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CVE-2021-33640

CVE-2021-33640

CVSS 6.2 MEDIUMEPSS 0.6%CWE-416
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).
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Produtos afetados
openEuler · openEuler 20.03 LTS SP1openEuler · openEuler 20.03 LTS SP3openEuler · openEuler 22.03 LTS

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Referências
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4S4PJRCJLEAWN2EKXGLSOBTL7O57V7NC/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7WX5YE66CT7Y5C2HTHXSFDKQWYWYWJ2T/https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2021-33640&packageName=libtar