{"id":"CVE-2021-46828","aliases":["ALPINE-CVE-2021-46828","ALSA-2022:8400","BELL-CVE-2021-46828","DEBIAN-CVE-2021-46828","DLA-3071-1","DSA-5200-1","EUVD-2021-33483","GHSA-x62c-6mxr-74fh","JLSEC-2026-1289","MGASA-2022-0288","OESA-2022-1795","RHBA-2022:2065","RHSA-2022:8400","RLSA-2022:8400","SUSE-SU-2022:2991-1","SUSE-SU-2022:3305-1","SUSE-SU-2022:3791-1","UBUNTU-CVE-2021-46828","USN-5538-1","openSUSE-SU-2024:12278-1"],"status":"published","title":"In libtirpc before 1.3.3rc1, remote attackers could exhaust the file descriptors of a process...","description":"In libtirpc before 1.3.3rc1, remote attackers could exhaust the file descriptors of a process that uses libtirpc because idle TCP connections are mishandled. 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connections.","severity":{"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","from":"nvd"},"epss":{"day":"2026-11-10","score":0.03204,"percentile":0.88254,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-755","CWE-770","CWE-835"],"published":"2022-07-20T00:00:00Z","modified":"2026-10-29T11:30:44Z","fixes":[{"ecosystem":"Alpine:v3.13","package":"libtirpc","fixed_in":["1.3.1-r1"],"sources":["osv"]},{"ecosystem":"Alpine:v3.14","package":"libtirpc","fixed_in":["1.3.2-r1"],"sources":["osv"]},{"ecosystem":"Alpine:v3.15","package":"libtirpc","fixed_in":["1.3.2-r1"],"sources":["osv"]},{"ecosystem":"Alpine:v3.16","package":"libtirpc","fixed_in":["1.3.2-r1"],"sources":["osv"]},{"ecosystem":"Alpine:v3.17","package":"libtirpc","fixed_in":["1.3.2-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.18","package":"libtirpc","fixed_in":["1.3.2-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.19","package":"libtirpc","fixed_in":["1.3.2-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.20","package":"libtirpc","fixed_in":["1.3.2-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.21","package":"libtirpc","fixed_in":["1.3.2-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"libtirpc","fixed_in":["1.3.2-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"libtirpc","fixed_in":["1.3.2-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"libtirpc","fixed_in":["1.3.2-r2"],"sources":["osv"]},{"ecosystem":"AlmaLinux:9","package":"libtirpc","fixed_in":["1.3.3-0.el9"],"sources":["osv"]},{"ecosystem":"AlmaLinux:9","package":"libtirpc-devel","fixed_in":["1.3.3-0.el9"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"libtirpc","fixed_in":["1.3.2-2.1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"libtirpc","fixed_in":["1.3.2-2.1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"libtirpc","fixed_in":["1.3.2-2.1"],"sources":["osv"]},{"ecosystem":"Debian:10","package":"libtirpc","fixed_in":["1.1.4-0.4+deb10u1"],"sources":["osv"]},{"ecosystem":"Debian:11","package":"libtirpc","fixed_in":["1.3.1-1+deb11u1"],"sources":["osv"]},{"ecosystem":"Julia","package":"libtirpc_jll","fixed_in":["1.3.7+0"],"sources":["osv"]},{"ecosystem":"Mageia:8","package":"libtirpc","fixed_in":["1.3.3-1.mga8"],"sources":["osv"]},{"ecosystem":"openEuler:20.03-LTS-SP1","package":"libtirpc","fixed_in":["1.2.6-2.oe1"],"sources":["osv"]},{"ecosystem":"openEuler:20.03-LTS-SP3","package":"libtirpc","fixed_in":["1.2.6-2.oe1"],"sources":["osv"]},{"ecosystem":"openEuler:22.03-LTS","package":"libtirpc","fixed_in":["1.3.2-2.oe2203"],"sources":["osv"]},{"ecosystem":"Red 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libtirpc before 1.3.3rc1, remote attackers could exhaust the file descriptors of a process that uses libtirpc because idle TCP connections are mishandled. This can, in turn, lead to an svc_run infinite loop without accepting new connections.","status":"published","published":"2022-07-20T00:00:00Z","modified":"2026-10-14T12:12:14.52Z","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","assessor":"adp"}],"cwes":["CWE-755"],"updated_at":"2026-11-02T14:33:02.930115Z"}],"euvd":[{"id":"EUVD-2021-33483","description":"In libtirpc before 1.3.3rc1, remote attackers could exhaust the file descriptors of a process that uses libtirpc because idle TCP connections are mishandled. This can, in turn, lead to an svc_run infinite loop without accepting new connections.","status":"published","published":"2022-07-20T00:00:00Z","modified":"2026-10-14T12:12:14Z","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":"2026-11-02T17:27:15.969628Z"}],"ghsa":[{"id":"GHSA-x62c-6mxr-74fh","title":"In libtirpc before 1.3.3rc1, remote attackers could exhaust the file descriptors of a process...","description":"In libtirpc before 1.3.3rc1, remote attackers could exhaust the file descriptors of a process that uses libtirpc because idle TCP connections are mishandled. This can, in turn, lead to an svc_run infinite loop without accepting new connections.","status":"published","published":"2022-07-21T00:00:34Z","modified":"2026-10-14T15:32:17Z","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-755","CWE-770"],"updated_at":"2026-11-02T15:13:25.439244Z"}],"nvd":[{"id":"CVE-2021-46828","description":"In libtirpc before 1.3.3rc1, remote attackers could exhaust the file descriptors of a process that uses libtirpc because idle TCP connections are mishandled. This can, in turn, lead to an svc_run infinite loop without accepting new connections.","status":"published","published":"2022-07-20T06:15:07.907Z","modified":"2026-10-14T13:17:12.797Z","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","assessor":"primary"},{"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":"secondary"}],"cwes":["CWE-755","CWE-835"],"updated_at":"2026-11-02T14:07:06.501652Z"}],"osv":[{"id":"ALPINE-CVE-2021-46828","description":"In libtirpc before 1.3.3rc1, remote attackers could exhaust the file descriptors of a process that uses libtirpc because idle TCP connections are mishandled. This can, in turn, lead to an svc_run infinite loop without accepting new connections.","status":"published","published":"2022-07-20T06:15:07.907Z","modified":"2026-10-23T17:17:56.233323529Z","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":"2026-11-02T15:27:48.646074Z"},{"id":"BELL-CVE-2021-46828","title":"CVE-2021-46828 does not affect BellSoft software","status":"withdrawn","published":"2023-08-31T12:14:30.275147Z","modified":"2026-01-26T10:04:56.454172Z","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":"2026-11-02T15:28:16.5265Z"},{"id":"CVE-2021-46828","description":"In libtirpc before 1.3.3rc1, remote attackers could exhaust the file descriptors of a process that uses libtirpc because idle TCP connections are mishandled. This can, in turn, lead to an svc_run infinite loop without accepting new connections.","status":"published","published":"2022-07-20T06:15:07.907Z","modified":"2026-04-16T04:40:11.360779146Z","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":"2026-11-02T15:44:22.18434Z"},{"id":"DEBIAN-CVE-2021-46828","description":"In libtirpc before 1.3.3rc1, remote attackers could exhaust the file descriptors of a process that uses libtirpc because idle TCP connections are mishandled. This can, in turn, lead to an svc_run infinite loop without accepting new connections.","status":"published","published":"2022-07-20T06:15:07.907Z","modified":"2026-10-15T09:47:30.59986775Z","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":"2026-11-02T15:45:35.799676Z"},{"id":"JLSEC-2026-1289","description":"In libtirpc before 1.3.3rc1, remote attackers could exhaust the file descriptors of a process that uses libtirpc because idle TCP connections are mishandled. This can, in turn, lead to an `svc_run` infinite loop without accepting new connections.","status":"published","published":"2026-08-13T09:49:53.975Z","modified":"2026-08-13T10:00:07.508282565Z","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":"2026-11-02T15:47:18.159338Z"},{"id":"OESA-2022-1795","title":"libtirpc security update","description":"Libtirpc is a Transport-Independent RPC library for Linux\r\n\r\nSecurity Fix(es):\r\n\r\nIn libtirpc before 1.3.3rc1, remote attackers could exhaust the file descriptors of a process that uses libtirpc because idle TCP connections are mishandled. This can, in turn, lead to an svc_run infinite loop without accepting new connections.(CVE-2021-46828)","status":"published","published":"2022-07-30T11:05:04Z","modified":"2026-08-18T01:16:53.60348813Z","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":"2026-11-02T15:52:39.528805Z"},{"id":"RHBA-2022:2065","title":"Red Hat Bug Fix Advisory: libtirpc bug fix and enhancement update","status":"published","published":"2024-09-16T06:54:23Z","modified":"2025-11-22T12:28:33Z","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":"2026-11-02T15:52:58.636919Z"},{"id":"RHSA-2022:8400","title":"Red Hat Security Advisory: libtirpc security update","status":"published","published":"2024-09-16T06:54:30Z","modified":"2026-06-26T12:22:18.812991252Z","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":"2026-11-02T15:53:10.139266Z"},{"id":"RLSA-2022:8400","title":"Moderate: libtirpc security update","description":"The libtirpc packages contain SunLib's implementation of transport-independent remote procedure call (TI-RPC) documentation, which includes a library required by programs in the nfs-utils and rpcbind packages.\n\nSecurity Fix(es):\n\n* libtirpc: DoS vulnerability with lots of connections (CVE-2021-46828)\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 9.1 Release Notes linked from the References section.","status":"published","published":"2022-11-15T06:23:29Z","modified":"2026-02-05T10:30:09.831394Z","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":"2026-11-02T15:53:24.322216Z"},{"id":"UBUNTU-CVE-2021-46828","description":"In libtirpc before 1.3.3rc1, remote attackers could exhaust the file descriptors of a process that uses libtirpc because idle TCP connections are mishandled. This can, in turn, lead to an svc_run infinite loop without accepting new connections.","status":"published","published":"2022-07-20T06:15:00Z","modified":"2026-04-22T13:04:53.050825Z","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":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":"2026-11-02T15:54:30.277322Z"},{"id":"ALSA-2022:8400","title":"Moderate: libtirpc security update","description":"The libtirpc packages contain SunLib's implementation of transport-independent remote procedure call (TI-RPC) documentation, which includes a library required by programs in the nfs-utils and rpcbind packages.\n\nSecurity Fix(es):\n\n* libtirpc: DoS vulnerability with lots of connections (CVE-2021-46828)\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":"2022-11-15T00:00:00Z","modified":"2026-10-29T11:30:44.164669429Z","updated_at":"2026-11-02T15:27:51.655726Z"},{"id":"DLA-3071-1","title":"libtirpc - security update","status":"published","published":"2022-08-11T00:00:00Z","modified":"2026-03-09T01:22:13.887791Z","updated_at":"2026-11-02T15:46:11.189256Z"},{"id":"DSA-5200-1","title":"libtirpc - security update","status":"published","published":"2022-08-07T00:00:00Z","modified":"2026-03-09T02:09:19.069063Z","updated_at":"2026-11-02T15:46:17.543497Z"},{"id":"MGASA-2022-0288","title":"Updated libitrpc packages fix security vulnerability","description":"It was discovered that libtirpc incorrectly handled certain inputs. An\nattacker could possibly use this issue to cause a denial of service\n(CVE-2021-46828).\n","status":"published","published":"2022-08-20T10:04:13Z","modified":"2026-04-16T04:42:50.377913808Z","updated_at":"2026-11-02T15:49:41.849028Z"},{"id":"openSUSE-SU-2024:12278-1","title":"libtirpc-devel-1.3.3-1.1 on GA media","description":"These are all security issues fixed in the libtirpc-devel-1.3.3-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T02:47:24.130947Z","updated_at":"2026-11-02T16:58:35.485255Z"},{"id":"SUSE-SU-2022:2991-1","title":"Security update for libtirpc","description":"This update for libtirpc fixes the following issues:\n\n- CVE-2021-46828: Fixed an uncontrolled file descriptor consumption,\n  which could be exploited by remote attackers to prevent applications\n  using the library from accepting new connections (bsc#1201680).\n\nNon-security fixes:\n\n- Exclude ipv6 addresses in client protocol version 2 code (bsc#1200800)\n- Fix memory leak in params.r_addr assignement (bsc#1198752)\n","status":"published","published":"2022-09-01T14:05:36Z","modified":"2026-02-04T03:03:32.483348Z","updated_at":"2026-11-02T15:53:50.965375Z"},{"id":"SUSE-SU-2022:3305-1","title":"Security update for libtirpc","description":"This update for libtirpc fixes the following issues:\n\n- CVE-2021-46828: Fixed denial of service vulnerability with lots of connections (bsc#1201680).\n","status":"published","published":"2022-09-19T09:46:14Z","modified":"2026-02-04T03:03:20.525997Z","updated_at":"2026-11-02T15:53:51.440565Z"},{"id":"SUSE-SU-2022:3791-1","title":"Security update for libtirpc","description":"This update for libtirpc fixes the following issues:\n\n- CVE-2021-46828: Fixed denial of service vulnerability with lots of connections (bsc#1201680).\n\n- Exclude ipv6 addresses in client protocol version 2 code (bsc#1200800)\n","status":"published","published":"2022-10-27T07:49:44Z","modified":"2026-02-04T03:34:50.519349Z","updated_at":"2026-11-02T15:53:51.440565Z"},{"id":"USN-5538-1","title":"libtirpc vulnerability","description":"It was discovered that libtirpc incorrectly handled certain inputs.\nAn attacker could possibly use this issue to cause a denial of service.\n","status":"published","published":"2022-07-28T14:40:41Z","modified":"2026-04-27T16:14:40.352767Z","updated_at":"2026-11-02T16:58:16.20937Z"}]}}