CVSS: 7.5EPSS: 8%CPEs: 38EXPL: 1CVE-2020-1967 – Segmentation fault in SSL_check_chain
https://notcve.org/view.php?id=CVE-2020-1967
Server or client applications that call the SSL_check_chain() function during or after a TLS 1.3 handshake may crash due to a NULL pointer dereference as a result of incorrect handling of the "signature_algorithms_cert" TLS extension. The crash occurs if an invalid or unrecognised signature algorithm is received from the peer. This could be exploited by a malicious peer in a Denial of Service attack. OpenSSL version 1.1.1d, 1.1.1e, and 1.1.1f are affected by this issue. This issue did not affect OpenSSL versions prior to 1.1.1d. • https://github.com/irsl/CVE-2020-1967 http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00004.html http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00011.html http://packetstormsecurity.com/files/157527/OpenSSL-signature_algorithms_cert-Denial-Of-Service.html http://seclists.org/fulldisclosure/2020/May/5 http://www.openwall.com/lists/oss-security/2020/04/22/2 https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=eb563247aef3e83dda7679c43f9649270462e5b1 https:/&# • CWE-476: NULL Pointer Dereference •
CVSS: 5.3EPSS: 0%CPEs: 9EXPL: 0CVE-2020-1730 – libssh: denial of service when handling AES-CTR (or DES) ciphers
https://notcve.org/view.php?id=CVE-2020-1730
A flaw was found in libssh versions before 0.8.9 and before 0.9.4 in the way it handled AES-CTR (or DES ciphers if enabled) ciphers. The server or client could crash when the connection hasn't been fully initialized and the system tries to cleanup the ciphers when closing the connection. The biggest threat from this vulnerability is system availability. Se detectó un fallo en libssh versiones anteriores a 0.8.9 y versiones anteriores a 0.9.4, en la manera en que se manejaron los cifrados AES-CTR (o DES si está habilitado). El servidor o el cliente podrían bloquearse cuando la conexión no ha sido inicializada completamente y el sistema intenta limpiar los cifrados cuando se cierra la conexión. • https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1730 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2A7BIFKUYIYKTY7FX4BEWVC2OHS5DPOU https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VLSWHBQ3EPKGTGLQNH554Z746BJ3C554 https://security.netapp.com/advisory/ntap-20200424-0001 https://usn.ubuntu.com/4327-1 https://www.libssh.org/security/advisories/CVE-2020-1730.txt https://www.oracle.com/security-alerts/cpuoct2020.html https:/ • CWE-476: NULL Pointer Dereference •
CVSS: 7.5EPSS: 1%CPEs: 27EXPL: 1CVE-2020-11655
https://notcve.org/view.php?id=CVE-2020-11655
SQLite through 3.31.1 allows attackers to cause a denial of service (segmentation fault) via a malformed window-function query because the AggInfo object's initialization is mishandled. SQLite versiones hasta 3.31.1, permite a atacantes causar una denegación de servicio (fallo de segmentación) por medio de una consulta de una función de window malformada porque la inicialización el objeto AggInfo es manejada inapropiadamente. • https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf https://lists.debian.org/debian-lts-announce/2020/05/msg00006.html https://lists.debian.org/debian-lts-announce/2020/08/msg00037.html https://security.FreeBSD.org/advisories/FreeBSD-SA-20:22.sqlite.asc https://security.gentoo.org/glsa/202007-26 https://security.netapp.com/advisory/ntap-20200416-0001 https://usn.ubuntu.com/4394-1 https://www.oracle.com/security-alerts/cpuApr2021.html https://www.oracle.com/security- • CWE-665: Improper Initialization •
CVSS: 9.8EPSS: 1%CPEs: 15EXPL: 0CVE-2020-11656
https://notcve.org/view.php?id=CVE-2020-11656
In SQLite through 3.31.1, the ALTER TABLE implementation has a use-after-free, as demonstrated by an ORDER BY clause that belongs to a compound SELECT statement. En SQLite versiones hasta 3.31.1, la implementación de ALTER TABLE presenta un uso de la memoria previamente liberada, como es demostrado por una cláusula ORDER BY que pertenece a una sentencia SELECT compuesta. • https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf https://security.FreeBSD.org/advisories/FreeBSD-SA-20:22.sqlite.asc https://security.gentoo.org/glsa/202007-26 https://security.netapp.com/advisory/ntap-20200416-0001 https://www.oracle.com/security-alerts/cpuApr2021.html https://www.oracle.com/security-alerts/cpujan2021.html https://www.oracle.com/security-alerts/cpujul2020.html https://www.oracle.com/security-alerts/cpuoct2020.html https://www.sqlite.org/src/info/d09f8c3621d5 • CWE-416: Use After Free •
CVSS: 7.5EPSS: 1%CPEs: 16EXPL: 0CVE-2020-9327 – sqlite: NULL pointer dereference and segmentation fault because of generated column optimizations
https://notcve.org/view.php?id=CVE-2020-9327
In SQLite 3.31.1, isAuxiliaryVtabOperator allows attackers to trigger a NULL pointer dereference and segmentation fault because of generated column optimizations. En SQLite versión 3.31.1, la función isAuxiliaryVtabOperator permite a atacantes desencadenar una desreferencia del puntero NULL y un fallo de segmentación debido a las optimizaciones de columna generadas. A NULL pointer dereference was found in SQLite in the way it executes select statements with column optimizations. An attacker who is able to execute SQL statements can use this flaw to crash the application. • https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf https://security.gentoo.org/glsa/202003-16 https://security.netapp.com/advisory/ntap-20200313-0002 https://usn.ubuntu.com/4298-1 https://www.oracle.com/security-alerts/cpuApr2021.html https://www.oracle.com/security-alerts/cpujan2021.html https://www.oracle.com/security-alerts/cpujul2020.html https://www.oracle.com/security-alerts/cpuoct2020.html https://www.sqlite.org/cgi/src/info/4374860b29383380 https://www.sqlite. • CWE-476: NULL Pointer Dereference •