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CVE-2023-5156 – Glibc: dos due to memory leak in getaddrinfo.c
https://notcve.org/view.php?id=CVE-2023-5156
25 Sep 2023 — A flaw was found in the GNU C Library. A recent fix for CVE-2023-4806 introduced the potential for a memory leak, which may result in an application crash. Se encontró una falla en la librería GNU C. Una solución reciente para CVE-2023-4806 introdujo la posibilidad de una pérdida de memoria, lo que puede provocar un bloqueo de la aplicación. It was discovered that the GNU C Library was not properly handling certain memory operations. • http://www.openwall.com/lists/oss-security/2023/10/03/4 • CWE-401: Missing Release of Memory after Effective Lifetime •
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CVE-2023-4806 – Glibc: potential use-after-free in getaddrinfo()
https://notcve.org/view.php?id=CVE-2023-4806
18 Sep 2023 — A flaw was found in glibc. In an extremely rare situation, the getaddrinfo function may access memory that has been freed, resulting in an application crash. This issue is only exploitable when a NSS module implements only the _nss_*_gethostbyname2_r and _nss_*_getcanonname_r hooks without implementing the _nss_*_gethostbyname3_r hook. The resolved name should return a large number of IPv6 and IPv4, and the call to the getaddrinfo function should have the AF_INET6 address family with AI_CANONNAME, AI_ALL an... • http://www.openwall.com/lists/oss-security/2023/10/03/4 • CWE-416: Use After Free •
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CVE-2023-4527 – Glibc: stack read overflow in getaddrinfo in no-aaaa mode
https://notcve.org/view.php?id=CVE-2023-4527
18 Sep 2023 — A flaw was found in glibc. When the getaddrinfo function is called with the AF_UNSPEC address family and the system is configured with no-aaaa mode via /etc/resolv.conf, a DNS response via TCP larger than 2048 bytes can potentially disclose stack contents through the function returned address data, and may cause a crash. Se encontró una falla en glibc. Cuando se llama a la función getaddrinfo con la familia de direcciones AF_UNSPEC y el sistema está configurado con el modo no-aaaa a través de /etc/resolv.co... • http://www.openwall.com/lists/oss-security/2023/09/25/1 • CWE-121: Stack-based Buffer Overflow CWE-125: Out-of-bounds Read •
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CVE-2023-4813 – Glibc: potential use-after-free in gaih_inet()
https://notcve.org/view.php?id=CVE-2023-4813
12 Sep 2023 — A flaw was found in glibc. In an uncommon situation, the gaih_inet function may use memory that has been freed, resulting in an application crash. This issue is only exploitable when the getaddrinfo function is called and the hosts database in /etc/nsswitch.conf is configured with SUCCESS=continue or SUCCESS=merge. Se encontró una falla en glibc. En una situación poco común, la función gaih_inet puede utilizar memoria que se ha liberado, lo que provoca un bloqueo de la aplicación. • https://github.com/tnishiox/cve-2023-4813 • CWE-416: Use After Free •
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CVE-2015-20109 – Ubuntu Security Notice USN-6762-1
https://notcve.org/view.php?id=CVE-2015-20109
25 Jun 2023 — end_pattern (called from internal_fnmatch) in the GNU C Library (aka glibc or libc6) before 2.22 might allow context-dependent attackers to cause a denial of service (application crash), as demonstrated by use of the fnmatch library function with the **(!() pattern. NOTE: this is not the same as CVE-2015-8984; also, some Linux distributions have fixed CVE-2015-8984 but have not fixed this additional fnmatch issue. It was discovered that GNU C Library incorrectly handled netgroup requests. An attacker could ... • https://security.netapp.com/advisory/ntap-20230731-0009 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •
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CVE-2023-0687
https://notcve.org/view.php?id=CVE-2023-0687
06 Feb 2023 — A vulnerability was found in GNU C Library 2.38. It has been declared as critical. This vulnerability affects the function __monstartup of the file gmon.c of the component Call Graph Monitor. The manipulation leads to buffer overflow. It is recommended to apply a patch to fix this issue. • https://patchwork.sourceware.org/project/glibc/patch/20230204114138.5436-1-leo%40yuriev.ru • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •
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CVE-2023-25139
https://notcve.org/view.php?id=CVE-2023-25139
03 Feb 2023 — sprintf in the GNU C Library (glibc) 2.37 has a buffer overflow (out-of-bounds write) in some situations with a correct buffer size. This is unrelated to CWE-676. It may write beyond the bounds of the destination buffer when attempting to write a padded, thousands-separated string representation of a number, if the buffer is allocated the exact size required to represent that number as a string. For example, 1,234,567 (with padding to 13) overflows by two bytes. • http://www.openwall.com/lists/oss-security/2023/02/10/1 • CWE-787: Out-of-bounds Write •
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CVE-2022-39046 – glibc syslog() Heap-Based Buffer Overflow
https://notcve.org/view.php?id=CVE-2022-39046
31 Aug 2022 — An issue was discovered in the GNU C Library (glibc) 2.36. When the syslog function is passed a crafted input string larger than 1024 bytes, it reads uninitialized memory from the heap and prints it to the target log file, potentially revealing a portion of the contents of the heap. Se ha detectado un problema en la biblioteca GNU C (glibc) versión 2.36. Cuando a la función syslog le es pasada una cadena de entrada diseñada de más de 1024 bytes, lee memoria no inicializada de la pila y la imprime en el arch... • https://packetstorm.news/files/id/176932 • CWE-532: Insertion of Sensitive Information into Log File •
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CVE-2021-3998 – Ubuntu Security Notice USN-5310-1
https://notcve.org/view.php?id=CVE-2021-3998
02 Mar 2022 — A flaw was found in glibc. The realpath() function can mistakenly return an unexpected value, potentially leading to information leakage and disclosure of sensitive data. Se ha encontrado un fallo en glibc. La función realpath() puede devolver por error un valor no esperado, conllevando potencialmente a un filtrado de información y una divulgación de datos confidenciales. Jan Engelhardt, Tavis Ormandy, and others discovered that the GNU C Library iconv feature incorrectly handled certain input sequences. • https://access.redhat.com/security/cve/CVE-2021-3998 • CWE-125: Out-of-bounds Read CWE-252: Unchecked Return Value •
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CVE-2021-3999 – glibc: Off-by-one buffer overflow/underflow in getcwd()
https://notcve.org/view.php?id=CVE-2021-3999
02 Mar 2022 — 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... • https://access.redhat.com/security/cve/CVE-2021-3999 • CWE-193: Off-by-one Error •