release": "ol 10",
      "fixedVersion": "0:1.13-4.el10_2",
      "fix": "ELSA-2026-61625-0",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-61625-0",
      "released": "2026-09-01T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "gzip",
      "release": "ol 8",
      "fixedVersion": "0:1.9-15.el8_10",
      "fix": "ELSA-2026-65998-0",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-65998-0",
      "released": "2026-09-10T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "gzip",
      "release": "ol 9",
      "fixedVersion": "0:1.12-2.el9_8",
      "fix": "ELSA-2026-61623-0",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-61623-0",
      "released": "2026-09-01T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "gzip",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "1.13-160000.4.1",
      "fix": "OPENSUSE-SU-2026:21666-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21666-1",
      "released": "2026-08-27T12:47:41Z"
    },
    {
      "platform": "linux",
      "product": "gzip",
      "release": "rocky 10",
      "fixedVersion": "0:1.13-4.el10_2",
      "fix": "RLSA-2026:61625",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-61625",
      "released": "2026-09-01T12:09:39Z"
    },
    {
      "platform": "linux",
      "product": "gzip",
      "release": "rocky 8",
      "fixedVersion": "0:1.9-15.el8_10",
      "fix": "RLSA-2026:65998",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-65998",
      "released": "2026-09-10T06:01:10Z"
    },
    {
      "platform": "linux",
      "product": "gzip",
      "release": "rocky 9",
      "fixedVersion": "0:1.12-2.el9_8",
      "fix": "RLSA-2026:61623",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-61623",
      "released": "2026-09-01T06:05:33Z"
    },
    {
      "platform": "linux",
      "product": "gzip",
      "release": "sles 15.7",
      "fixedVersion": "1.10-150200.16.1",
      "fix": "SUSE-SU-2026:3592-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-3592-1",
      "released": "2026-08-12T09:15:32Z"
    },
    {
      "platform": "linux",
      "product": "gzip",
      "release": "sles 16.0",
      "fixedVersion": "1.13-160000.4.1",
      "fix": "SUSE-SU-2026:23550-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-23550-1",
      "released": "2026-08-27T12:45:01Z"
    },
    {
      "platform": "linux",
      "product": "gzip-win32",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.6-5ubuntu1.2\u002Besm1",
      "fix": "gzip-win32 1.6-5ubuntu1.2\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-gzip-win32-1.6-5ubuntu1.2-esm1",
      "released": "2026-06-29T05:16:00Z"
    },
    {
      "platform": "linux",
      "product": "gzip-win32",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1.10-0ubuntu4.1\u002Besm1",
      "fix": "gzip-win32 1.10-0ubuntu4.1\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-gzip-win32-1.10-0ubuntu4.1-esm1",
      "released": "2026-06-29T05:16:00Z"
    },
    {
      "platform": "linux",
      "product": "gzip-win32",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1.10-4ubuntu4.2",
      "fix": "gzip-win32 1.10-4ubuntu4.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-gzip-win32-1.10-4ubuntu4.2",
      "released": "2026-07-07T15:29:03Z"
    },
    {
      "platform": "linux",
      "product": "gzip-win32",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "1.12-1ubuntu3.2",
      "fix": "gzip-win32 1.12-1ubuntu3.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-gzip-win32-1.12-1ubuntu3.2",
      "released": "2026-07-07T15:29:06Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}