CVSS: 7.8EPSS: 0%CPEs: 43EXPL: 22CVE-2019-13272 – Linux Kernel Improper Privilege Management Vulnerability
https://notcve.org/view.php?id=CVE-2019-13272
In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to create a ptrace relationship, which allows local users to obtain root access by leveraging certain scenarios with a parent-child process relationship, where a parent drops privileges and calls execve (potentially allowing control by an attacker). One contributing factor is an object lifetime issue (which can also cause a panic). Another contributing factor is incorrect marking of a ptrace relationship as privileged, which is exploitable through (for example) Polkit's pkexec helper with PTRACE_TRACEME. NOTE: SELinux deny_ptrace might be a usable workaround in some environments. En el kernel de Linux anterior a versión 5.1.17, ptrace_link en el archivo kernel/ptrace.c maneja inapropiadamente la grabación de las credenciales de un proceso que desea crear una relación de ptrace, que permite a los usuarios locales obtener acceso de root aprovechando determinados escenarios con un relación de proceso padre-hijo, donde un padre elimina los privilegios y llama a execve (permitiendo potencialmente el control por parte de un atacante). • https://www.exploit-db.com/exploits/47133 https://www.exploit-db.com/exploits/47163 https://www.exploit-db.com/exploits/50541 https://www.exploit-db.com/exploits/47543 https://github.com/jas502n/CVE-2019-13272 https://github.com/Cyc1eC/CVE-2019-13272 https://github.com/oneoy/CVE-2019-13272 https://github.com/polosec/CVE-2019-13272 https://github.com/MDS1GNAL/ptrace_scope-CVE-2019-13272-privilege-escalation https://github.com/datntsec/CVE-2019-13272 https://github • CWE-271: Privilege Dropping / Lowering Errors •
CVSS: 8.1EPSS: 0%CPEs: 9EXPL: 1CVE-2019-13115 – libssh2 1.8.2 Out-Of-Bounds Read
https://notcve.org/view.php?id=CVE-2019-13115
In libssh2 before 1.9.0, kex_method_diffie_hellman_group_exchange_sha256_key_exchange in kex.c has an integer overflow that could lead to an out-of-bounds read in the way packets are read from the server. A remote attacker who compromises a SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server. This is related to an _libssh2_check_length mistake, and is different from the various issues fixed in 1.8.1, such as CVE-2019-3855. En libssh2 anterior a la versión 1.9.0, el archivo kex_method_diffie_hellman_group_exchange_sha256_key_exchange en kex.c presenta un desbordamiento de enteros que podría conllevar a una escritura fuera de límites en la manera en que se leen los paquetes desde el servidor. Un atacante remoto que comprometa un servidor SSH puede ejecutar código en el sistema cliente cuando un usuario se conecta al servidor. • http://packetstormsecurity.com/files/172834/libssh2-1.8.2-Out-Of-Bounds-Read.html https://blog.semmle.com/libssh2-integer-overflow https://github.com/libssh2/libssh2/compare/02ecf17...42d37aa https://github.com/libssh2/libssh2/pull/350 https://libssh2.org/changes.html https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E http • CWE-125: Out-of-bounds Read CWE-190: Integer Overflow or Wraparound •
CVSS: 5.3EPSS: 0%CPEs: 37EXPL: 0CVE-2019-13118
https://notcve.org/view.php?id=CVE-2019-13118
In numbers.c in libxslt 1.1.33, a type holding grouping characters of an xsl:number instruction was too narrow and an invalid character/length combination could be passed to xsltNumberFormatDecimal, leading to a read of uninitialized stack data. En el archivo numbers.c en libxslt versión 1.1.33, un tipo que contiene caracteres de agrupación de una instrucción xsl:number era demasiado estrecho y una combinación de carácter/longitud no válida se podía ser pasada a la función xsltNumberFormatDecimal, conllevando a una lectura de los datos de pila no inicializados. • http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00062.html http://seclists.org/fulldisclosure/2019/Aug/11 http://seclists.org/fulldisclosure/2019/Aug/13 http://seclists.org/fulldisclosure/2019/Aug/14 http://seclists.org/fulldisclosure/2019/Aug/15 http://seclists.org/fulldisclosure/2019/Jul/22 http://seclists.org/fulldisclosure/2019/Jul/23 http://seclists.org/fulldisclosure/2019/Jul/24 http://seclists.org/fulldisclosure/2019/Jul/26 http://seclists.org/fulldisclosur • CWE-843: Access of Resource Using Incompatible Type ('Type Confusion') •
CVSS: 9.8EPSS: 0%CPEs: 31EXPL: 0CVE-2019-11068 – libxslt: xsltCheckRead and xsltCheckWrite routines security bypass by crafted URL
https://notcve.org/view.php?id=CVE-2019-11068
libxslt through 1.1.33 allows bypass of a protection mechanism because callers of xsltCheckRead and xsltCheckWrite permit access even upon receiving a -1 error code. xsltCheckRead can return -1 for a crafted URL that is not actually invalid and is subsequently loaded. libxslt hasta la versión 1.1.33 permite omitir los mecanismos de protección debido a que los callers xsltCheckRead y xsltCheckWrite permiten acceso incluso después de recibir el código de error -1. xsltCheckRead puede devolver -1 para una URL creada que no es realmente inválida y que se carga posteriormente. • http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00048.html http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00052.html http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00053.html http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00025.html http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00001.html http://www.openwall.com/lists/oss-security/2019/04/22/1 http://www.openwall.com/lists/oss-security/2019/04/23/5 https • CWE-284: Improper Access Control •
CVSS: 9.1EPSS: 0%CPEs: 17EXPL: 1CVE-2018-18313 – perl: Heap-based buffer read overflow in S_grok_bslash_N()
https://notcve.org/view.php?id=CVE-2018-18313
Perl before 5.26.3 has a buffer over-read via a crafted regular expression that triggers disclosure of sensitive information from process memory. Perl, en versiones anteriores a la 5.26.3, tiene una sobrelectura de búfer mediante una expresión regular manipulada que desencadena la divulgación de información sensible de la memoria del proceso. • http://seclists.org/fulldisclosure/2019/Mar/49 http://www.securitytracker.com/id/1042181 https://access.redhat.com/errata/RHSA-2019:0001 https://access.redhat.com/errata/RHSA-2019:0010 https://bugzilla.redhat.com/show_bug.cgi?id=1646738 https://github.com/Perl/perl5/commit/43b2f4ef399e2fd7240b4eeb0658686ad95f8e62 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RWQGEB543QN7SSBRKYJM6PSOC3RLYGSM https://metacpan.org/changes/release/SHAY/perl-5.26.3 https://rt& • CWE-125: Out-of-bounds Read •