CVSS: 9.8EPSS: 0%CPEs: 5EXPL: 0CVE-2021-33640
https://notcve.org/view.php?id=CVE-2021-33640
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). Después de tar_close(), libtar.c libera la memoria a la que apunta el puntero t. Después de llamar a tar_close() en la función list(), continúa usando el puntero t: free_longlink_longname(t->th_buf). • 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 • CWE-416: Use After Free •
CVSS: 9.1EPSS: 0%CPEs: 7EXPL: 0CVE-2021-33643 – libtar: out-of-bounds read in gnu_longlink
https://notcve.org/view.php?id=CVE-2021-33643
An attacker who submits a crafted tar file with size in header struct being 0 may be able to trigger an calling of malloc(0) for a variable gnu_longlink, causing an out-of-bounds read. Un atacante que envía un archivo tar diseñado con el tamaño de la estructura de encabezado siendo 0 puede ser capaz de desencadenar una llamada de malloc(0) para una variable gnu_longlink, causando una lectura fuera de límites A flaw was found in libtar. This flaw allows an attacker who submits a crafted tar file with the size in the header struct being 0 to trigger a calling of malloc(0) for a variable gnu_longlink, causing an out-of-bounds read. • 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/5YSHZY753R7XW6CIKJVAWI373WW3YRRJ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7Q26QDNOJDOFYWMJWEIK5XR62M2FF6IJ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7WX5YE66CT7Y5C2HTHXSFDKQWYWYWJ2T https://lists.fedoraproject.org/archives/list/package-announce%40li • CWE-125: Out-of-bounds Read •
CVSS: 7.5EPSS: 0%CPEs: 7EXPL: 0CVE-2021-33645 – libtar: memory leak found in th_read() function
https://notcve.org/view.php?id=CVE-2021-33645
The th_read() function doesn’t free a variable t->th_buf.gnu_longlink after allocating memory, which may cause a memory leak. La función th_read() no libera una variable t-)th_buf.gnu_longlink después de asignar memoria, lo que puede causar una pérdida de memoria A flaw was found in libtar. This security vulnerability occurs because the th_read() function in libtar doesn’t free a variable t->th_buf.gnu_longlink after allocating memory, which may cause a memory leak. • 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/5YSHZY753R7XW6CIKJVAWI373WW3YRRJ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7Q26QDNOJDOFYWMJWEIK5XR62M2FF6IJ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7WX5YE66CT7Y5C2HTHXSFDKQWYWYWJ2T https://lists.fedoraproject.org/archives/list/package-announce%40li • CWE-401: Missing Release of Memory after Effective Lifetime •
CVSS: 8.1EPSS: 0%CPEs: 7EXPL: 0CVE-2021-33644 – libtar: out-of-bounds read in gnu_longname
https://notcve.org/view.php?id=CVE-2021-33644
An attacker who submits a crafted tar file with size in header struct being 0 may be able to trigger an calling of malloc(0) for a variable gnu_longname, causing an out-of-bounds read. Un atacante que envía un archivo tar diseñado con el tamaño de la estructura de cabecera siendo 0 puede ser capaz de desencadenar una llamada de malloc(0) para una variable gnu_longname, causando una lectura fuera de límites A flaw was found in libtar. This flaw allows an attacker who submits a crafted tar file with size in header struct being 0 to trigger a calling of malloc(0) for a variable gnu_longname, causing an out-of-bounds read. • 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/5YSHZY753R7XW6CIKJVAWI373WW3YRRJ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7Q26QDNOJDOFYWMJWEIK5XR62M2FF6IJ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7WX5YE66CT7Y5C2HTHXSFDKQWYWYWJ2T https://lists.fedoraproject.org/archives/list/package-announce%40li • CWE-125: Out-of-bounds Read •
CVSS: 7.5EPSS: 0%CPEs: 7EXPL: 0CVE-2021-33646 – libtar: memory leak found in th_read() function
https://notcve.org/view.php?id=CVE-2021-33646
The th_read() function doesn’t free a variable t->th_buf.gnu_longname after allocating memory, which may cause a memory leak. La función th_read() no libera una variable t-)th_buf.gnu_longname después de asignar memoria, lo que puede causar una pérdida de memoria A flaw was found in libtar. This security vulnerability occurs because the th_read() function in libtar doesn’t free a variable t->th_buf.gnu_longname after allocating memory, which may cause a memory leak. • 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/5YSHZY753R7XW6CIKJVAWI373WW3YRRJ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7Q26QDNOJDOFYWMJWEIK5XR62M2FF6IJ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7WX5YE66CT7Y5C2HTHXSFDKQWYWYWJ2T https://lists.fedoraproject.org/archives/list/package-announce%40li • CWE-401: Missing Release of Memory after Effective Lifetime •