Fix CVE(s): CVE-2026-76844

{
  "id": "f1e78c4be4523c824ebd78ab628abb341f83da7dbc8ca08fca1bc165996158af",
  "url": "https://osv.dev/vulnerability/CLSA-2026-1791506807",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Fix CVE(s): CVE-2026-76844",
    "summary": "* SECURITY UPDATE: heap buffer overflow after a failed write - debian/patches/CVE-2026-76844.patch: in gzwrite.c reset strm.next_in/avail_in when gz_comp() fails in gz_write(). - CVE-2026-76844",
    "evidence": "osv:CLSA-2026-1791506807",
    "products": [
      {
        "name": {
          "value": "lib32z1",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1:1.2.11.dfsg-1+deb10u2+tuxcare.els1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "lib32z1-dev",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1:1.2.11.dfsg-1+deb10u2+tuxcare.els1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "zlib1g",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1:1.2.11.dfsg-1+deb10u2+tuxcare.els1",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "zlib1g-dev",
          "evidence": "/affected/3/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1:1.2.11.dfsg-1+deb10u2+tuxcare.els1",
            "evidence": "/affected/3/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CLSA-2026-1791506807",
      "aliases": [
        "CLSA-2026-1791506807"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1:1.2.11.dfsg-1+deb10u2+tuxcare.els1"
                }
              ]
            }
          ],
          "package": {
            "name": "lib32z1",
            "purl": "pkg:deb/tuxcare/lib32z1?distro=debian-10",
            "ecosystem": "TuxCare:Debian:10"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/debian10els/CLSA-2026-1791506807.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1:1.2.11.dfsg-1+deb10u2+tuxcare.els1"
                }
              ]
            }
          ],
          "package": {
            "name": "lib32z1-dev",
            "purl": "pkg:deb/tuxcare/lib32z1-dev?distro=debian-10",
            "ecosystem": "TuxCare:Debian:10"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/debian10els/CLSA-2026-1791506807.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1:1.2.11.dfsg-1+deb10u2+tuxcare.els1"
                }
              ]
            }
          ],
          "package": {
            "name": "zlib1g",
            "purl": "pkg:deb/tuxcare/zlib1g?distro=debian-10",
            "ecosystem": "TuxCare:Debian:10"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/debian10els/CLSA-2026-1791506807.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1:1.2.11.dfsg-1+deb10u2+tuxcare.els1"
                }
              ]
            }
          ],
          "package": {
            "name": "zlib1g-dev",
            "purl": "pkg:deb/tuxcare/zlib1g-dev?distro=debian-10",
            "ecosystem": "TuxCare:Debian:10"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/debian10els/CLSA-2026-1791506807.json"
          }
        }
      ],
      "modified": "2026-10-26T09:31:53.393678749Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-76844"
      ],
      "references": [
        "https://errata.tuxcare.com/els_os/debian10els/CLSA-2026-1791506807.html",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-76844"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-76844",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 448850,
  "published_at": "2026-10-09T00:47:00+00:00"
}