Use After Free in Unicode International Components For
CVE-2020-21913
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.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.012 (67.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 67th percentile — 67.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
- Unicode International Components For
- Debian Linux — versions 9.0, 10.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- unicode-org.atlassian.net/browse/ICU-20850 (Exploit, Vendor Advisory)
- github.com/unicode-org/icu/pull/886 (Patch, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2021/10/msg00008.html (mailing-list, Mailing List, Third Party Advisory)
- www.debian.org/security/2021/dsa-5014 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-21913?
- CVE-2020-21913 is a medium-severity vulnerability in Unicode International Components For, classified under Use After Free. CVSS score: 5.5/10. Published 2021-09-20.
- How severe is CVE-2020-21913?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2020-21913 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.