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CVSS: 7.8EPSS: 0%CPEs: 52EXPL: 3

glibc contains a vulnerability that allows specially crafted LD_LIBRARY_PATH values to manipulate the heap/stack, causing them to alias, potentially resulting in arbitrary code execution. Please note that additional hardening changes have been made to glibc to prevent manipulation of stack and heap memory but these issues are not directly exploitable, as such they have not been given a CVE. This affects glibc 2.25 and earlier. Glibc contiene una vulnerabilidad que permite que los valores LD_LIBRARY_PATH especialmente creados para manipular la región heap/stack de la memoria, generando entonces un alias, lo que podría conllevar a la ejecución del código arbitrario. Tenga en cuenta que se han realizado cambios de refuerzo adicionales en glibc para evitar la manipulación del stack y heap de la memoria de almacenamiento dinámico, pero estos problemas no se pueden explotar directamente, por lo que no se les ha otorgado un CVE. • https://www.exploit-db.com/exploits/42276 https://www.exploit-db.com/exploits/42274 https://www.exploit-db.com/exploits/42275 http://packetstormsecurity.com/files/154361/Cisco-Device-Hardcoded-Credentials-GNU-glibc-BusyBox.html http://seclists.org/fulldisclosure/2019/Sep/7 http://www.debian.org/security/2017/dsa-3887 http://www.securityfocus.com/bid/99127 http://www.securitytracker.com/id/1038712 https://access.redhat.com/errata/RHSA-2017:1479 https://access.redhat.com/errata/ • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •

CVSS: 9.8EPSS: 1%CPEs: 1EXPL: 0

nscd in the GNU C Library (aka glibc or libc6) before version 2.20 does not correctly compute the size of an internal buffer when processing netgroup requests, possibly leading to an nscd daemon crash or code execution as the user running nscd. nscd en la biblioteca C de GNU (también conocido como glibc o libc6), versiones anteriores a la 2.20 ,no calcula correctamente el tamaño de un buffer interno al procesar solicitudes netgroup, posibilitando la caída del demonio nscd o permitiendo la ejecución de código como usuario que ejecuta nscd. Many Cisco devices such as Cisco RV340, Cisco RV340W, Cisco RV345, Cisco RV345P, Cisco RV260, Cisco RV260P, Cisco RV260W, Cisco 160, and Cisco 160W suffer from having hard-coded credentials, known GNU glibc, known BusyBox, and IoT Inspector identified vulnerabilities. • http://packetstormsecurity.com/files/153278/WAGO-852-Industrial-Managed-Switch-Series-Code-Execution-Hardcoded-Credentials.html http://packetstormsecurity.com/files/154361/Cisco-Device-Hardcoded-Credentials-GNU-glibc-BusyBox.html http://seclists.org/fulldisclosure/2019/Jun/18 http://seclists.org/fulldisclosure/2019/Sep/7 http://www.securityfocus.com/bid/99071 https://seclists.org/bugtraq/2019/Jun/14 https://seclists.org/bugtraq/2019/Sep/7 https://sourceware.org/bugzilla/show_bug.cgi?id=16695 https: • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •

CVSS: 9.8EPSS: 0%CPEs: 1EXPL: 0

The glob function in glob.c in the GNU C Library (aka glibc or libc6) before 2.27 contains a buffer overflow during unescaping of user names with the ~ operator. La función glob en glob.c en la biblioteca GNU C (también llamada glibc o libc6) en versiones anteriores a la 2.27 contiene un desbordamiento de búfer durante la eliminación del escape de nombres de usuario con el operador ~. • http://www.securityfocus.com/bid/101535 https://access.redhat.com/errata/RHSA-2018:0805 https://access.redhat.com/errata/RHSA-2018:1879 https://sourceware.org/bugzilla/show_bug.cgi?id=22332 https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Ba=commit%3Bh=a159b53fa059947cc2548e3b0d5bdcf7b9630ba8 https://access.redhat.com/security/cve/CVE-2017-15804 https://bugzilla.redhat.com/show_bug.cgi?id=1505298 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-122: Heap-based Buffer Overflow •

CVSS: 9.8EPSS: 0%CPEs: 20EXPL: 0

An integer overflow in the implementation of the posix_memalign in memalign functions in the GNU C Library (aka glibc or libc6) 2.26 and earlier could cause these functions to return a pointer to a heap area that is too small, potentially leading to heap corruption. Un desbordamiento de enteros en la implementación de posix_memalign en las funciones memalign en GNU C Library (también conocido como glibc o libc6) en versiones 2.26 y anteriores podría provocar que estas funciones devuelvan un puntero a un área de la memoria dinámica (heap) demasiado pequeña, pudiendo corromper el heap. • http://bugs.debian.org/878159 http://www.securityfocus.com/bid/102912 https://access.redhat.com/errata/RHBA-2019:0327 https://access.redhat.com/errata/RHSA-2018:3092 https://security.netapp.com/advisory/ntap-20190404-0003 https://sourceware.org/bugzilla/show_bug.cgi?id=22343 https://usn.ubuntu.com/4218-1 https://usn.ubuntu.com/4416-1 https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html https://access.redhat.com/security/cve/CVE-2018-6485 https:/ • CWE-190: Integer Overflow or Wraparound CWE-787: Out-of-bounds Write •

CVSS: 9.8EPSS: 0%CPEs: 1EXPL: 0

The GNU C Library (aka glibc or libc6) before 2.27 contains an off-by-one error leading to a heap-based buffer overflow in the glob function in glob.c, related to the processing of home directories using the ~ operator followed by a long string. La biblioteca GNU C (también llamada glibc o libc6) en versiones anteriores a la 2.27 contiene un error por un paso que conduce a un desbordamiento de búfer basado en memoria dinámica (heap) en la función glob en glob.c. Esto se relaciona con el procesamiento de directorios principales empleando el operador ~ seguido por una larga cadena. • http://www.securityfocus.com/bid/101521 https://access.redhat.com/errata/RHSA-2018:0805 https://access.redhat.com/errata/RHSA-2018:1879 https://sourceware.org/bugzilla/show_bug.cgi?id=22320 https://access.redhat.com/security/cve/CVE-2017-15670 https://bugzilla.redhat.com/show_bug.cgi?id=1504804 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-122: Heap-based Buffer Overflow •