CVE-2020-21913: Use After Free
First published: Mon Sep 20 2021(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/icu | 63.1-6+deb10u3 63.1-6+deb10u2 67.1-7 72.1-3 72.1-4 | |
| Unicode International Components For Unicode | <66.1 | |
| Debian Debian Linux | =9.0 | |
| Debian Debian Linux | =10.0 |
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Reference Links
- https://github.com/unicode-org/icu/pull/886
- https://unicode-org.atlassian.net/browse/ICU-20850
- https://github.com/unicode-org/icu/commit/727505bddab0bfd527f1db6697cb4d4f7febe4a9
- https://security-tracker.debian.org/tracker/CVE-2020-21913
- https://lists.debian.org/debian-lts-announce/2021/10/msg00008.html
- https://www.debian.org/security/2021/dsa-5014
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2020-21913.
What is the severity of CVE-2020-21913?
The severity of CVE-2020-21913 is medium with a severity value of 5.5.
Which software is affected by CVE-2020-21913?
The affected software is International Components for Unicode (ICU) version 66.1 and Debian Linux version 9.0 and 10.0.
What is the vulnerability description of CVE-2020-21913?
CVE-2020-21913 is a use after free bug in the pkg_createWithAssemblyCode function in the file tools/pkgdata/pkgdata.cpp in International Components for Unicode (ICU) version 66.1.
How can I fix CVE-2020-21913?
To fix CVE-2020-21913, update the affected software to the recommended versions: ICU version 63.1-6+deb10u3, 63.1-6+deb10u2, 67.1-7, 72.1-3, or 72.1-4.
- collector/security-tracker-debian
- collector/nvd-index
- agent/references
- agent/severity
- agent/author
- agent/weakness
- agent/description
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- agent/last-modified-date
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- collector/mitre-cve
- source/MITRE
- package-manager/debian
- vendor/unicode
- canonical/unicode international components for unicode
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/9.0
- version/debian debian linux/10.0