Update of tzdata
* 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. - Obsolescent settings like TZ="EST5EDT" now conform better to POSIX. - 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. - The “right” TZif files are no longer installed by default. - -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. * Revert POSIX conformance of old SysV names EST5EDT, CST6CDT, MST7MDT and PST8PDT, keeping them as links (patch from Ubuntu 2026e-0ubuntu0.22.04.1)
- Products
- tzdata
- Affected versions
- Not specified
- Fixed versions
- 2026e-0ubuntu0.18.04+tuxcare.els1
- CVEs
- Not specified
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 11:42 UTC · Revision 1
Source evidence
* 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. - Obsolescent settings like TZ="EST5EDT" now conform better to POSIX. - 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. - The “right” TZif files are no longer installed by default. - -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. * Revert POSIX conformance of old SysV names EST5EDT, CST6CDT, MST7MDT and PST8PDT, keeping them as links (patch from Ubuntu 2026e-0ubuntu0.22.04.1)
osv:CLSA-2026-1792515804
tzdata
Fixed versions: 2026e-0ubuntu0.18.04+tuxcare.els1
Complete source record
{
"id": "2ac7640df946761bf104865cd4ddbb295a330ecd0ac7b45b469aee83e4d5dde1",
"url": "https://osv.dev/vulnerability/CLSA-2026-1792515804",
"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. - Obsolescent settings like TZ=\"EST5EDT\" now conform better to POSIX. - 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. - The “right” TZif files are no longer installed by default. - -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. * Revert POSIX conformance of old SysV names EST5EDT, CST6CDT, MST7MDT and PST8PDT, keeping them as links (patch from Ubuntu 2026e-0ubuntu0.22.04.1)",
"evidence": "osv:CLSA-2026-1792515804",
"products": [
{
"name": {
"value": "tzdata",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2026e-0ubuntu0.18.04+tuxcare.els1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CLSA-2026-1792515804",
"aliases": [
"CLSA-2026-1792515804"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2026e-0ubuntu0.18.04+tuxcare.els1"
}
]
}
],
"package": {
"name": "tzdata",
"purl": "pkg:deb/tuxcare/tzdata?distro=ubuntu-18.04",
"ecosystem": "TuxCare:Ubuntu:18.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1792515804.json"
}
}
],
"modified": "2026-10-26T09:32:04.327887247Z",
"provider": "osv",
"references": [
"https://errata.tuxcare.com/els_os/ubuntu18.04els/CLSA-2026-1792515804.html"
]
},
"related_cves": [],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 449600,
"published_at": "2026-10-20T17:03:31+00:00"
}