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CVSS: 9.8EPSS: 1%CPEs: 39EXPL: 0

In Apache httpd 2.2.0 to 2.4.29, when generating an HTTP Digest authentication challenge, the nonce sent to prevent reply attacks was not correctly generated using a pseudo-random seed. In a cluster of servers using a common Digest authentication configuration, HTTP requests could be replayed across servers by an attacker without detection. En Apache httpd, en versiones desde la 2.2.0 hasta la 2.4.29, cuando se genera un desafío de autenticación HTTP Digest, el nonce enviado para evitar ataques replay no se generó correctamente empleando una semilla pseudoaleatoria. En un clúster de servidores, utilizando una configuración de autenticación Digest común, las peticiones HTTP se podrían reemplazar en los servidores por un atacante si que este sea detectado. • http://www.openwall.com/lists/oss-security/2018/03/24/7 http://www.securityfocus.com/bid/103524 http://www.securitytracker.com/id/1040571 https://access.redhat.com/errata/RHSA-2018:3558 https://access.redhat.com/errata/RHSA-2019:0366 https://access.redhat.com/errata/RHSA-2019:0367 https://access.redhat.com/errata/RHSA-2019:1898 https://httpd.apache.org/security/vulnerabilities_24.html https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd. • CWE-287: Improper Authentication CWE-305: Authentication Bypass by Primary Weakness •

CVSS: 6.5EPSS: 0%CPEs: 5EXPL: 1

In Exiv2 0.26, jpgimage.cpp allows remote attackers to cause a denial of service (image.cpp Exiv2::Internal::stringFormat out-of-bounds read) via a crafted file. En Exiv2 0.26, jpgimage.cpp permite que atacantes remotos provoquen una denegación de servicio (lectura fuera de límites de Exiv2::Internal::stringFormat en image.cpp) mediante un archivo manipulado. • https://access.redhat.com/errata/RHSA-2019:2101 https://github.com/Exiv2/exiv2/issues/246 https://lists.debian.org/debian-lts-announce/2023/01/msg00004.html https://security.gentoo.org/glsa/201811-14 https://access.redhat.com/security/cve/CVE-2018-8976 https://bugzilla.redhat.com/show_bug.cgi?id=1561213 • CWE-125: Out-of-bounds Read •

CVSS: 9.8EPSS: 39%CPEs: 25EXPL: 3

rsyslog librelp version 1.2.14 and earlier contains a Buffer Overflow vulnerability in the checking of x509 certificates from a peer that can result in Remote code execution. This attack appear to be exploitable a remote attacker that can connect to rsyslog and trigger a stack buffer overflow by sending a specially crafted x509 certificate. rsyslog librelp en versiones 1.2.14 y anteriores contiene una vulnerabilidad de desbordamiento de búfer en la verificación de certificados x509 desde un peer que puede resultar en la ejecución remota de código. Parece que este ataque puede ser explotable debido a que un atacante remoto puede conectarse a rsyslog y desencadena un desbordamiento de búfer basado en pila mediante el envío de un certificado x509 especialmente manipulado. A stack-based buffer overflow was found in the way librelp parses X.509 certificates. By connecting or accepting connections from a remote peer, an attacker may use a specially crafted X.509 certificate to exploit this flaw and potentially execute arbitrary code. • https://github.com/s0/rsyslog-librelp-CVE-2018-1000140 https://github.com/s0/rsyslog-librelp-CVE-2018-1000140-fixed http://packetstormsecurity.com/files/172829/librelp-Remote-Code-Execution.html https://access.redhat.com/errata/RHSA-2018:1223 https://access.redhat.com/errata/RHSA-2018:1225 https://access.redhat.com/errata/RHSA-2018:1701 https://access.redhat.com/errata/RHSA-2018:1702 https://access.redhat.com/errata/RHSA-2018:1703 https://access.redhat.com/errata/RHSA-2018:1704 • CWE-121: Stack-based Buffer Overflow CWE-787: Out-of-bounds Write •

CVSS: 5.5EPSS: 1%CPEs: 4EXPL: 1

The bfd_section_from_shdr function in elf.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.30, allows remote attackers to cause a denial of service (segmentation fault) via a large attribute section. **RECHAZADA** NO USAR ESTE NÚMERO DE CANDIDATO. ConsultIDs: ninguna. Motivo: Este candidato estaba en un grupo de CNA que no estaba asignado a ningún problema durante 2017. Notas: ninguna. • http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00072.html http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00008.html https://access.redhat.com/errata/RHBA-2019:0327 https://access.redhat.com/errata/RHSA-2018:3032 https://security.gentoo.org/glsa/201811-17 https://sourceware.org/bugzilla/show_bug.cgi?id=22809 https://usn.ubuntu.com/4336-1 https://access.redhat.com/security/cve/CVE-2018-8945 https://bugzilla.redhat.com/show_bug.cgi?id=1560827 • CWE-20: Improper Input Validation CWE-400: Uncontrolled Resource Consumption •

CVSS: 8.8EPSS: 0%CPEs: 11EXPL: 2

In LibTIFF 4.0.9, a heap-based buffer overflow occurs in the function LZWDecodeCompat in tif_lzw.c via a crafted TIFF file, as demonstrated by tiff2ps. En LibTIFF 4.0.9, ocurre un desbordamiento de búfer basado en memoria dinámica (heap) en la función LZWDecodeCompat en tif_lzw.c mediante un archivo TIFF. Esto se demuestra por tiff2ps. • http://bugzilla.maptools.org/show_bug.cgi?id=2780 https://access.redhat.com/errata/RHSA-2019:2053 https://github.com/halfbitteam/POCs/tree/master/libtiff-4.08_tiff2ps_heap_overflow https://gitlab.com/libtiff/libtiff/commit/58a898cb4459055bb488ca815c23b880c242a27d https://lists.debian.org/debian-lts-announce/2018/05/msg00008.html https://lists.debian.org/debian-lts-announce/2018/05/msg00009.html https://lists.debian.org/debian-lts-announce/2018/07/msg00002.html https://usn.ubuntu.com/3864-1& • CWE-122: Heap-based Buffer Overflow CWE-787: Out-of-bounds Write •