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UnratedFix available

Update of tzdata

Type: advisorySources: OSV

* New upstream 2026e version: - Manitoba moves to permanent -05 on 2026-10-31. - Canada’s Northwest Territories moved to permanent -06 on 2026-08-21. - Fix security, performance and porting bugs in zic and localtime. - Alberta moved to permanent -06 on 2026-06-18. - Morocco moves to permanent +00 on 2026-09-20. - More integer overflow bugs have been fixed in zic. - British Columbia moved to permanent -07 on 2026-03-09. - zic no longer mishandles a last transition to a new time type. - Some more overflow bugs have been fixed in zic. - Moldova has used EU transition times since 2022. - -DTZ_RUNTIME_LEAPS=0 disables runtime support for leap seconds. - TZif files are no longer limited to 50 bytes of abbreviations. - zic is no longer limited to 50 leap seconds. - Several integer overflow bugs have been fixed. - Several code changes for compatibility with FreeBSD. - New zone for Aysén Region in Chile which moves from -04/-03 to -03. - Paraguay adopted permanent -03 starting spring 2024. - Improve pre-1991 data for the Philippines. - Etc/Unknown is now reserved. - Improve historical data for Mexico, Mongolia, and Portugal. - System V names are now obsolescent. - The main data form now uses %z. - The code now conforms to RFC 8536 for early timestamps. - Support POSIX.1-2024, which removes asctime_r and ctime_r. - Assume POSIX.2-1992 or later for shell scripts. - SUPPORT_C89 now defaults to 1. * Revert POSIX conformance of old SysV names EST5EDT, CST6CDT, MST7MDT and PST8PDT (Revert-F

Products
tzdata
Affected versions
Not specified
Fixed versions
2026e-0+deb10u1+tuxcare.els1
CVEs
Not specified
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 11:24 UTC · Revision 1

Source evidence

Update of tzdata

core-osv · Original source

Published 20 Oct 2026, 18:02 UTC

* New upstream 2026e version: - Manitoba moves to permanent -05 on 2026-10-31. - Canada’s Northwest Territories moved to permanent -06 on 2026-08-21. - Fix security, performance and porting bugs in zic and localtime. - Alberta moved to permanent -06 on 2026-06-18. - Morocco moves to permanent +00 on 2026-09-20. - More integer overflow bugs have been fixed in zic. - British Columbia moved to permanent -07 on 2026-03-09. - zic no longer mishandles a last transition to a new time type. - Some more overflow bugs have been fixed in zic. - Moldova has used EU transition times since 2022. - -DTZ_RUNTIME_LEAPS=0 disables runtime support for leap seconds. - TZif files are no longer limited to 50 bytes of abbreviations. - zic is no longer limited to 50 leap seconds. - Several integer overflow bugs have been fixed. - Several code changes for compatibility with FreeBSD. - New zone for Aysén Region in Chile which moves from -04/-03 to -03. - Paraguay adopted permanent -03 starting spring 2024. - Improve pre-1991 data for the Philippines. - Etc/Unknown is now reserved. - Improve historical data for Mexico, Mongolia, and Portugal. - System V names are now obsolescent. - The main data form now uses %z. - The code now conforms to RFC 8536 for early timestamps. - Support POSIX.1-2024, which removes asctime_r and ctime_r. - Assume POSIX.2-1992 or later for shell scripts. - SUPPORT_C89 now defaults to 1. * Revert POSIX conformance of old SysV names EST5EDT, CST6CDT, MST7MDT and PST8PDT (Revert-F

osv:CLSA-2026-1792519351

tzdata

Fixed versions: 2026e-0+deb10u1+tuxcare.els1

Complete source record
{
  "id": "750b3c5132591de4bf7cf040931e0ed8c95dd0bf6c3252f45f9adcac8595133d",
  "url": "https://osv.dev/vulnerability/CLSA-2026-1792519351",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Update of tzdata",
    "summary": "* New upstream 2026e version: - Manitoba moves to permanent -05 on 2026-10-31. - Canada’s Northwest Territories moved to permanent -06 on 2026-08-21. - Fix security, performance and porting bugs in zic and localtime. - Alberta moved to permanent -06 on 2026-06-18. - Morocco moves to permanent +00 on 2026-09-20. - More integer overflow bugs have been fixed in zic. - British Columbia moved to permanent -07 on 2026-03-09. - zic no longer mishandles a last transition to a new time type. - Some more overflow bugs have been fixed in zic. - Moldova has used EU transition times since 2022. - -DTZ_RUNTIME_LEAPS=0 disables runtime support for leap seconds. - TZif files are no longer limited to 50 bytes of abbreviations. - zic is no longer limited to 50 leap seconds. - Several integer overflow bugs have been fixed. - Several code changes for compatibility with FreeBSD. - New zone for Aysén Region in Chile which moves from -04/-03 to -03. - Paraguay adopted permanent -03 starting spring 2024. - Improve pre-1991 data for the Philippines. - Etc/Unknown is now reserved. - Improve historical data for Mexico, Mongolia, and Portugal. - System V names are now obsolescent. - The main data form now uses %z. - The code now conforms to RFC 8536 for early timestamps. - Support POSIX.1-2024, which removes asctime_r and ctime_r. - Assume POSIX.2-1992 or later for shell scripts. - SUPPORT_C89 now defaults to 1. * Revert POSIX conformance of old SysV names EST5EDT, CST6CDT, MST7MDT and PST8PDT (Revert-F",
    "evidence": "osv:CLSA-2026-1792519351",
    "products": [
      {
        "name": {
          "value": "tzdata",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2026e-0+deb10u1+tuxcare.els1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CLSA-2026-1792519351",
      "aliases": [
        "CLSA-2026-1792519351"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2026e-0+deb10u1+tuxcare.els1"
                }
              ]
            }
          ],
          "package": {
            "name": "tzdata",
            "purl": "pkg:deb/tuxcare/tzdata?distro=debian-10",
            "ecosystem": "TuxCare:Debian:10"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/debian10els/CLSA-2026-1792519351.json"
          }
        }
      ],
      "modified": "2026-10-26T09:31:53.524250957Z",
      "provider": "osv",
      "references": [
        "https://errata.tuxcare.com/els_os/debian10els/CLSA-2026-1792519351.html"
      ]
    },
    "related_cves": [],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 448855,
  "published_at": "2026-10-20T18:02:39+00:00"
}