CVSS: 7.5EPSS: 0%CPEs: 5EXPL: 1CVE-2018-20406 – python: Integer overflow in Modules/_pickle.c allows for memory exhaustion if serializing gigabytes of data
https://notcve.org/view.php?id=CVE-2018-20406
Modules/_pickle.c in Python before 3.7.1 has an integer overflow via a large LONG_BINPUT value that is mishandled during a "resize to twice the size" attempt. This issue might cause memory exhaustion, but is only relevant if the pickle format is used for serializing tens or hundreds of gigabytes of data. This issue is fixed in: v3.4.10, v3.4.10rc1; v3.5.10, v3.5.10rc1, v3.5.7, v3.5.7rc1, v3.5.8, v3.5.8rc1, v3.5.8rc2, v3.5.9; v3.6.10, v3.6.10rc1, v3.6.11, v3.6.11rc1, v3.6.12, v3.6.7, v3.6.7rc1, v3.6.7rc2, v3.6.8, v3.6.8rc1, v3.6.9, v3.6.9rc1; v3.7.1, v3.7.1rc1, v3.7.1rc2, v3.7.2, v3.7.2rc1, v3.7.3, v3.7.3rc1, v3.7.4, v3.7.4rc1, v3.7.4rc2, v3.7.5, v3.7.5rc1, v3.7.6, v3.7.6rc1, v3.7.7, v3.7.7rc1, v3.7.8, v3.7.8rc1, v3.7.9. Modules/_pickle.c en Python, en versiones anteriores a la 3.7.1, tiene un desbordamiento de enteros mediante un valor LONG_BINPUT largo que se gestiona de manera incorrecta durante un intento de "redimensionar al tamaño doble". Este problema podría provocar el agotamiento de memoria, pero solo es relevante si el formato picke se emplea para serializar decenas o cientos de gigabytes de datos.Este problema está resuelto en las versiones: v3.4.10, v3.4.10rc1; v3.5.10, v3.5.10rc1, v3.5.7, v3.5.7rc1, v3.5.8, v3.5.8rc1, v3. 5.8rc2, v3.5.9; v3.6.10, v3.6.10rc1, v3.6.11, v3.6.11rc1, v3.6.12, v3.6.7, v3.6.7rc1, v3.6.7rc2, v3.6.6. 8, v3.6.8rc1, v3.6.9, v3.6.9rc1; v3.7.1, v3.7.1rc1, v3.7.1rc2, v3.7.2, v3.7.2rc1, v3.7.3, v3.7.3rc1, v3.7. 4, v3.7.4rc1, v3.7.4rc2, v3.7.5, v3.7.5rc1, v3.7.6, v3.7.6rc1, v3.7.7, v3.7.7rc1, v3.7.8, v3.7.8rc1, v3.7.9. • http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html https://access.redhat.com/errata/RHSA-2019:3725 https://bugs.python.org/issue34656 https://github.com/python/cpython/commit/a4ae828ee416a66d8c7bf5ee71d653c2cc6a26dd https://lists.debian.org/debian-lts-announce/2019/02/msg00011.html https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/46PVWY5LFP4BRPG3BVQ5QEEFYBVEXHCK https://lists.fedorap • CWE-190: Integer Overflow or Wraparound CWE-400: Uncontrolled Resource Consumption •
CVSS: 7.5EPSS: 0%CPEs: 16EXPL: 0CVE-2018-14647 – python: Missing salt initialization in _elementtree.c module
https://notcve.org/view.php?id=CVE-2018-14647
Python's elementtree C accelerator failed to initialise Expat's hash salt during initialization. This could make it easy to conduct denial of service attacks against Expat by constructing an XML document that would cause pathological hash collisions in Expat's internal data structures, consuming large amounts CPU and RAM. The vulnerability exists in Python versions 3.7.0, 3.6.0 through 3.6.6, 3.5.0 through 3.5.6, 3.4.0 through 3.4.9, 2.7.0 through 2.7.15. El acelerador de C elementtree en Python no inicializa la sal del hash Expat durante la inicialización. Esto podría facilitar llevar a cabo ataques de denegación de servicio (DoS) contra Expat construyendo un documento XML que provocaría colisiones de hashes en las estructuras internas de datos de Expat, consumiendo grandes cantidades de CPU y RAM. • http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html http://www.securityfocus.com/bid/105396 http://www.securitytracker.com/id/1041740 https://access.redhat.com/errata/RHSA-2019:1260 https://access.redhat.com/errata/RHSA-2019:2030 https://access.redhat.com/errata/RHSA-2019:3725 https://bugs.python.org/issue34623 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14647 https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0%40%3Cissues.boo • CWE-335: Incorrect Usage of Seeds in Pseudo-Random Number Generator (PRNG) CWE-665: Improper Initialization CWE-909: Missing Initialization of Resource •
CVSS: 7.5EPSS: 0%CPEs: 27EXPL: 0CVE-2018-1061 – python: DOS via regular expression backtracking in difflib.IS_LINE_JUNK method in difflib
https://notcve.org/view.php?id=CVE-2018-1061
python before versions 2.7.15, 3.4.9, 3.5.6rc1, 3.6.5rc1 and 3.7.0 is vulnerable to catastrophic backtracking in the difflib.IS_LINE_JUNK method. An attacker could use this flaw to cause denial of service. python en versiones anteriores a la 2.7.15, 3.4.9, 3.5.6rc1, 3.6.5rc1 y 3.7.0 es vulnerable a backtracking catastrófico en el método difflib.IS_LINE_JUNK. Un atacante podría utilizar este fallo para provocar una denegación de servicio (DoS). A flaw was found in the way catastrophic backtracking was implemented in python's difflib.IS_LINE_JUNK method. An attacker could use this flaw to cause denial of service. • http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html http://www.securitytracker.com/id/1042001 https://access.redhat.com/errata/RHBA-2019:0327 https://access.redhat.com/errata/RHSA-2018:3041 https://access.redhat.com/errata/RHSA-2018:3505 https://access.redhat.com/errata/RHSA-2019:1260 https://access.redhat.com/errata/RHSA-2019:3725 https://bugs.python.org/issue32981 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1061 https://docs.python.org/ • CWE-20: Improper Input Validation •
CVSS: 7.2EPSS: 0%CPEs: 9EXPL: 1CVE-2018-1000117
https://notcve.org/view.php?id=CVE-2018-1000117
Python Software Foundation CPython version From 3.2 until 3.6.4 on Windows contains a Buffer Overflow vulnerability in os.symlink() function on Windows that can result in Arbitrary code execution, likely escalation of privilege. This attack appears to be exploitable via a python script that creates a symlink with an attacker controlled name or location. This vulnerability appears to have been fixed in 3.7.0 and 3.6.5. Python Software Foundation CPython, desde la versión 3.2 hasta la 3.6.4 en Windows, contiene una vulnerabilidad de desbordamiento de búfer en la función os.symlink() de Windows que puede resultar en la ejecución de código arbitrario y en un escalado de privilegios. El ataque parece ser explotable mediante un script de python que crea un symlink con un nombre o ubicación controlado por un atacante. • https://github.com/u0pattern/CVE-2018-1000117-Exploit https://bugs.python.org/issue33001 https://github.com/python/cpython/pull/5989 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •
CVSS: 6.5EPSS: 3%CPEs: 5EXPL: 0CVE-2016-3189
https://notcve.org/view.php?id=CVE-2016-3189
Use-after-free vulnerability in bzip2recover in bzip2 1.0.6 allows remote attackers to cause a denial of service (crash) via a crafted bzip2 file, related to block ends set to before the start of the block. Vulnerabilidad de uso después de liberación de memoria en bzip2recover en bzip2 1.0.6 permite a atacantes remotos provocar una denegación de servicio (caída) a través de un archivo bzip2 manipulado, relacionado con el establecimiento de extremos de bloque antes del inicio del bloque. • http://packetstormsecurity.com/files/153644/Slackware-Security-Advisory-bzip2-Updates.html http://packetstormsecurity.com/files/153957/FreeBSD-Security-Advisory-FreeBSD-SA-19-18.bzip2.html http://www.openwall.com/lists/oss-security/2016/06/20/1 http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html http://www.securityfocus.com/bid/91297 http://www.securitytracker.com/id/1036132 https://bugzilla.redhat.com/show_bug.cgi?id=1319648 https://lists.apache.org/thread.html/r19b4a70ac5 •