CVSS: 9.8EPSS: 0%CPEs: 1EXPL: 1CVE-1999-0199
https://notcve.org/view.php?id=CVE-1999-0199
manual/search.texi in the GNU C Library (aka glibc) before 2.2 lacks a statement about the unspecified tdelete return value upon deletion of a tree's root, which might allow attackers to access a dangling pointer in an application whose developer was unaware of a documentation update from 1999. En el archivo manual/search.texi en la Biblioteca GNU C (también se conoce como glibc) versiones anteriores a 2.2, carece de una declaración sobre el valor de retorno tdelete no especificado al eliminar una raíz de un árbol, lo que podría permitir a atacantes acceder a un puntero colgado en una aplicación cuyo desarrollador no estaba al tanto de un actualización de documentación desde 1999 • https://ftp.gnu.org/gnu/glibc/glibc-2.2.tar.gz https://github.com/bminor/glibc/commit/2864e767053317538feafa815046fff89e5a16be#diff-94e8c502f255fdfc346df0e29fd4ef40 https://www.cee.studio/tdelete.html • CWE-252: Unchecked Return Value •
CVSS: 7.0EPSS: 0%CPEs: 11EXPL: 0CVE-2020-1752 – glibc: use-after-free in glob() function when expanding ~user
https://notcve.org/view.php?id=CVE-2020-1752
A use-after-free vulnerability introduced in glibc upstream version 2.14 was found in the way the tilde expansion was carried out. Directory paths containing an initial tilde followed by a valid username were affected by this issue. A local attacker could exploit this flaw by creating a specially crafted path that, when processed by the glob function, would potentially lead to arbitrary code execution. This was fixed in version 2.32. Una vulnerabilidad de uso de la memoria previamente liberada introducida en glibc versiones anteriores a la versión 2.14, se descubrió en la manera en que se llevó a cabo la expansión de tilde. • https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1752 https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html https://security.gentoo.org/glsa/202101-20 https://security.netapp.com/advisory/ntap-20200511-0005 https://sourceware.org/bugzilla/show_bug.cgi?id • CWE-416: Use After Free •
CVSS: 7.0EPSS: 0%CPEs: 5EXPL: 0CVE-2020-1751 – glibc: array overflow in backtrace functions for powerpc
https://notcve.org/view.php?id=CVE-2020-1751
An out-of-bounds write vulnerability was found in glibc before 2.31 when handling signal trampolines on PowerPC. Specifically, the backtrace function did not properly check the array bounds when storing the frame address, resulting in a denial of service or potential code execution. The highest threat from this vulnerability is to system availability. Se encontró una vulnerabilidad de escritura fuera de límites en glibc versiones anteriores a 2.31, cuando se manejaban trampolines de señal en PowerPC. Concretamente, la función backtrace no comprueba apropiadamente los límites de la matriz cuando almacena la dirección de la trama, resultando en una denegación de servicio o a una posible ejecución de código. • https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1751 https://security.gentoo.org/glsa/202006-04 https://security.netapp.com/advisory/ntap-20200430-0002 https://sourceware.org/bugzilla/show_bug.cgi?id=25423 https://usn.ubuntu.com/4416-1 https://access.redhat.com/security/cve/CVE-2020-1751 https://bugzilla.redhat.com/show_bug.cgi?id=1810719 • CWE-787: Out-of-bounds Write •
CVSS: 8.1EPSS: 7%CPEs: 4EXPL: 0CVE-2020-6096
https://notcve.org/view.php?id=CVE-2020-6096
An exploitable signed comparison vulnerability exists in the ARMv7 memcpy() implementation of GNU glibc 2.30.9000. Calling memcpy() (on ARMv7 targets that utilize the GNU glibc implementation) with a negative value for the 'num' parameter results in a signed comparison vulnerability. If an attacker underflows the 'num' parameter to memcpy(), this vulnerability could lead to undefined behavior such as writing to out-of-bounds memory and potentially remote code execution. Furthermore, this memcpy() implementation allows for program execution to continue in scenarios where a segmentation fault or crash should have occurred. The dangers occur in that subsequent execution and iterations of this code will be executed with this corrupted data. • https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPYXTDOOB4PQGTYAMZAZNJIB3FF6YQXI https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/URXOIA2LDUKHQXK4BE55BQBRI6ZZG3Y6 https://security.gentoo.org/glsa/202101-20 https://sourceware.org/bugzilla/show_bug.cgi?id=25620 https: • CWE-191: Integer Underflow (Wrap or Wraparound) CWE-195: Signed to Unsigned Conversion Error CWE-681: Incorrect Conversion between Numeric Types •
CVSS: 5.7EPSS: 0%CPEs: 16EXPL: 1CVE-2020-10029 – glibc: stack corruption from crafted input in cosl, sinl, sincosl, and tanl functions
https://notcve.org/view.php?id=CVE-2020-10029
The GNU C Library (aka glibc or libc6) before 2.32 could overflow an on-stack buffer during range reduction if an input to an 80-bit long double function contains a non-canonical bit pattern, a seen when passing a 0x5d414141414141410000 value to sinl on x86 targets. This is related to sysdeps/ieee754/ldbl-96/e_rem_pio2l.c. La biblioteca GNU C (también se conoce como glibc o libc6) versiones anteriores a 2.32, podría desbordar un búfer sobre la pila durante una reducción de alcance si una entrada a una función long double de 80 bits contiene un patrón de bits no canónico, como es visto cuando se pasa un valor 0x5d4141414141410000 hacia la función sinl sobre sistemas destino de x86. Esto está relacionado con el archivo sysdeps/ieee754/ldbl-96/e_rem_pio2l.c. A flaw was found in glibc in versions prior to 2.32. • http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00033.html https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/23N76M3EDP2GIW4GOIQRYTKRE7PPBRB2 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JZTFUD5VH2GU3YOXA2KBQSBIDZRDWNZ3 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VU5JJGENOK7K4X5RYAA5PL647C6HD22E https://security.gentoo.org&#x • CWE-121: Stack-based Buffer Overflow CWE-787: Out-of-bounds Write •