CVSS: 3.8EPSS: 0%CPEs: 1EXPL: 0CVE-2021-34999 – OpenBSD Kernel Multicast Routing Uninitialized Memory Information Disclosure Vulnerability
https://notcve.org/view.php?id=CVE-2021-34999
OpenBSD Kernel Multicast Routing Uninitialized Memory Information Disclosure Vulnerability. This vulnerability allows local attackers to disclose sensitive information on affected installations of OpenBSD Kernel. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the implementation of multicast routing. The issue results from the lack of proper initialization of memory prior to accessing it. An attacker can leverage this in conjunction with other vulnerabilities to escalate privileges and execute arbitrary code in the context of the kernel. • https://www.zerodayinitiative.com/advisories/ZDI-22-073 • CWE-908: Use of Uninitialized Resource •
CVSS: 3.3EPSS: 0%CPEs: 1EXPL: 0CVE-2021-35000 – OpenBSD Kernel Multicast Routing Uninitialized Memory Information Disclosure Vulnerability
https://notcve.org/view.php?id=CVE-2021-35000
OpenBSD Kernel Multicast Routing Uninitialized Memory Information Disclosure Vulnerability. This vulnerability allows local attackers to disclose sensitive information on affected installations of OpenBSD Kernel. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the implementation of multicast routing. The issue results from the lack of proper initialization of memory prior to accessing it. An attacker can leverage this in conjunction with other vulnerabilities to escalate privileges and execute arbitrary code in the context of the kernel. • https://www.zerodayinitiative.com/advisories/ZDI-22-012 • CWE-908: Use of Uninitialized Resource •
CVSS: 7.1EPSS: 0%CPEs: 2EXPL: 1CVE-2019-25049
https://notcve.org/view.php?id=CVE-2019-25049
LibreSSL 2.9.1 through 3.2.1 has an out-of-bounds read in asn1_item_print_ctx (called from asn1_template_print_ctx). LibreSSL versiones 2.9.1 hasta 3.2.1, presenta una lectura fuera de límites en la función asn1_item_print_ctx (llamada desde asn1_template_print_ctx) • https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=13920 https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libressl/OSV-2020-1965.yaml https://github.com/libressl-portable/portable/commit/17c88164016df821df2dff4b2b1291291ec4f28a • CWE-125: Out-of-bounds Read •
CVSS: 7.1EPSS: 0%CPEs: 2EXPL: 1CVE-2019-25048
https://notcve.org/view.php?id=CVE-2019-25048
LibreSSL 2.9.1 through 3.2.1 has a heap-based buffer over-read in do_print_ex (called from asn1_item_print_ctx and ASN1_item_print). LibreSSL versiones 2.9.1 hasta 3.2.1, presenta una lectura excesiva de búfer en la región heap de la memoria en la función do_print_ex (llamado desde asn1_item_print_ctx y ASN1_item_print) • https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=13914 https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libressl/OSV-2020-1923.yaml https://github.com/libressl-portable/portable/commit/17c88164016df821df2dff4b2b1291291ec4f28a • CWE-125: Out-of-bounds Read •
CVSS: 7.4EPSS: 0%CPEs: 8EXPL: 0CVE-2019-14899
https://notcve.org/view.php?id=CVE-2019-14899
A vulnerability was discovered in Linux, FreeBSD, OpenBSD, MacOS, iOS, and Android that allows a malicious access point, or an adjacent user, to determine if a connected user is using a VPN, make positive inferences about the websites they are visiting, and determine the correct sequence and acknowledgement numbers in use, allowing the bad actor to inject data into the TCP stream. This provides everything that is needed for an attacker to hijack active connections inside the VPN tunnel. Se detectó una vulnerabilidad en Linux, FreeBSD, OpenBSD, MacOS, iOS y Android, que permite a un punto de acceso malicioso, o un usuario adyacente, determinar si un usuario conectado está utilizando una VPN, hacer inferencias positivas sobre los sitios web que está visitando, y determinar la secuencia correcta y los números de reconocimiento en uso, permitiendo al actor malo inyectar datos en la secuencia TCP. Esto proporciona todo lo necesario para que un atacante secuestre conexiones activas dentro del túnel VPN. • http://seclists.org/fulldisclosure/2020/Dec/32 http://seclists.org/fulldisclosure/2020/Jul/23 http://seclists.org/fulldisclosure/2020/Jul/24 http://seclists.org/fulldisclosure/2020/Jul/25 http://seclists.org/fulldisclosure/2020/Nov/20 http://www.openwall.com/lists/oss-security/2020/08/13/2 http://www.openwall.com/lists/oss-security/2020/10/07/3 http://www.openwall.com/lists/oss-security/2021/07/05/1 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-148 • CWE-300: Channel Accessible by Non-Endpoint •