{"id":"CVE-2020-36646","aliases":["DEBIAN-CVE-2020-36646","DLA-3290-1","EUVD-2020-24096","GHSA-2mm8-pf66-mch4","MGASA-2023-0046","UBUNTU-CVE-2020-36646","USN-6048-1"],"status":"published","title":"MediaArea ZenLib Ztring.cpp Date_From_Seconds_1970_Local unknown vulnerability","description":"A vulnerability classified as problematic has been found in MediaArea ZenLib up to 0.4.38. This affects the function Ztring::Date_From_Seconds_1970_Local of the file Source/ZenLib/Ztring.cpp. The manipulation of the argument Value leads to unchecked return value to null pointer dereference. Upgrading to version 0.4.39 is able to address this issue. The identifier of the patch is 6475fcccd37c9cf17e0cfe263b5fe0e2e47a8408. It is recommended to upgrade the affected component. The identifier VDB-217629 was assigned to this vulnerability.","severity":{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.01277,"percentile":0.7017,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-476","CWE-690"],"published":"2023-01-07T19:34:51Z","modified":"2026-10-26T12:01:52Z","fixes":[{"ecosystem":"Debian:12","package":"libzen","fixed_in":["0.4.39-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"libzen","fixed_in":["0.4.39-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"libzen","fixed_in":["0.4.39-1"],"sources":["osv"]},{"ecosystem":"Debian:10","package":"libzen","fixed_in":["0.4.37-1+deb10u1"],"sources":["osv"]},{"ecosystem":"Mageia:8","package":"libzen","fixed_in":["0.4.38-1.1.mga8"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:14.04:LTS","package":"libzen","fixed_in":["0.4.29-1ubuntu0.1~esm1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:16.04:LTS","package":"libzen","fixed_in":["0.4.32-1ubuntu0.16.04.1+esm1"],"sources":["osv"]},{"ecosystem":"Ubuntu:18.04:LTS","package":"libzen","fixed_in":["0.4.37-1ubuntu0.18.04.1"],"sources":["osv"]},{"ecosystem":"Ubuntu:20.04:LTS","package":"libzen","fixed_in":["0.4.37-1ubuntu0.20.04.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"libzen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4.39-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"libzen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4.39-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"libzen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4.39-1"}]}]},{"source":"osv","ecosystem":"Debian:10","package":"libzen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4.37-1+deb10u1"}]}],"versions":["0.4.37-1"]},{"source":"osv","ecosystem":"Mageia:8","package":"libzen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4.38-1.1.mga8"}]}]},{"source":"osv","ecosystem":"Ubuntu:Pro:14.04:LTS","package":"libzen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4.29-1ubuntu0.1~esm1"}]}],"versions":["0.4.29-1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"libzen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4.32-1ubuntu0.16.04.1+esm1"}]}],"versions":["0.4.29-1ubuntu2","0.4.32-1","0.4.32-1ubuntu0.16.04.1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"libzen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4.37-1ubuntu0.18.04.1"}]}],"versions":["0.4.36-1","0.4.37-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"libzen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4.37-1ubuntu0.20.04.1"}]}],"versions":["0.4.37-1","0.4.37-1build1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:14.04:LTS","package":"libzen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4.29-1ubuntu0.1~esm1"}]}],"versions":["0.4.29-1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"libzen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4.32-1ubuntu0.16.04.1+esm1"}]}],"versions":["0.4.29-1ubuntu2","0.4.32-1","0.4.32-1ubuntu0.16.04.1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"libzen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4.37-1ubuntu0.18.04.1"}]}],"versions":["0.4.36-1","0.4.37-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"libzen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4.37-1ubuntu0.20.04.1"}]}],"versions":["0.4.37-1","0.4.37-1build1"]}],"products":[{"vendor":"mediaarea","product":"zenlib"}],"references":[{"url":"https://vuldb.com/?id.217629","tags":["vdb-entry","technical-description","x_transferred","Third Party Advisory","VDB Entry","advisory","report"]},{"url":"https://vuldb.com/?ctiid.217629","tags":["signature","permissions-required","x_transferred","Third Party Advisory","VDB Entry","advisory","report"]},{"url":"https://github.com/MediaArea/ZenLib/pull/119","tags":["issue-tracking","x_transferred","Patch","fix","report"]},{"url":"https://github.com/MediaArea/ZenLib/commit/6475fcccd37c9cf17e0cfe263b5fe0e2e47a8408","tags":["patch","x_transferred","Patch","fix","report"]},{"url":"https://github.com/MediaArea/ZenLib/releases/tag/v0.4.39","tags":["patch","x_transferred","Release Notes","advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-36646"},{"url":"https://github.com/advisories/GHSA-2mm8-pf66-mch4"},{"url":"https://security-tracker.debian.org/tracker/CVE-2020-36646","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2023-0046.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=31492","tags":["report"]},{"url":"https://www.debian.org/lts/security/2023/dla-3290","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2020-36646","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-36646","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-6048-1","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2020-36646","title":"MediaArea ZenLib Ztring.cpp Date_From_Seconds_1970_Local unknown vulnerability","description":"A vulnerability classified as problematic has been found in MediaArea ZenLib up to 0.4.38. This affects the function Ztring::Date_From_Seconds_1970_Local of the file Source/ZenLib/Ztring.cpp. The manipulation of the argument Value leads to unchecked return value to null pointer dereference. Upgrading to version 0.4.39 is able to address this issue. The identifier of the patch is 6475fcccd37c9cf17e0cfe263b5fe0e2e47a8408. It is recommended to upgrade the affected component. The identifier VDB-217629 was assigned to this vulnerability.","status":"published","published":"2023-01-07T19:34:51.643Z","modified":"2024-08-04T17:30:08.335Z","cvss":[{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"cna"},{"version":"3.0","score":3.5,"vector":"CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"cna"},{"version":"2.0","score":2.3,"vector":"AV:A/AC:M/Au:S/C:N/I:N/A:P","assessor":"cna"}],"cwes":["CWE-690"],"updated_at":"2026-11-02T14:35:55.128961Z"}],"euvd":[{"id":"EUVD-2020-24096","description":"A vulnerability classified as problematic has been found in MediaArea ZenLib up to 0.4.38. This affects the function Ztring::Date_From_Seconds_1970_Local of the file Source/ZenLib/Ztring.cpp. The manipulation of the argument Value leads to unchecked return value to null pointer dereference. Upgrading to version 0.4.39 is able to address this issue. The identifier of the patch is 6475fcccd37c9cf17e0cfe263b5fe0e2e47a8408. It is recommended to upgrade the affected component. The identifier VDB-217629 was assigned to this vulnerability.","status":"published","published":"2023-01-07T19:34:51Z","modified":"2024-08-04T17:30:08Z","cvss":[{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"low"}],"updated_at":"2026-11-03T03:07:03.010139Z"}],"ghsa":[{"id":"GHSA-2mm8-pf66-mch4","title":"A vulnerability classified as problematic has been found in MediaArea ZenLib up to 0.4.38. This...","description":"A vulnerability classified as problematic has been found in MediaArea ZenLib up to 0.4.38. This affects the function Ztring::Date_From_Seconds_1970_Local of the file Source/ZenLib/Ztring.cpp. The manipulation of the argument Value leads to unchecked return value to null pointer dereference. Upgrading to version 0.4.39 is able to address this issue. The name of the patch is 6475fcccd37c9cf17e0cfe263b5fe0e2e47a8408. It is recommended to upgrade the affected component. The identifier VDB-217629 was assigned to this vulnerability.","status":"published","published":"2023-01-07T21:30:38Z","modified":"2023-01-28T05:03:48Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-476","CWE-690"],"updated_at":"2026-11-02T14:44:03.106355Z"}],"nvd":[{"id":"CVE-2020-36646","description":"A vulnerability classified as problematic has been found in MediaArea ZenLib up to 0.4.38. This affects the function Ztring::Date_From_Seconds_1970_Local of the file Source/ZenLib/Ztring.cpp. The manipulation of the argument Value leads to unchecked return value to null pointer dereference. Upgrading to version 0.4.39 is able to address this issue. The identifier of the patch is 6475fcccd37c9cf17e0cfe263b5fe0e2e47a8408. It is recommended to upgrade the affected component. The identifier VDB-217629 was assigned to this vulnerability.","status":"published","published":"2023-01-07T20:15:09.523Z","modified":"2026-06-17T03:15:53.113Z","cvss":[{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":2.3,"vector":"AV:A/AC:M/Au:S/C:N/I:N/A:P","level":"low","assessor":"secondary"}],"cwes":["CWE-690","CWE-476"],"updated_at":"2026-11-02T14:06:47.286386Z"}],"osv":[{"id":"CVE-2020-36646","description":"A vulnerability classified as problematic has been found in MediaArea ZenLib up to 0.4.38. This affects the function Ztring::Date_From_Seconds_1970_Local of the file Source/ZenLib/Ztring.cpp. The manipulation of the argument Value leads to unchecked return value to null pointer dereference. Upgrading to version 0.4.39 is able to address this issue. The identifier of the patch is 6475fcccd37c9cf17e0cfe263b5fe0e2e47a8408. It is recommended to upgrade the affected component. The identifier VDB-217629 was assigned to this vulnerability.","status":"published","published":"2023-01-07T20:15:09.523Z","modified":"2026-10-20T14:13:50.695989981Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:16.936975Z"},{"id":"DEBIAN-CVE-2020-36646","description":"A vulnerability classified as problematic has been found in MediaArea ZenLib up to 0.4.38. This affects the function Ztring::Date_From_Seconds_1970_Local of the file Source/ZenLib/Ztring.cpp. The manipulation of the argument Value leads to unchecked return value to null pointer dereference. Upgrading to version 0.4.39 is able to address this issue. The identifier of the patch is 6475fcccd37c9cf17e0cfe263b5fe0e2e47a8408. It is recommended to upgrade the affected component. The identifier VDB-217629 was assigned to this vulnerability.","status":"published","published":"2023-01-07T20:15:09.523Z","modified":"2026-10-26T12:01:52.72767639Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:34.019707Z"},{"id":"UBUNTU-CVE-2020-36646","description":"A vulnerability classified as problematic has been found in MediaArea ZenLib up to 0.4.38. This affects the function Ztring::Date_From_Seconds_1970_Local of the file Source/ZenLib/Ztring.cpp. The manipulation of the argument Value leads to unchecked return value to null pointer dereference. Upgrading to version 0.4.39 is able to address this issue. The identifier of the patch is 6475fcccd37c9cf17e0cfe263b5fe0e2e47a8408. It is recommended to upgrade the affected component. The identifier VDB-217629 was assigned to this vulnerability.","status":"published","published":"2023-01-07T20:15:00Z","modified":"2026-04-22T12:42:10.988855Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"},{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"low"}],"updated_at":"2026-11-02T15:54:25.179924Z"},{"id":"DLA-3290-1","title":"libzen - security update","status":"published","published":"2023-01-29T00:00:00Z","modified":"2026-03-09T01:18:27.843396Z","updated_at":"2026-11-02T15:46:11.734021Z"},{"id":"MGASA-2023-0046","title":"Updated libzen packages fix security vulnerability","description":"A vulnerability classified as problematic has been found in MediaArea\nZenLib up to 0.4.38. This affects the function\nZtring::Date_From_Seconds_1970_Local of the file Source/ZenLib/Ztring.cpp.\nThe manipulation of the argument Value leads to unchecked return value to\nnull pointer dereference. (CVE-2020-36646)\n","status":"published","published":"2023-02-14T22:43:23Z","modified":"2026-04-16T04:42:42.813305471Z","updated_at":"2026-11-02T15:49:42.263076Z"},{"id":"USN-6048-1","title":"ZenLib vulnerability","description":"It was discovered that ZenLib doesn't check the return value of a specific\noperation before using it. An attacker could use a specially crafted input\nto crash programs using the library.\n","status":"published","published":"2023-04-28T10:01:57Z","modified":"2026-06-29T13:50:51.060099824Z","updated_at":"2026-11-02T16:58:16.738762Z"}]}}