Use-After-Free Vulnerability in Busybox's Awk Applet

CVE-2021-42381

What is CVE-2021-42381?

A use-after-free vulnerability exists in the awk applet of Busybox, which may allow attackers to trigger denial of service conditions or potentially execute arbitrary code. This vulnerability arises during the processing of specially crafted awk patterns in the hash_init function. If exploited, this flaw could impact system stability and security, making it essential for users to apply patches and updates.

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