CVE-2021-4217

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Summary

CVECVE-2021-4217
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-08-24 16:15:00 UTC
Updated2022-11-29 15:45:00 UTC
DescriptionA flaw was found in unzip. The vulnerability occurs due to improper handling of Unicode strings, which can lead to a null pointer dereference. This flaw allows an attacker to input a specially crafted zip file, leading to a crash or code execution.

Risk And Classification

Problem Types: CWE-476

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Fedoraproject Fedora 35 All All All
Operating System Redhat Enterprise Linux 6.0 All All All
Operating System Redhat Enterprise Linux 7.0 All All All
Operating System Redhat Enterprise Linux 8.0 All All All
Operating System Redhat Enterprise Linux 9.0 All All All
Application Unzip Project Unzip 6.0 All All All

References

ReferenceSourceLinkTags
2044583 – (CVE-2021-4217) CVE-2021-4217 unzip: Null pointer dereference in Unicode strings code MISC bugzilla.redhat.com
Red Hat Customer Portal - Access to 24x7 support and knowledge MISC access.redhat.com
Bug #1957077 “SIGSEGV during processing of unicode string” : Bugs : unzip package : Ubuntu MISC bugs.launchpad.net
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 198984 Ubuntu Security Notification for unzip Vulnerabilities (USN-5673-1)
  • 296063 Oracle Solaris 11.4 Support Repository Update (SRU) 45.119.2 Missing (CPUAPR2022)
  • 354477 Amazon Linux Security Advisory for unzip : ALAS2022-2022-221
  • 354574 Amazon Linux Security Advisory for unzip : ALAS-2022-221
  • 354660 Amazon Linux Security Advisory for unzip : ALAS2-2023-1906
  • 355191 Amazon Linux Security Advisory for unzip : ALAS2023-2023-029
  • 502799 Alpine Linux Security Update for unzip
  • 672390 EulerOS Security Update for unzip (EulerOS-SA-2022-2747)
  • 672396 EulerOS Security Update for unzip (EulerOS-SA-2022-2782)
  • 672400 EulerOS Security Update for unzip (EulerOS-SA-2022-2809)
  • 672443 EulerOS Security Update for unzip (EulerOS-SA-2022-2834)
  • 672466 EulerOS Security Update for unzip (EulerOS-SA-2022-2860)
  • 903737 Common Base Linux Mariner (CBL-Mariner) Security Update for unzip (10708)
  • 903875 Common Base Linux Mariner (CBL-Mariner) Security Update for unzip (10680)
  • 905670 Common Base Linux Mariner (CBL-Mariner) Security Update for unzip (10708-1)
  • 906577 Common Base Linux Mariner (CBL-Mariner) Security Update for unzip (10708-3)
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