{"id":"CVE-2020-29362","aliases":["ALPINE-CVE-2020-29362","ALSA-2021:1609","BELL-CVE-2020-29362","DEBIAN-CVE-2020-29362","DLA-2513-1","DSA-4822-1","EUVD-2020-21736","GHSA-5wpq-43j2-6qwc","MGASA-2021-0041","OESA-2021-1024","RHSA-2021:1609","RLSA-2021:1609","SUSE-SU-2022:2405-1","SUSE-SU-2022:2405-2","SUSE-SU-2022:2871-1","UBUNTU-CVE-2020-29362","USN-4677-1"],"status":"published","title":"Moderate: p11-kit security, bug fix, and enhancement update","description":"An issue was discovered in p11-kit 0.21.1 through 0.23.21. A heap-based buffer over-read has been discovered in the RPC protocol used by thep11-kit server/remote commands and the client library. When the remote entity supplies a byte array through a serialized PKCS#11 function call, the receiving entity may allow the reading of up to 4 bytes of memory past the heap allocation.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.0227,"percentile":0.83183,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-125"],"published":"2020-12-16T13:32:57Z","modified":"2026-10-29T11:00:30Z","fixes":[{"ecosystem":"Alpine:v3.10","package":"p11-kit","fixed_in":["0.23.16.1-r1"],"sources":["osv"]},{"ecosystem":"Alpine:v3.11","package":"p11-kit","fixed_in":["0.23.18.1-r1"],"sources":["osv"]},{"ecosystem":"Alpine:v3.12","package":"p11-kit","fixed_in":["0.23.22-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.13","package":"p11-kit","fixed_in":["0.23.22-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.14","package":"p11-kit","fixed_in":["0.23.22-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.15","package":"p11-kit","fixed_in":["0.23.22-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.16","package":"p11-kit","fixed_in":["0.23.22-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.17","package":"p11-kit","fixed_in":["0.23.22-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.18","package":"p11-kit","fixed_in":["0.23.22-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.19","package":"p11-kit","fixed_in":["0.23.22-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.20","package":"p11-kit","fixed_in":["0.23.22-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.21","package":"p11-kit","fixed_in":["0.23.22-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"p11-kit","fixed_in":["0.23.22-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"p11-kit","fixed_in":["0.23.22-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"p11-kit","fixed_in":["0.23.22-r0"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"p11-kit","fixed_in":["0.23.22-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"p11-kit","fixed_in":["0.23.22-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"p11-kit","fixed_in":["0.23.22-1"],"sources":["osv"]},{"ecosystem":"SUSE:Linux 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issue was discovered in p11-kit 0.21.1 through 0.23.21. A heap-based buffer over-read has been discovered in the RPC protocol used by thep11-kit server/remote commands and the client library. When the remote entity supplies a byte array through a serialized PKCS#11 function call, the receiving entity may allow the reading of up to 4 bytes of memory past the heap allocation.","status":"published","published":"2020-12-16T13:32:57Z","modified":"2026-10-14T09:40:05.626Z","updated_at":"2026-11-02T14:35:55.460269Z"}],"euvd":[{"id":"EUVD-2020-21736","description":"An issue was discovered in p11-kit 0.21.1 through 0.23.21. A heap-based buffer over-read has been discovered in the RPC protocol used by thep11-kit server/remote commands and the client library. When the remote entity supplies a byte array through a serialized PKCS#11 function call, the receiving entity may allow the reading of up to 4 bytes of memory past the heap allocation.","status":"published","published":"2020-12-16T13:32:57Z","modified":"2026-10-14T09:40:05Z","updated_at":"2026-11-02T17:27:16.85534Z"}],"nvd":[{"id":"CVE-2020-29362","description":"An issue was discovered in p11-kit 0.21.1 through 0.23.21. A heap-based buffer over-read has been discovered in the RPC protocol used by thep11-kit server/remote commands and the client library. When the remote entity supplies a byte array through a serialized PKCS#11 function call, the receiving entity may allow the reading of up to 4 bytes of memory past the heap allocation.","status":"published","published":"2020-12-16T14:15:12.777Z","modified":"2026-10-14T10:17:34.647Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:06:27.73474Z"}],"osv":[{"id":"ALPINE-CVE-2020-29362","description":"An issue was discovered in p11-kit 0.21.1 through 0.23.21. A heap-based buffer over-read has been discovered in the RPC protocol used by thep11-kit server/remote commands and the client library. When the remote entity supplies a byte array through a serialized PKCS#11 function call, the receiving entity may allow the reading of up to 4 bytes of memory past the heap allocation.","status":"published","published":"2020-12-16T14:15:12.777Z","modified":"2026-10-26T11:17:55.16690772Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:27:48.11886Z"},{"id":"BELL-CVE-2020-29362","title":"CVE-2020-29362 does not affect BellSoft software","status":"withdrawn","published":"2023-08-31T12:15:22.772507Z","modified":"2026-01-26T09:45:41.792202Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:28:15.925958Z"},{"id":"CVE-2020-29362","description":"An issue was discovered in p11-kit 0.21.1 through 0.23.21. A heap-based buffer over-read has been discovered in the RPC protocol used by thep11-kit server/remote commands and the client library. When the remote entity supplies a byte array through a serialized PKCS#11 function call, the receiving entity may allow the reading of up to 4 bytes of memory past the heap allocation.","status":"published","published":"2020-12-16T14:15:12.777Z","modified":"2026-10-20T10:53:14.289019254Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:16.612899Z"},{"id":"DEBIAN-CVE-2020-29362","description":"An issue was discovered in p11-kit 0.21.1 through 0.23.21. A heap-based buffer over-read has been discovered in the RPC protocol used by thep11-kit server/remote commands and the client library. When the remote entity supplies a byte array through a serialized PKCS#11 function call, the receiving entity may allow the reading of up to 4 bytes of memory past the heap allocation.","status":"published","published":"2020-12-16T14:15:12.777Z","modified":"2026-10-26T12:02:43.717966262Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:34.019707Z"},{"id":"OESA-2021-1024","title":"p11-kit security update","description":"Provides a way to load and enumerate PKCS#11 modules. Provides a standard configuration setup for installing PKCS#11 modules in such a way that they're discoverable. Also solves problems with coordinating the use of PKCS#11 by different components or libraries living in the same process.\\r\\n\\r\\n\r\nSecurity Fix(es):\\r\\n\\r\\n\r\nAn issue was discovered in p11-kit 0.21.1 through 0.23.21. Multiple integer overflows have been discovered in the array allocations in the p11-kit library and the p11-kit list command, where overflow checks are missing before calling realloc or calloc.(CVE-2020-29361)\\r\\n\\r\\n\nAn issue was discovered in p11-kit 0.21.1 through 0.23.21. A heap-based buffer over-read has been discovered in the RPC protocol used by thep11-kit server/remote commands and the client library. When the remote entity supplies a byte array through a serialized PKCS#11 function call, the receiving entity may allow the reading of up to 4 bytes of memory past the heap allocation.(CVE-2020-29362)\\r\\n\\r\\n\nAn issue was discovered in p11-kit 0.23.6 through 0.23.21. A heap-based buffer overflow has been discovered in the RPC protocol used by p11-kit server/remote commands and the client library. When the remote entity supplies a serialized byte array in a CK_ATTRIBUTE, the receiving entity may not allocate sufficient length for the buffer to store the deserialized value.(CVE-2020-29363)\\r\\n\\r\\n","status":"published","published":"2021-02-05T11:04:15Z","modified":"2026-08-18T01:15:07.51791335Z","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":"2026-11-02T15:52:38.987987Z"},{"id":"RHSA-2021:1609","title":"Red Hat Security Advisory: p11-kit security, bug fix, and enhancement update","status":"published","published":"2024-09-16T04:59:22Z","modified":"2026-10-15T10:01:48Z","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"}],"updated_at":"2026-11-02T15:53:08.071325Z"},{"id":"RLSA-2021:1609","title":"Moderate: p11-kit security, bug fix, and enhancement update","description":"The p11-kit packages provide a mechanism to manage PKCS#11 modules. The p11-kit-trust subpackage includes a PKCS#11 trust module that provides certificate anchors and black lists based on configuration files.\n\nThe following packages have been upgraded to a later upstream version: p11-kit (0.23.22). (BZ#1887853)\n\nSecurity Fix(es):\n\n* p11-kit: integer overflow when allocating memory for arrays or attributes and object identifiers (CVE-2020-29361)\n\n* p11-kit: out-of-bounds read in p11_rpc_buffer_get_byte_array function in rpc-message.c (CVE-2020-29362)\n\n* p11-kit: out-of-bounds write in p11_rpc_buffer_get_byte_array_value function in rpc-message.c (CVE-2020-29363)\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.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the Rocky Linux 8.4 Release Notes linked from the References section.","status":"published","published":"2021-05-18T05:38:50Z","modified":"2026-02-04T11:30:10.242218Z","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":"2026-11-02T15:53:23.969672Z"},{"id":"UBUNTU-CVE-2020-29362","description":"An issue was discovered in p11-kit 0.21.1 through 0.23.21. A heap-based buffer over-read has been discovered in the RPC protocol used by thep11-kit server/remote commands and the client library. When the remote entity supplies a byte array through a serialized PKCS#11 function call, the receiving entity may allow the reading of up to 4 bytes of memory past the heap allocation.","status":"published","published":"2020-12-16T14:15:00Z","modified":"2026-04-22T12:39:53.864776Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:54:24.541803Z"},{"id":"ALSA-2021:1609","title":"Moderate: p11-kit security, bug fix, and enhancement update","description":"The p11-kit packages provide a mechanism to manage PKCS#11 modules. The p11-kit-trust subpackage includes a PKCS#11 trust module that provides certificate anchors and black lists based on configuration files.\n\nThe following packages have been upgraded to a later upstream version: p11-kit (0.23.22). (BZ#1887853)\n\nSecurity Fix(es):\n\n* p11-kit: integer overflow when allocating memory for arrays or attributes and object identifiers (CVE-2020-29361)\n\n* p11-kit: out-of-bounds read in p11_rpc_buffer_get_byte_array function in rpc-message.c (CVE-2020-29362)\n\n* p11-kit: out-of-bounds write in p11_rpc_buffer_get_byte_array_value function in rpc-message.c (CVE-2020-29363)\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.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.","status":"published","published":"2021-05-18T05:38:50Z","modified":"2026-10-29T11:00:30.480442787Z","updated_at":"2026-11-02T15:27:51.196609Z"},{"id":"DLA-2513-1","title":"p11-kit - security update","status":"published","published":"2021-01-04T00:00:00Z","modified":"2026-03-09T01:18:47.930575Z","updated_at":"2026-11-02T15:46:10.712745Z"},{"id":"DSA-4822-1","title":"p11-kit - security update","status":"published","published":"2021-01-01T00:00:00Z","modified":"2026-03-09T02:08:40.796113Z","updated_at":"2026-11-02T15:46:17.19998Z"},{"id":"MGASA-2021-0041","title":"Updated p11-kit packages fix security vulnerabilities","description":"Multiple integer overflows have been discovered in the array allocations in\nthe p11-kit library and the p11-kit list command, where overflow checks are\nmissing before calling realloc or calloc (CVE-2020-29361).\n\nA heap-based buffer over-read has been discovered in the RPC protocol used by\nthe p11-kit server/remote commands and the client library. When the remote\nentity supplies a byte array through a serialized PKCS#11 function call, the\nreceiving entity may allow the reading of up to 4 bytes of memory past the\nheap allocation (CVE-2020-29362).\n\nA heap-based buffer overflow has been discovered in the RPC protocol used by\np11-kit server/remote commands and the client library. When the remote entity\nsupplies a serialized byte array in a CK_ATTRIBUTE, the receiving entity may\nnot allocate sufficient length for the buffer to store the deserialized value\n(CVE-2020-29363).\n","status":"published","published":"2021-01-17T16:07:01Z","modified":"2026-04-16T04:42:32.160053753Z","updated_at":"2026-11-02T15:49:41.509337Z"},{"id":"SUSE-SU-2022:2405-1","title":"Security update for p11-kit","description":"This update for p11-kit fixes the following issues:\n\n- CVE-2020-29362: Fixed a 4 byte overread in p11_rpc_buffer_get_byte_array which could lead to crashes (bsc#1180065)\n","status":"published","published":"2022-07-15T09:48:03Z","modified":"2026-02-04T02:38:22.316461Z","updated_at":"2026-11-02T15:53:50.965375Z"},{"id":"SUSE-SU-2022:2405-2","title":"Security update for p11-kit","description":"This update for p11-kit fixes the following issues:\n\n- CVE-2020-29362: Fixed a 4 byte overread in p11_rpc_buffer_get_byte_array which could lead to crashes (bsc#1180065)\n","status":"published","published":"2022-07-15T09:48:09Z","modified":"2026-02-04T04:14:03.472802Z","updated_at":"2026-11-02T15:53:50.965375Z"},{"id":"SUSE-SU-2022:2871-1","title":"Security update for p11-kit","description":"This update for p11-kit fixes the following issues:\n\n- CVE-2020-29362: Fixed a 4 byte overread that could lead to crashes (bsc#1180065)\n","status":"published","published":"2022-08-23T07:26:38Z","modified":"2026-02-04T02:29:12.380422Z","updated_at":"2026-11-02T15:53:50.965375Z"},{"id":"USN-4677-1","title":"p11-kit vulnerabilities","description":"David Cook discovered that p11-kit incorrectly handled certain memory\noperations. An attacker could use this issue to cause p11-kit to crash,\nresulting in a denial of service, or possibly execute arbitrary code.\n","status":"published","published":"2021-01-05T16:23:14Z","modified":"2026-04-22T10:10:19.752148Z","updated_at":"2026-11-02T16:58:15.159055Z"}]}}