vulnerability
Red Hat: CVE-2021-33640: libtar: fixes for CVE-2021-33645 and CVE-2021-33646 introduced new use-after-free bugs in libtar
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 10 | (AV:N/AC:L/Au:N/C:C/I:C/A:C) | Dec 19, 2022 | Jul 9, 2025 | Jul 10, 2025 |
Severity
10
CVSS
(AV:N/AC:L/Au:N/C:C/I:C/A:C)
Published
Dec 19, 2022
Added
Jul 9, 2025
Modified
Jul 10, 2025
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).
Solution
no-fix-redhat-rpm-package
References
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