CVSS: 7.8EPSS: 0%CPEs: 17EXPL: 1CVE-2021-3999 – glibc: Off-by-one buffer overflow/underflow in getcwd()
https://notcve.org/view.php?id=CVE-2021-3999
A flaw was found in glibc. An off-by-one buffer overflow and underflow in getcwd() may lead to memory corruption when the size of the buffer is exactly 1. A local attacker who can control the input buffer and size passed to getcwd() in a setuid program could use this flaw to potentially execute arbitrary code and escalate their privileges on the system. Se ha encontrado un fallo en glibc. Un desbordamiento y subdesbordamiento de búfer en la función getcwd() puede conllevar a una corrupción de memoria cuando el tamaño del búfer es exactamente 1. • https://access.redhat.com/security/cve/CVE-2021-3999 https://bugzilla.redhat.com/show_bug.cgi?id=2024637 https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html https://security-tracker.debian.org/tracker/CVE-2021-3999 https://security.netapp.com/advisory/ntap-20221104-0001 https://sourceware.org/bugzilla/show_bug.cgi?id=28769 https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=23e0e8f5f1fb5ed150253d986ecccdc90c2dcd5e https://www.openwall.com/lists/oss-security/2022/01/24/4 • CWE-193: Off-by-one Error •
CVSS: 9.8EPSS: 1%CPEs: 6EXPL: 1CVE-2022-23218 – glibc: Stack-based buffer overflow in svcunix_create via long pathnames
https://notcve.org/view.php?id=CVE-2022-23218
The deprecated compatibility function svcunix_create in the sunrpc module of the GNU C Library (aka glibc) through 2.34 copies its path argument on the stack without validating its length, which may result in a buffer overflow, potentially resulting in a denial of service or (if an application is not built with a stack protector enabled) arbitrary code execution. La función de compatibilidad obsoleta svcunix_create en el módulo sunrpc de la Biblioteca C de GNU (también conocida como glibc) hasta la versión 2.34 copia su argumento de ruta en la pila sin comprobar su longitud, lo que puede resultar en un desbordamiento del búfer, resultando potencialmente en una denegación de servicio o (si una aplicación no está construida con un protector de pila habilitado) la ejecución de código arbitrario A stack based buffer-overflow vulnerability was found in the deprecated compatibility function svcunix_create() in the sunrpc's svc_unix.c module of the GNU C Library (aka glibc) through 2.34. This vulnerability copies its path argument onto the stack without validating its length, which may result in a buffer overflow, potentially resulting in a denial of service or (if an application is not built with a stack protector enabled) then it will lead to arbitrary code execution. • https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html https://security.gentoo.org/glsa/202208-24 https://sourceware.org/bugzilla/show_bug.cgi?id=28768 https://www.oracle.com/security-alerts/cpujul2022.html https://access.redhat.com/security/cve/CVE-2022-23218 https://bugzilla.redhat.com/show_bug.cgi?id=2042013 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •
CVSS: 9.8EPSS: 1%CPEs: 11EXPL: 1CVE-2022-23219 – glibc: Stack-based buffer overflow in sunrpc clnt_create via a long pathname
https://notcve.org/view.php?id=CVE-2022-23219
The deprecated compatibility function clnt_create in the sunrpc module of the GNU C Library (aka glibc) through 2.34 copies its hostname argument on the stack without validating its length, which may result in a buffer overflow, potentially resulting in a denial of service or (if an application is not built with a stack protector enabled) arbitrary code execution. La función de compatibilidad obsoleta clnt_create en el módulo sunrpc de la Biblioteca C de GNU (también se conoce como glibc) versiones hasta 2.34, copia su argumento de nombre de host en la pila sin comprobar su longitud, que puede resultar en un desbordamiento de búfer, resultando potencialmente en una denegación de servicio o (si una aplicación no está construida con un protector de pila habilitado) la ejecución de código arbitrario A stack based buffer-overflow vulnerability was found in the deprecated compatibility function clnt_create() in the sunrpc's clnt_gen.c module of the GNU C Library (aka glibc) through 2.34. This vulnerability copies its hostname argument onto the stack without validating its length, which may result in a buffer overflow, potentially resulting in a denial of service or (if an application is not built with a stack protector enabled) lead to arbitrary code execution. • https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html https://security.gentoo.org/glsa/202208-24 https://sourceware.org/bugzilla/show_bug.cgi?id=22542 https://www.oracle.com/security-alerts/cpujul2022.html https://access.redhat.com/security/cve/CVE-2022-23219 https://bugzilla.redhat.com/show_bug.cgi?id=2042017 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •
CVSS: 7.5EPSS: 1%CPEs: 11EXPL: 1CVE-2021-38604
https://notcve.org/view.php?id=CVE-2021-38604
In librt in the GNU C Library (aka glibc) through 2.34, sysdeps/unix/sysv/linux/mq_notify.c mishandles certain NOTIFY_REMOVED data, leading to a NULL pointer dereference. NOTE: this vulnerability was introduced as a side effect of the CVE-2021-33574 fix. En librt en la Biblioteca C de GNU (también se conoce como glibc) versiones hasta 2.34, el archivo sysdeps/unix/sysv/linux/mq_notify.c, maneja inapropiadamente determinados datos NOTIFY_REMOVED, conllevando una desreferencia de puntero NULL. NOTA: esta vulnerabilidad se introdujo como efecto secundario de la corrección de CVE-2021-33574 • https://blog.tuxcare.com/cve/tuxcare-team-identifies-cve-2021-38604-a-new-vulnerability-in-glibc https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GYEXYM37RCJWJ6B5KQUYQI4NZBDDYSXP https://security.gentoo.org/glsa/202208-24 https://security.netapp.com/advisory/ntap-20210909-0005 https://sourceware.org/bugzilla/show_bug.cgi?id=28213 https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=4cc79c217744743077bf7a0ec5e0a4318f1e6641 https://sourceware.org/git/?p=glibc.git%3Ba&# • CWE-476: NULL Pointer Dereference •
CVSS: 9.1EPSS: 1%CPEs: 7EXPL: 0CVE-2021-35942 – glibc: Arbitrary read in wordexp()
https://notcve.org/view.php?id=CVE-2021-35942
The wordexp function in the GNU C Library (aka glibc) through 2.33 may crash or read arbitrary memory in parse_param (in posix/wordexp.c) when called with an untrusted, crafted pattern, potentially resulting in a denial of service or disclosure of information. This occurs because atoi was used but strtoul should have been used to ensure correct calculations. La función wordexp de la biblioteca GNU C (también se conoce como glibc) versiones hasta 2.33, puede bloquearse o leer memoria arbitraria en la función parse_param (en el archivo posix/wordexp.c) cuando se llama con un patrón diseñado que no es confiable, resultando en una denegación de servicio o divulgación de información. Esto ocurre porque atoi fue usado pero debería haber sido usado strtoul para asegurar cálculos correctos An integer overflow flaw was found in glibc that may result in reading of arbitrary memory when wordexp is used with a specially crafted untrusted regular expression input. • https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html https://security.gentoo.org/glsa/202208-24 https://security.netapp.com/advisory/ntap-20210827-0005 https://sourceware.org/bugzilla/show_bug.cgi?id=28011 https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=5adda61f62b77384718b4c0d8336ade8f2b4b35c https://sourceware.org/glibc/wiki/Security%20Exceptions https://access.redhat.com/security/cve/CVE-2021-35942 https://bugzilla.redhat.com/show_bug.cgi?id=1977975 • CWE-190: Integer Overflow or Wraparound •