CVE-2021-46828

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Summary

CVECVE-2021-46828
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-07-20 06:15:07 UTC
Updated2026-10-14 13:17:12 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem Types: CWE-755 | CWE-835 | n/a | CWE-755 CWE-755 Improper Handling of Exceptional Conditions

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1ADPDECLARED7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 10.0 All All All
Operating System Debian Debian Linux 11.0 All All All
Application Libtirpc Project Libtirpc All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified

References

ReferenceSourceLinkTags
cert-portal.siemens.com/productcert/html/ssa-398330.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
cert-portal.siemens.com/productcert/html/ssa-558014.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
CVE-2021-46828 libtirpc Vulnerability in NetApp Products | NetApp Product Security af854a3a-2127-422b-91ae-364da2661108 security.netapp.com Third Party Advisory
Debian -- Security Information -- DSA-5200-1 libtirpc af854a3a-2127-422b-91ae-364da2661108 www.debian.org Third Party Advisory
git.linux-nfs.org Git - steved/libtirpc.git/commit af854a3a-2127-422b-91ae-364da2661108 git.linux-nfs.org
Libtirpc: Denial of Service (GLSA 202210-33) — Gentoo security af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org Third Party Advisory
[SECURITY] [DLA 3071-1] libtirpc security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
cert-portal.siemens.com/productcert/html/ssa-561322.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.linux-nfs.org Git - steved/libtirpc.git/commit MITRE git.linux-nfs.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 160272 Oracle Enterprise Linux Security Update for libtirpc (ELSA-2022-8400)
  • 180920 Debian Security Update for libtirpc (DSA 5200-1)
  • 180934 Debian Security Update for libtirpc (DLA 3071-1)
  • 183921 Debian Security Update for libtirpc (CVE-2021-46828)
  • 198877 Ubuntu Security Notification for libtirpc Vulnerability (USN-5538-1)
  • 240880 Red Hat Update for libtirpc (RHSA-2022:8400)
  • 502471 Alpine Linux Security Update for libtirpc
  • 502473 Alpine Linux Security Update for libtirpc
  • 502739 Alpine Linux Security Update for libtirpc
  • 591406 Siemens SIMATIC S7-1500 CPU GNU/Linux subsystem Multiple Vulnerabilities (SSB-439005, ICSA-22-104-13)
  • 672104 EulerOS Security Update for libtirpc (EulerOS-SA-2022-2298)
  • 672119 EulerOS Security Update for libtirpc (EulerOS-SA-2022-2327)
  • 672186 EulerOS Security Update for libtirpc (EulerOS-SA-2022-2470)
  • 672312 EulerOS Security Update for libtirpc (EulerOS-SA-2022-2690)
  • 672315 EulerOS Security Update for libtirpc (EulerOS-SA-2022-2658)
  • 710665 Gentoo Linux Libtirpc Denial of Service Vulnerability (GLSA 202210-33)
  • 752532 SUSE Enterprise Linux Security Update for libtirpc (SUSE-SU-2022:2991-1)
  • 752599 SUSE Enterprise Linux Security Update for libtirpc (SUSE-SU-2022:3305-1)
  • 752744 SUSE Enterprise Linux Security Update for libtirpc (SUSE-SU-2022:3791-1)
  • 902595 Common Base Linux Mariner (CBL-Mariner) Security Update for libtirpc (10394)
  • 902598 Common Base Linux Mariner (CBL-Mariner) Security Update for libtirpc (10388)
  • 903992 Common Base Linux Mariner (CBL-Mariner) Security Update for libtirpc (10394-1)
  • 940795 AlmaLinux Security Update for libtirpc (ALSA-2022:8400)
  • 960540 Rocky Linux Security Update for libtirpc (RLSA-2022:8400)

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