Low severity3.3NVD Advisory· Published Aug 24, 2022· Updated Jun 17, 2026
CVE-2021-4217
CVE-2021-4217
Description
A 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.
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Affected products
1Patches
Vulnerability mechanics
References
3- bugs.launchpad.net/ubuntu/+source/unzip/+bug/1957077nvdExploitIssue TrackingPatchThird Party Advisory
- bugzilla.redhat.com/show_bug.cginvdExploitIssue TrackingThird Party Advisory
- access.redhat.com/security/cve/CVE-2021-4217nvdThird Party Advisory
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