CVE-2020-21913
MEDIUM
5.5
CVSS Score
Published: September 20, 2021 at 01:55 PM UTC
Updated: October 14, 2026 at 10:17 AM UTC
3 products affected across 3 vendorsDebian LinuxInternational Components for UnicodeInternational Components for Unicode
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Severity
MEDIUM5.5
Exploit prediction
EPSS 1%
Description
International 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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Debian Linux· Debiandrupal
95%v < 66.1
Affected range stops below 66.1, so it looks safe — our inference, not a vendor statement
All versions
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (5)
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/unicode-org/icu/pull/886Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2021/10/msg00008.htmlx_refsource_MISCExploitVendor Advisory
Source: [email protected]
https://unicode-org.atlassian.net/browse/ICU-20850Vendor Advisoryx_refsource_DEBIANThird Party Advisory
Source: [email protected]
https://www.debian.org/security/2021/dsa-5014Source: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
https://cert-portal.siemens.com/productcert/html/ssa-398330.htmlCVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-416
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