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Case File

CVE-2021-33640

MEDIUM · CVSS 6.2 EPSS 0.65%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-12-19 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 6.2. See the original NVD description below for full technical details.

CVE
CVE-2021-33640
Severity
MEDIUM
CVSS
6.2
EPSS
0.65%

Original NVD Description

After tar_close(), libtar.c releases the memory pointed to by pointer t. After tar_close() is called in the list() function, it continues to use pointer t: free_longlink_longname(t->th_buf) . As a result, the released memory is used (use-after-free).

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