CVSS: 7.8EPSS: 1%CPEs: 14EXPL: 0CVE-2019-9003 – kernel: use-after-free and OOPS in drivers/char/ipmi/ipmi_msghandler.c
https://notcve.org/view.php?id=CVE-2019-9003
In the Linux kernel before 4.20.5, attackers can trigger a drivers/char/ipmi/ipmi_msghandler.c use-after-free and OOPS by arranging for certain simultaneous execution of the code, as demonstrated by a "service ipmievd restart" loop. En el kernel de Linux, en versiones anteriores a la 4.20.5, los atacantes pueden desencadenar un uso de memoria previamente liberada y un estado "OOPS" en drivers/char/ipmi/ipmi_msghandler.c haciendo que cierto código se ejecute de forma simultánea, tal y como queda demostrado con un bucle "service ipmievd restart". A use-after-free and OOPs flaw was found in the Linux kernel's drivers/char/ipmi/ipmi_msghandler.c code. By arranging certain simultaneous execution of the code accessing IPMI device files, an attacker can cause a denial of service (DoS) attack. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=77f8269606bf95fcb232ee86f6da80886f1dfae8 http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00037.html http://www.securityfocus.com/bid/107145 https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.5 https://github.com/torvalds/linux/commit/77f8269606bf95fcb232ee86f6da80886f1dfae8 https://security.netapp.com/advisory/ntap-20190327-0002 https://usn.ubuntu.com/3930-1 https://usn.ubuntu.com/3930-2 https:/ • CWE-416: Use After Free •
CVSS: 5.9EPSS: 0%CPEs: 44EXPL: 0CVE-2018-0734 – Timing attack against DSA
https://notcve.org/view.php?id=CVE-2018-0734
The OpenSSL DSA signature algorithm has been shown to be vulnerable to a timing side channel attack. An attacker could use variations in the signing algorithm to recover the private key. Fixed in OpenSSL 1.1.1a (Affected 1.1.1). Fixed in OpenSSL 1.1.0j (Affected 1.1.0-1.1.0i). Fixed in OpenSSL 1.0.2q (Affected 1.0.2-1.0.2p). • http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00030.html http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00056.html http://www.securityfocus.com/bid/105758 https://access.redhat.com/errata/RHSA-2019:2304 https://access.redhat.com/errata/RHSA-2019:3700 https://access.redhat.com/errata/RHSA-2019:3932 https://access.redhat.com/errata/RHSA-2019:3933 https://access.redhat.com/errata/RHSA-2019:3935 https://git.openssl.org/gitweb/?p=openssl.git%3Ba • CWE-327: Use of a Broken or Risky Cryptographic Algorithm CWE-385: Covert Timing Channel •
CVSS: 5.9EPSS: 0%CPEs: 47EXPL: 0CVE-2018-0735 – Timing attack against ECDSA signature generation
https://notcve.org/view.php?id=CVE-2018-0735
The OpenSSL ECDSA signature algorithm has been shown to be vulnerable to a timing side channel attack. An attacker could use variations in the signing algorithm to recover the private key. Fixed in OpenSSL 1.1.0j (Affected 1.1.0-1.1.0i). Fixed in OpenSSL 1.1.1a (Affected 1.1.1). Se ha demostrado que el algoritmo de firmas ECDSA en OpenSSL es vulnerable a un ataque de sincronización de canal lateral. • http://www.securityfocus.com/bid/105750 http://www.securitytracker.com/id/1041986 https://access.redhat.com/errata/RHSA-2019:3700 https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=56fb454d281a023b3f950d969693553d3f3ceea1 https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=b1d6d55ece1c26fa2829e2b819b038d7b6d692b4 https://lists.debian.org/debian-lts-announce/2018/11/msg00024.html https://nodejs.org/en/blog/vulnerability/november-2018-security-releases https://security.netapp.com/advisor • CWE-327: Use of a Broken or Risky Cryptographic Algorithm CWE-385: Covert Timing Channel •
CVSS: 5.3EPSS: 0%CPEs: 7EXPL: 0CVE-2018-15919
https://notcve.org/view.php?id=CVE-2018-15919
Remotely observable behaviour in auth-gss2.c in OpenSSH through 7.8 could be used by remote attackers to detect existence of users on a target system when GSS2 is in use. NOTE: the discoverer states 'We understand that the OpenSSH developers do not want to treat such a username enumeration (or "oracle") as a vulnerability.' Un comportamiento observable de forma remota en auth-gss2.c en OpenSSH hasta la versión 7.8 podría ser empleado por atacantes remotos para detectar la existencia de usuarios en un sistema objetivo cuando se está empleando GSS2. NOTA: el descubridor indica que "entendemos que los desarrolladores de OpenSSH no quieran tratar tal listado de nombres de usuario (u "oráculo") como una vulnerabilidad". • http://seclists.org/oss-sec/2018/q3/180 http://www.securityfocus.com/bid/105163 https://security.netapp.com/advisory/ntap-20181221-0001 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 5.3EPSS: 2%CPEs: 32EXPL: 18CVE-2018-15473 – OpenSSH < 7.7 - User Enumeration
https://notcve.org/view.php?id=CVE-2018-15473
OpenSSH through 7.7 is prone to a user enumeration vulnerability due to not delaying bailout for an invalid authenticating user until after the packet containing the request has been fully parsed, related to auth2-gss.c, auth2-hostbased.c, and auth2-pubkey.c. OpenSSH hasta la versión 7.7 es propenso a una vulnerabilidad de enumeración de usuarios debido a que no retrasa el rescate de un usuario de autenticación no válido hasta que el paquete que contiene la petición haya sido analizado completamente. Esto está relacionado con auth2-gss.c, auth2-hostbased.c, y auth2-pubkey.c. A user enumeration vulnerability flaw was found in OpenSSH, though version 7.7. The vulnerability occurs by not delaying bailout for an invalid authenticated user until after the packet containing the request has been fully parsed. • https://www.exploit-db.com/exploits/45939 https://www.exploit-db.com/exploits/45233 https://www.exploit-db.com/exploits/45210 https://github.com/Rhynorater/CVE-2018-15473-Exploit https://github.com/r3dxpl0it/CVE-2018-15473 https://github.com/Sait-Nuri/CVE-2018-15473 https://github.com/LINYIKAI/CVE-2018-15473-exp https://github.com/MrDottt/CVE-2018-15473 https://github.com/yZ1337/CVE-2018-15473 https://github.com/1stPeak/CVE-2018-15473 https://github.com/0xrobiu • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •