CVE-2020-27618

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2020-27618
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-02-26 23:15:11 UTC
Updated2026-10-14 10:17:33 UTC
DescriptionThe iconv function in the GNU C Library (aka glibc or libc6) 2.32 and earlier, when processing invalid multi-byte input sequences in IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 encodings, fails to advance the input state, which could lead to an infinite loop in applications, resulting in a denial of service, a different vulnerability from CVE-2016-10228.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

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

Problem Types: CWE-835 | n/a | CWE-835 CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
3.1ADPDECLARED5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
2.0[email protected]Primary2.1AV:L/AC:L/Au:N/C:N/I:N/A:P

CVSS v3.1 Breakdown

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

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

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial

AV:L/AC:L/Au:N/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 10.0 All All All
Application Gnu Glibc All All All All
Hardware Netapp 500f - All All All
Operating System Netapp 500f Firmware - All All All
Hardware Netapp A250 - All All All
Operating System Netapp A250 Firmware - All All All
Hardware Netapp H300e - All All All
Operating System Netapp H300e Firmware - All All All
Hardware Netapp H300s - All All All
Operating System Netapp H300s Firmware - All All All
Hardware Netapp H410c - All All All
Operating System Netapp H410c Firmware - All All All
Hardware Netapp H410s - All All All
Operating System Netapp H410s Firmware - All All All
Hardware Netapp H500e - All All All
Operating System Netapp H500e Firmware - All All All
Hardware Netapp H500s - All All All
Operating System Netapp H500s Firmware - All All All
Hardware Netapp H700e - All All All
Operating System Netapp H700e Firmware - All All All
Hardware Netapp H700s - All All All
Operating System Netapp H700s Firmware - All All All
Application Netapp Ontap Select Deploy Administration Utility - All All All
Application Oracle Communications Cloud Native Core Service Communication Proxy 1.14.0 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
glibc: Multiple vulnerabilities (GLSA 202107-07) — Gentoo security af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org Third Party Advisory
Oracle Critical Patch Update Advisory - April 2022 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Not Applicable, Third Party Advisory
CVE-2020-27618 GNU C Library (glibc) Vulnerability in NetApp Products | NetApp Product Security af854a3a-2127-422b-91ae-364da2661108 security.netapp.com Third Party Advisory
19519 – (CVE-2016-10228) iconv(1) with -c option hangs on illegal multi-byte sequences (CVE-2016-10228) af854a3a-2127-422b-91ae-364da2661108 sourceware.org Issue Tracking, Patch, Third Party Advisory
cert-portal.siemens.com/productcert/html/ssa-831302.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
Oracle Critical Patch Update Advisory - January 2022 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Patch, Third Party Advisory
26224 – iconv hangs when converting some invalid inputs from several IBM character sets af854a3a-2127-422b-91ae-364da2661108 sourceware.org Exploit, Issue Tracking, Third Party Advisory
[SECURITY] [DLA 3152-1] glibc security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 159188 Oracle Enterprise Linux Security Update for glibc (ELSA-2021-1585)
  • 159249 Oracle Enterprise Linux Security Update for glibc (ELSA-2021-9280)
  • 159295 Oracle Enterprise Linux Security Update for glibc (ELSA-2021-9344)
  • 174895 SUSE Enterprise Linux Security Update for glibc (SUSE-SU-2021:1165-1)
  • 181138 Debian Security Update for glibc (DLA 3152-1)
  • 198685 Ubuntu Security Notification for GNU C Library Vulnerabilities (USN-5310-1)
  • 239336 Red Hat Update for glibc (RHSA-2021:1585)
  • 352399 Amazon Linux Security Advisory for glibc: ALAS2-2021-1656
  • 375934 F5 BIG-IP Application Security Manager (ASM), Local Traffic Manager (LTM), Access Policy Manager (APM) glibc Vulnerability (K08641512)
  • 591406 Siemens SIMATIC S7-1500 CPU GNU/Linux subsystem Multiple Vulnerabilities (SSB-439005, ICSA-22-104-13)
  • 6140180 AWS Bottlerocket Security Update for glibc (GHSA-wjx7-44fw-ffxf)
  • 670286 EulerOS Security Update for glibc (EulerOS-SA-2021-1790)
  • 670325 EulerOS Security Update for glibc (EulerOS-SA-2021-1899)
  • 670616 EulerOS Security Update for glibc (EulerOS-SA-2021-2374)
  • 670842 EulerOS Security Update for glibc (EulerOS-SA-2021-1790)
  • 670928 EulerOS Security Update for glibc (EulerOS-SA-2021-2374)
  • 710069 Gentoo Linux glibc Multiple vulnerabilities (GLSA 202107-07)
  • 750341 OpenSUSE Security Update for glibc (openSUSE-SU-2021:0358-1)
  • 900238 CBL-Mariner Linux Security Update for glibc 2.28
  • 903476 Common Base Linux Mariner (CBL-Mariner) Security Update for glibc (3917)
  • 940275 AlmaLinux Security Update for glibc (ALSA-2021:1585)
  • 960868 Rocky Linux Security Update for glibc (RLSA-2021:1585)

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report