CVE-2021-3326

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Summary

CVECVE-2021-3326
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-01-27 20:15:14 UTC
Updated2026-10-14 10:17:41 UTC
DescriptionThe iconv function in the GNU C Library (aka glibc or libc6) 2.32 and earlier, when processing invalid input sequences in the ISO-2022-JP-3 encoding, fails an assertion in the code path and aborts the program, potentially resulting in a denial of service.

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-617 | n/a | CWE-617 CWE-617 Reachable Assertion

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
2.0[email protected]Primary5AV:N/AC:L/Au:N/C:N/I:N/A:P

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

CVSS v2.0 Breakdown

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

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Fujitsu M10-1 - All All All
Operating System Fujitsu M10-1 Firmware All All All All
Hardware Fujitsu M10-4 - All All All
Hardware Fujitsu M10-4s - All All All
Operating System Fujitsu M10-4s Firmware All All All All
Operating System Fujitsu M10-4 Firmware All All All All
Hardware Fujitsu M12-1 - All All All
Operating System Fujitsu M12-1 Firmware All All All All
Hardware Fujitsu M12-2 - All All All
Operating System Fujitsu M12-2 Firmware All All All All
Application Gnu Glibc All All All All
Application Netapp E-series Santricity Os Controller All All All All
Application Netapp Ontap Select Deploy Administration Utility - All All All
Application Oracle Communications Cloud Native Core Security Edge Protection Proxy 1.5.0 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
CVE-2021-3326 GNU C Library (glibc) Vulnerability in NetApp Products | NetApp Product Security af854a3a-2127-422b-91ae-364da2661108 security.netapp.com Third Party Advisory
oss-security - Re: glibc iconv crash with ISO-2022-JP-3 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List, Third Party Advisory
27256 – (CVE-2021-3326) Assertion failure in ISO-2022-JP-3 gconv module related to combining characters (CVE-2021-3326) af854a3a-2127-422b-91ae-364da2661108 sourceware.org Issue Tracking, 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
[SECURITY] [DLA 3152-1] glibc security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
sourceware.org Git - glibc.git/commit af854a3a-2127-422b-91ae-364da2661108 sourceware.org
sourceware.org Git - glibc.git/commit MITRE sourceware.org
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)
  • 180089 Debian Security Update for glibc (CVE-2021-3326)
  • 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)
  • 352247 Amazon Linux Security Advisory for glibc: ALAS2-2021-1615
  • 591406 Siemens SIMATIC S7-1500 CPU GNU/Linux subsystem Multiple Vulnerabilities (SSB-439005, ICSA-22-104-13)
  • 6140328 AWS Bottlerocket Security Update for glibc (GHSA-25f2-pcpq-93c6)
  • 670286 EulerOS Security Update for glibc (EulerOS-SA-2021-1790)
  • 670325 EulerOS Security Update for glibc (EulerOS-SA-2021-1899)
  • 670352 EulerOS Security Update for glibc (EulerOS-SA-2021-1872)
  • 670379 EulerOS Security Update for glibc (EulerOS-SA-2021-1946)
  • 670400 EulerOS Security Update for glibc (EulerOS-SA-2021-1925)
  • 670616 EulerOS Security Update for glibc (EulerOS-SA-2021-2374)
  • 670842 EulerOS Security Update for glibc (EulerOS-SA-2021-1790)
  • 670847 EulerOS Security Update for glibc (EulerOS-SA-2021-1946)
  • 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)
  • 900140 CBL-Mariner Linux Security Update for glibc 2.28
  • 903135 Common Base Linux Mariner (CBL-Mariner) Security Update for glibc (3835)
  • 940275 AlmaLinux Security Update for glibc (ALSA-2021:1585)
  • 960868 Rocky Linux Security Update for glibc (RLSA-2021:1585)

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