CVE-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 •
CVE-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 •
CVE-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 •
CVE-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 •
CVE-2022-37451
https://notcve.org/view.php?id=CVE-2022-37451
Exim before 4.96 has an invalid free in pam_converse in auths/call_pam.c because store_free is not used after store_malloc. Exim versiones anteriores a 4.96, presenta una liberación no válida en el archivo pam_converse en auths/call_pam.c porque store_free no es usada después de store_malloc • https://cwe.mitre.org/data/definitions/762.html https://github.com/Exim/exim/commit/51be321b27825c01829dffd90f11bfff256f7e42 https://github.com/Exim/exim/compare/exim-4.95...exim-4.96 https://github.com/Exim/exim/wiki/EximSecurity https://github.com/ivd38/exim_invalid_free https://lists.exim.org/lurker/message/20220625.141825.d6de6074.en.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LETR5CVDPFOFQHXCJP6NFLG52JZHQYDY https://lists.fedoraproject.org/arc • CWE-763: Release of Invalid Pointer or Reference •