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CVSS: 5.3EPSS: 0%CPEs: 8EXPL: 2

A flaw was found affecting the Linux kernel before version 4.17. By mmap()ing a FUSE-backed file onto a process's memory containing command line arguments (or environment strings), an attacker can cause utilities from psutils or procps (such as ps, w) or any other program which makes a read() call to the /proc/<pid>/cmdline (or /proc/<pid>/environ) files to block indefinitely (denial of service) or for some controlled time (as a synchronization primitive for other attacks). Se ha encontrado un error que afecta al kernel de Linux en versiones anteriores a la 4.17. Al realizar un mmap() sobre un archivo copiado con FUSE en la memoria de un proceso que contiene argumentos de línea de comandos (o cadenas de entorno), un atacante puede hacer que las utilidades de psutils o procps (como ps o w) o cualquier otro programa que realiza una llamada read() a los archivos /proc//cmdline (o /proc//environ) se bloqueen indefinidamente (denegación de servicio) o durante un tiempo determinado (como primitiva de sincronización para otros ataques). By mmap()ing a FUSE-backed file onto a process's memory containing command line arguments (or environment strings), an attacker can cause utilities from psutils or procps (such as ps, w) or any other program which makes a read() call to the /proc/<pid>/cmdline (or /proc/<pid>/environ) files to block indefinitely (denial of service) or for some controlled time (as a synchronization primitive for other attacks). • https://www.exploit-db.com/exploits/44806 http://seclists.org/oss-sec/2018/q2/122 http://www.securityfocus.com/bid/104229 https://access.redhat.com/errata/RHSA-2018:2948 https://access.redhat.com/errata/RHSA-2018:3083 https://access.redhat.com/errata/RHSA-2018:3096 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1120 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7f7ccc2ccc2e70c6054685f5e3522efa81556830 https://lists.debian.org/debian-lt • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-122: Heap-based Buffer Overflow •

CVSS: 7.8EPSS: 0%CPEs: 15EXPL: 1

An AVX-512-optimized implementation of the mempcpy function in the GNU C Library (aka glibc or libc6) 2.27 and earlier may write data beyond the target buffer, leading to a buffer overflow in __mempcpy_avx512_no_vzeroupper. Una implementación optimizada para AVX-512 de la función mempcpy en GNU C Library (también conocido como glibc o libc6), en versiones 2.27 y anteriores, podría escribir datos más allá del búfer objetivo, lo que desemboca en un desbordamiento de búfer en __mempcpy_avx512_no_vzeroupper. A buffer overflow has been discovered in the GNU C Library (aka glibc or libc6) in the __mempcpy_avx512_no_vzeroupper function when particular conditions are met. An attacker could use this vulnerability to cause a denial of service or potentially execute code. GNU glibc versions prior to 2.27 suffer from a buffer overflow vulnerability. • http://www.securityfocus.com/bid/104256 https://access.redhat.com/errata/RHBA-2019:0327 https://access.redhat.com/errata/RHSA-2018:3092 https://security.netapp.com/advisory/ntap-20190329-0001 https://security.netapp.com/advisory/ntap-20190401-0001 https://sourceware.org/bugzilla/show_bug.cgi?id=23196 https://usn.ubuntu.com/4416-1 https://www.exploit-db.com/exploits/44750 https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html https://access.redhat.com/security • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-787: Out-of-bounds Write •

CVSS: 9.8EPSS: 1%CPEs: 12EXPL: 0

stdlib/canonicalize.c in the GNU C Library (aka glibc or libc6) 2.27 and earlier, when processing very long pathname arguments to the realpath function, could encounter an integer overflow on 32-bit architectures, leading to a stack-based buffer overflow and, potentially, arbitrary code execution. stdlib/canonicalize.c en GNU C Library (también conocida como glibc o libc6), en versiones 2.27 y anteriores, al procesar argumentos con un nombre de ruta muy largo en la función realpath, podría encontrarse con un desbordamiento de enteros en arquitecturas de 32 bits. Esto podría desembocar en un desbordamiento de búfer basado en pila y en una potencial ejecución de código arbitrario. • http://www.securityfocus.com/bid/104255 https://access.redhat.com/errata/RHBA-2019:0327 https://access.redhat.com/errata/RHSA-2018:3092 https://security.netapp.com/advisory/ntap-20190329-0001 https://security.netapp.com/advisory/ntap-20190401-0001 https://sourceware.org/bugzilla/show_bug.cgi?id=22786 https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=5460617d1567657621107d895ee2dd83bc1f88f2 https://usn.ubuntu.com/4416-1 https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.h • CWE-121: Stack-based Buffer Overflow CWE-190: Integer Overflow or Wraparound CWE-787: Out-of-bounds Write •

CVSS: 5.3EPSS: 0%CPEs: 4EXPL: 0

The web console login form in ovirt-engine before version 4.2.3 returned different errors for non-existent users and invalid passwords, allowing an attacker to discover the names of valid user accounts. El formulario de inicio de sesión en la consola web de ovirt-engine, en versiones anteriores a la 4.2.3, devolvió errores diferentes para usuarios inexistentes y contraseñas no válidas, lo que permitió que un atacante descubriese los nombres de cuentas de usuario válidas. The ovirt-engine web console login form returned different errors for non-existent users and invalid passwords, allowing an attacker to discover the names of valid user accounts. • http://www.securityfocus.com/bid/104189 https://access.redhat.com/errata/RHSA-2018:1525 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1073 https://access.redhat.com/security/cve/CVE-2018-1073 https://bugzilla.redhat.com/show_bug.cgi?id=1553525 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-209: Generation of Error Message Containing Sensitive Information •

CVSS: 7.9EPSS: 97%CPEs: 22EXPL: 4

DHCP packages in Red Hat Enterprise Linux 6 and 7, Fedora 28, and earlier are vulnerable to a command injection flaw in the NetworkManager integration script included in the DHCP client. A malicious DHCP server, or an attacker on the local network able to spoof DHCP responses, could use this flaw to execute arbitrary commands with root privileges on systems using NetworkManager and configured to obtain network configuration using the DHCP protocol. Los paquetes DHCP en Red Hat Enterprise Linux 6 y 7, Fedora 28 y anteriores son vulnerables a un error de inyección de comandos en el script de integración NetworkManager incluido en el cliente DHCP. Un servidor DHCP malicioso o un atacante en la red ocal capaz de suplantar respuestas DHCP podría emplear este error para ejecutar comandos arbitrarios con privilegios root en sistemas que emplean NetworkManager y se configuran para obtener la configuración de red mediante el protocolo de configuración dinámica de host (DHCP). A command injection flaw was found in the NetworkManager integration script included in the DHCP client packages in Red Hat Enterprise Linux. • https://www.exploit-db.com/exploits/44652 https://www.exploit-db.com/exploits/44890 https://github.com/kkirsche/CVE-2018-1111 https://github.com/knqyf263/CVE-2018-1111 http://www.securityfocus.com/bid/104195 http://www.securitytracker.com/id/1040912 https://access.redhat.com/errata/RHSA-2018:1453 https://access.redhat.com/errata/RHSA-2018:1454 https://access.redhat.com/errata/RHSA-2018:1455 https://access.redhat.com/errata/RHSA-2018:1456 https://access.redhat.com&#x • CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection') CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') •