{"id":"CVE-2023-5992","aliases":["ALPINE-CVE-2023-5992","ALSA-2024:0966","ALSA-2024:0967","AZL-34088","AZL-35077","BELL-CVE-2023-5992","CLSA-2026-1779190223","DEBIAN-CVE-2023-5992","DLA-4004-1","EUVD-2023-58259","GHSA-554m-v42f-hcq9","MGASA-2024-0101","RHSA-2024:0966","RHSA-2024:0967","RLSA-2024:0966","RLSA-2024:0967","SUSE-SU-2024:1402-1","SUSE-SU-2024:1402-2","SUSE-SU-2024:1625-1","SUSE-SU-2024:1773-1","SUSE-SU-2025:02754-1","SUSE-SU-2025:20530-1","SUSE-SU-2025:20671-1","UBUNTU-CVE-2023-5992","USN-7346-1","openSUSE-SU-2024:13765-1"],"status":"published","title":"Opensc: side-channel leaks while stripping encryption pkcs#1 padding","description":"A vulnerability was found in OpenSC where PKCS#1 encryption padding removal is not implemented as side-channel resistant. 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l":"https://ubuntu.com/security/CVE-2023-40661","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2024-8443","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2024-45615","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2024-45616","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2024-45617","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2024-45618","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2024-45619","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2024-45620","tags":["report"]},{"url":"","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2023-5992","title":"Opensc: side-channel leaks while stripping encryption pkcs#1 padding","description":"A vulnerability was found in OpenSC where PKCS#1 encryption padding removal is not implemented as side-channel resistant. This issue may result in the potential leak of private data.","status":"published","published":"2024-01-31T14:05:07.63Z","modified":"2026-11-05T11:36:31.126Z","cvss":[{"version":"3.1","score":5.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-203"],"updated_at":"2026-11-05T13:18:22.408512Z"}],"euvd":[{"id":"EUVD-2023-58259","description":"A vulnerability was found in OpenSC where PKCS#1 encryption padding removal is not implemented as side-channel resistant. This issue may result in the potential leak of private data.","status":"published","published":"2024-01-31T14:05:07Z","modified":"2026-11-05T11:36:31Z","cvss":[{"version":"3.1","score":5.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"medium"}],"updated_at":"2026-11-05T13:14:14.11293Z"}],"ghsa":[{"id":"GHSA-554m-v42f-hcq9","title":"A vulnerability was found in OpenSC where PKCS#1 encryption padding removal is not implemented as...","description":"A vulnerability was found in OpenSC where PKCS#1 encryption padding removal is not implemented as side-channel resistant. This issue may result in the potential leak of private data.","status":"published","published":"2024-01-31T15:30:20Z","modified":"2026-03-19T05:03:06Z","cvss":[{"version":"3.1","score":5.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"medium"}],"cwes":["CWE-200","CWE-203"],"updated_at":"2026-11-02T15:06:42.326312Z"}],"nvd":[{"id":"CVE-2023-5992","description":"A vulnerability was found in OpenSC where PKCS#1 encryption padding removal is not implemented as side-channel resistant. This issue may result in the potential leak of private data.","status":"published","published":"2024-01-31T14:15:48.147Z","modified":"2026-11-05T12:17:35.373Z","cvss":[{"version":"3.1","score":5.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-203"],"updated_at":"2026-11-05T16:36:40.983114Z"}],"osv":[{"id":"ALPINE-CVE-2023-5992","description":"A vulnerability was found in OpenSC where PKCS#1 encryption padding removal is not implemented as side-channel resistant. This issue may result in the potential leak of private data.","status":"published","published":"2024-01-31T14:15:48.147Z","modified":"2026-11-03T06:32:44.270948775Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-03T07:17:02.90744Z"},{"id":"AZL-34088","title":"CVE-2023-5992 affecting package opensc for versions less than 0.23.0-3","description":"A vulnerability was found in OpenSC where PKCS#1 encryption padding removal is not implemented as side-channel resistant. This issue may result in the potential leak of private data.","status":"published","published":"2024-01-31T14:15:48Z","modified":"2026-04-21T04:27:02.577754Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:28:03.821827Z"},{"id":"AZL-35077","title":"CVE-2023-5992 affecting package opensc for versions less than 0.25.1-3","description":"A vulnerability was found in OpenSC where PKCS#1 encryption padding removal is not implemented as side-channel resistant. This issue may result in the potential leak of private data.","status":"published","published":"2024-01-31T14:15:48Z","modified":"2026-04-21T04:56:34.077667Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:28:04.173658Z"},{"id":"BELL-CVE-2023-5992","status":"published","published":"2024-01-31T05:57:08.349852Z","modified":"2026-01-26T09:34:39.804153Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:28:19.288949Z"},{"id":"CVE-2023-5992","title":"Opensc: side-channel leaks while stripping encryption pkcs#1 padding","description":"A vulnerability was found in OpenSC where PKCS#1 encryption padding removal is not implemented as side-channel resistant. This issue may result in the potential leak of private data.","status":"published","published":"2024-01-31T14:05:07.63Z","modified":"2026-11-07T02:30:45.780698817Z","cvss":[{"version":"3.1","score":5.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"medium"}],"cwes":["CWE-203"],"updated_at":"2026-11-07T03:07:52.010191Z"},{"id":"DEBIAN-CVE-2023-5992","description":"A vulnerability was found in OpenSC where PKCS#1 encryption padding removal is not implemented as side-channel resistant. This issue may result in the potential leak of private data.","status":"published","published":"2024-01-31T14:15:48.147Z","modified":"2026-10-26T18:03:10.309004239Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:41.533064Z"},{"id":"RHSA-2024:0966","title":"Red Hat Security Advisory: opensc security update","status":"published","published":"2024-09-16T17:50:07Z","modified":"2026-03-18T11:34:42.350309Z","cvss":[{"version":"3.1","score":5.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"medium"}],"updated_at":"2026-11-02T15:53:12.787505Z"},{"id":"RHSA-2024:0967","title":"Red Hat Security Advisory: opensc security update","status":"published","published":"2024-09-16T17:50:16Z","modified":"2026-03-18T11:34:43.036484Z","cvss":[{"version":"3.1","score":5.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"medium"}],"updated_at":"2026-11-02T15:53:12.787505Z"},{"id":"RLSA-2024:0966","title":"Moderate: opensc security update","description":"The OpenSC set of libraries and utilities provides support for working with smart cards. OpenSC focuses on cards that support cryptographic operations and enables their use for authentication, mail encryption, or digital signatures.\n\nSecurity Fix(es):\n\n* OpenSC: Side-channel leaks while stripping encryption PKCS#1 padding (CVE-2023-5992)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","status":"published","published":"2025-05-07T19:13:03.633594Z","modified":"2025-05-07T20:08:45.531194Z","cvss":[{"version":"3.1","score":5.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"medium"}],"updated_at":"2026-11-02T15:53:24.63379Z"},{"id":"RLSA-2024:0967","title":"Moderate: opensc security update","description":"The OpenSC set of libraries and utilities provides support for working with smart cards. OpenSC focuses on cards that support cryptographic operations and enables their use for authentication, mail encryption, or digital signatures.\n\nSecurity Fix(es):\n\n* OpenSC: Side-channel leaks while stripping encryption PKCS#1 padding (CVE-2023-5992)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","status":"published","published":"2025-05-07T19:11:34.309952Z","modified":"2025-05-07T19:38:06.426394Z","cvss":[{"version":"3.1","score":5.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"medium"}],"updated_at":"2026-11-02T15:53:24.63379Z"},{"id":"UBUNTU-CVE-2023-5992","description":"A vulnerability was found in OpenSC where PKCS#1 encryption padding removal is not implemented as side-channel resistant. This issue may result in the potential leak of private data.","status":"published","published":"2024-01-31T14:15:00Z","modified":"2026-02-04T04:28:36.995066Z","cvss":[{"version":"3.1","score":5.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"medium"},{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T16:54:41.555387Z"},{"id":"ALSA-2024:0966","title":"Moderate: opensc security update","description":"The OpenSC set of libraries and utilities provides support for working with smart cards. OpenSC focuses on cards that support cryptographic operations and enables their use for authentication, mail encryption, or digital signatures.\n\nSecurity Fix(es):\n\n* OpenSC: Side-channel leaks while stripping encryption PKCS#1 padding (CVE-2023-5992)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","status":"published","published":"2024-02-26T00:00:00Z","modified":"2026-10-29T11:31:39.532124902Z","updated_at":"2026-11-02T15:27:52.553233Z"},{"id":"ALSA-2024:0967","title":"Moderate: opensc security update","description":"The OpenSC set of libraries and utilities provides support for working with smart cards. OpenSC focuses on cards that support cryptographic operations and enables their use for authentication, mail encryption, or digital signatures.\n\nSecurity Fix(es):\n\n* OpenSC: Side-channel leaks while stripping encryption PKCS#1 padding (CVE-2023-5992)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","status":"published","published":"2024-02-26T00:00:00Z","modified":"2026-10-29T11:02:27.459561129Z","updated_at":"2026-11-02T15:27:52.553233Z"},{"id":"CLSA-2026-1779190223","title":"opensc: Fix of 5 CVEs","description":"- CVE-2023-5992: implement constant-time PKCS#1 v1.5 depadding to prevent Bleichenbacher/Marvin-style timing attacks\n- CVE-2025-49010: fix stack buffer overflow write in iso7816 GET RESPONSE\n- CVE-2025-66037: fix out-of-bounds heap read in sc_pkcs15_pubkey_from_spki_fields\n- CVE-2025-66038: fix buffer over-read in sc_compacttlv_find_tag\n- CVE-2025-66215: fix stack buffer overflow write in card-oberthur auth_compute_signature and auth_read_record","status":"published","published":"2026-05-19T11:30:52Z","modified":"2026-06-01T00:32:34.147791695Z","updated_at":"2026-11-02T15:43:45.090939Z"},{"id":"DLA-4004-1","title":"opensc - security update","status":"published","published":"2024-12-28T00:00:00Z","modified":"2026-03-09T01:19:21.029361Z","updated_at":"2026-11-02T15:46:12.203458Z"},{"id":"MGASA-2024-0101","title":"Updated opensc packages fix security vulnerability","description":"Side-channel leaks while stripping encryption PKCS#1.5 padding in\nOpenSC. (CVE-2023-5992)\n","status":"published","published":"2024-03-31T03:27:58Z","modified":"2026-04-16T04:43:58.074975792Z","updated_at":"2026-11-02T15:49:42.684501Z"},{"id":"openSUSE-SU-2024:13765-1","title":"opensc-0.25.0-1.1 on GA media","description":"These are all security issues fixed in the opensc-0.25.0-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2025-05-07T18:15:32.861182Z","updated_at":"2026-11-02T16:58:36.327643Z"},{"id":"SUSE-SU-2024:1402-1","title":"Security update for opensc","description":"This update for opensc fixes the following issues:\n\n- CVE-2023-5992: Fixed side-channel leaks while stripping encryption PKCS#1 padding (bsc#1219386)\n","status":"published","published":"2024-04-23T14:52:08Z","modified":"2026-02-04T04:16:24.606248Z","updated_at":"2026-11-02T15:53:54.652421Z"},{"id":"SUSE-SU-2024:1402-2","title":"Security update for opensc","description":"This update for opensc fixes the following issues:\n\n- CVE-2023-5992: Fixed side-channel leaks while stripping encryption PKCS#1 padding (bsc#1219386)\n","status":"published","published":"2024-04-23T14:52:24Z","modified":"2026-02-04T03:04:20.50738Z","updated_at":"2026-11-02T15:53:54.652421Z"},{"id":"SUSE-SU-2024:1625-1","title":"Security update for opensc","description":"This update for opensc fixes the following issues:\n\n- CVE-2023-5992: Fixed a side-channel leaks while stripping encryption PKCS#1 padding (bsc#1219386)\n","status":"published","published":"2024-05-13T14:26:51Z","modified":"2026-02-04T03:10:23.423135Z","updated_at":"2026-11-02T15:53:54.652421Z"},{"id":"SUSE-SU-2024:1773-1","title":"Security update for opensc","description":"This update for opensc fixes the following issues:\n\n- CVE-2023-5992: Fixed a side-channel leaks while stripping encryption PKCS#1 padding (bsc#1219386)\n","status":"published","published":"2024-05-24T10:08:24Z","modified":"2026-02-04T03:10:48.738747Z","updated_at":"2026-11-02T15:53:54.652421Z"},{"id":"SUSE-SU-2025:02754-1","title":"Security update for opensc","description":"This update for opensc fixes the following issues:\n\n- CVE-2023-5992: Fixed side-channel leaks while stripping encryption PKCS#1 padding (bsc#1219386).\n","status":"published","published":"2025-08-12T07:35:08Z","modified":"2026-02-04T04:02:07.883001Z","updated_at":"2026-11-02T15:53:57.111474Z"},{"id":"SUSE-SU-2025:20530-1","title":"Security update for opensc","description":"This update for opensc fixes the following issues:\n\n- CVE-2023-5992: Fixed side-channel leaks while stripping \n  encryption PKCS#1 padding (bsc#1219386)\n","status":"published","published":"2025-08-01T09:26:53Z","modified":"2026-03-23T04:48:58.451873Z","updated_at":"2026-11-02T15:53:59.92114Z"},{"id":"SUSE-SU-2025:20671-1","title":"Security update for opensc","description":"This update for opensc fixes the following issues:\n\n- CVE-2023-5992: Side-channel leaks while stripping encryption PKCS#1 padding (bsc#1219386).\n- CVE-2024-8443: Heap buffer overflow in OpenPGP driver when generating key (bsc#1230364).\n- CVE-2024-45620: Incorrect handling of the length of buffers or files in pkcs15init (bsc#1230076).\n- CVE-2024-45619: Incorrect handling length of buffers or files in libopensc (bsc#1230075).\n- CVE-2024-45618: Uninitialized values after incorrect or missing checking return values of functions in pkcs15init (bsc#1230074).\n- CVE-2024-45617: Uninitialized values after incorrect or missing checking return values of functions in libopensc (bsc#1230073).\n- CVE-2024-45616: Uninitialized values after incorrect check or usage of APDU response values in libopensc (bsc#1230072).\n- CVE-2024-45615: Usage of uninitialized values in libopensc and pkcs15init (bsc#1230071).\n","status":"published","published":"2025-09-05T12:16:37Z","modified":"2026-03-23T04:48:22.027844Z","updated_at":"2026-11-02T15:53:59.92114Z"},{"id":"USN-7346-1","title":"opensc vulnerabilities","description":"It was discovered that OpenSC did not correctly handle certain memory\noperations, which could lead to a use-after-free vulnerability. An\nattacker could possibly use this issue to cause a denial of service or\nexecute arbitrary code. This issue only affected Ubuntu 16.04 LTS,\nUbuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2021-42780)\n\nIt was discovered that OpenSC did not correctly handle certain memory\noperations, which could lead to a stack buffer overflow. An attacker\ncould possibly use this issue to cause a denial of service or execute\narbitrary code. This issue only affected Ubuntu 20.04 LTS. (CVE-2021-42782)\n\nIt was discovered that OpenSC did not correctly handle the length of\ncertain buffers, which could lead to a out-of-bounds access vulnerability.\nAn attacker could possibly use this issue to cause a denial of service or\nexecute arbitrary code. This issue only affected Ubuntu 16.04 LTS,\nUbuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2023-2977)\n\nDeepanjan Pal discovered that OpenSC did not correctly authenticate a zero\nlength PIN. A physically proximate attacker could possibly use this issue\nto gain unauthorized access to certain systems. This issue only affected \nUbuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2023-40660)\n\nIt was discovered that OpenSC did not correctly handle certain memory\noperations. A physically proximate attacker could possibly use this issue\nto compromise key generation, certificate loading and other card\nmanagement operations. This issue only affected Ubuntu 20.04 LTS and\nUbuntu 22.04 LTS. (CVE-2023-40661)\n\nHubert Kario, Michal Shagam and Eyal Ronen discovered that OpenSC had a\ntiming side-channel and incorrectly handled RSA padding. An attacker\ncould possibly use this issue to recover sensitive information. This issue\nonly affected Ubuntu 22.04 LTS. (CVE-2023-5992)\n\nMatteo Marini discovered that OpenSC did not properly manage memory due to\ncertain uninitialized variables. A physically proximate attacker could\npossibly use this issue to gain unauthorized access to certain systems.\nThis issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS,\nUbuntu 24.04 LTS and Ubuntu 24.10. (CVE-2024-45615)\n\nMatteo Marini discovered that OpenSC did not correctly handle certain\nmemory operations. A physically proximate attacker could possibly use this\nissue to gain unauthorized access to certain systems. This issue only\naffected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS and\nUbuntu 24.10. (CVE-2024-45616, CVE-2024-45617)\n\nMatteo Marini discovered that OpenSC did not correctly handle certain\nmemory operations. A physically proximate attacker could possibly use this\nissue to gain unauthorized access to certain systems.\n(CVE-2024-45618, CVE-2024-45620)\n\nMatteo Marini discovered that OpenSC did not correctly handle certain\nmemory operations. A physically proximate attacker could possibly use this\nissue to gain unauthorized access to certain systems. This issue only\naffected Ubuntu 22.04 LTS, Ubuntu 24.04 LTS and Ubuntu 24.10.\n(CVE-2024-45619)\n\nIt was discovered that OpenSC did not correctly handle certain memory\noperations, which could lead to a buffer overflow. A physically\nproximate attacker could possibly use this issue to compromise card\nmanagement operations during enrollment and modification. This issue only\naffected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS and\nUbuntu 24.10. (CVE-2024-8443)\n","status":"published","published":"2025-03-12T05:37:20Z","modified":"2026-06-25T13:32:08.287860187Z","updated_at":"2026-11-02T16:58:19.988474Z"}]}}