CVE-2020-21913

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Summary

CVECVE-2020-21913
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-09-20 14:15:08 UTC
Updated2026-10-14 10:17:32 UTC
DescriptionInternational Components for Unicode (ICU-20850) v66.1 was discovered to contain a use after free bug in the pkg_createWithAssemblyCode function in the file tools/pkgdata/pkgdata.cpp.

Risk And Classification

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

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

Problem Types: CWE-416 | n/a

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
2.0[email protected]Primary4.3AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS v3.1 Breakdown

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

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

CVSS v2.0 Breakdown

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

AV:N/AC:M/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
Operating System Debian Debian Linux 9.0 All All All
Application Unicode International Components For Unicode 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
[SECURITY] [DLA 2784-1] icu security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
[ICU-20850] A Use After Free Bug - Unicode Consortium af854a3a-2127-422b-91ae-364da2661108 unicode-org.atlassian.net Exploit, Vendor Advisory
ICU-20850 Use LocalMemory for cmd to prevent use-after-free issue by jefgen · Pull Request #886 · unicode-org/icu · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Patch, Third Party Advisory
Debian -- Security Information -- DSA-5014-1 icu af854a3a-2127-422b-91ae-364da2661108 www.debian.org Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 178833 Debian Security Update for icu (DLA 2784-1)
  • 178915 Debian Security Update for icu (DSA 5014-1)
  • 198557 Ubuntu Security Notification for ICU Vulnerability (USN-5133-1)
  • 355687 Amazon Linux Security Advisory for icu : ALAS2-2023-2171
  • 355689 Amazon Linux Security Advisory for libicu60 : ALAS2-2023-2172
  • 501963 Alpine Linux Security Update for icu
  • 504009 Alpine Linux Security Update for icu
  • 591406 Siemens SIMATIC S7-1500 CPU GNU/Linux subsystem Multiple Vulnerabilities (SSB-439005, ICSA-22-104-13)
  • 671150 EulerOS Security Update for icu (EulerOS-SA-2021-2804)
  • 671186 EulerOS Security Update for icu (EulerOS-SA-2021-2932)
  • 671204 EulerOS Security Update for icu (EulerOS-SA-2022-1029)
  • 671212 EulerOS Security Update for icu (EulerOS-SA-2022-1009)
  • 671237 EulerOS Security Update for icu (EulerOS-SA-2022-1168)
  • 671308 EulerOS Security Update for icu (EulerOS-SA-2022-1226)
  • 671325 EulerOS Security Update for icu (EulerOS-SA-2022-1207)
  • 752559 SUSE Enterprise Linux Security Update for icu (SUSE-SU-2022:3140-1)
  • 752564 SUSE Enterprise Linux Security Update for icu (SUSE-SU-2022:3142-1)
  • 753166 SUSE Enterprise Linux Security Update for icu (SUSE-SU-2022:3141-1)
  • 755134 SUSE Enterprise Linux Security Update for icu73_2 (SUSE-SU-2023:3563-2)
  • 755187 SUSE Enterprise Linux Security Update for icu73_2 (SUSE-SU-2023:3563-3)

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