CVSS: 7.5EPSS: 0%CPEs: 5EXPL: 0CVE-2018-20102 – haproxy: Out-of-bounds read in dns.c:dns_validate_dns_response() allows for memory disclosure
https://notcve.org/view.php?id=CVE-2018-20102
An out-of-bounds read in dns_validate_dns_response in dns.c was discovered in HAProxy through 1.8.14. Due to a missing check when validating DNS responses, remote attackers might be able read the 16 bytes corresponding to an AAAA record from the non-initialized part of the buffer, possibly accessing anything that was left on the stack, or even past the end of the 8193-byte buffer, depending on the value of accepted_payload_size. Se ha descubierto una lectura fuera de límites en dns_validate_dns_response en dns.c en HAProxy hasta la versión 1.8.14. Debido a la falta de una comprobación al validar respuestas DNS, los atacantes remotos pueden leer los 16 bits que corresponden a un registro AAAA de la parte no inicializada del búfer, pudiendo acceder a cualquier cosa que haya quedado en la pila, o incluso más allá del final del búfer de 8193 bytes, dependiendo del valor de accepted_payload_size. • http://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=efbbdf72992cd20458259962346044cafd9331c0 http://www.securityfocus.com/bid/106223 https://access.redhat.com/errata/RHBA-2019:0326 https://access.redhat.com/errata/RHBA-2019:0327 https://access.redhat.com/errata/RHSA-2019:1436 https://lists.debian.org/debian-lts-announce/2022/05/msg00045.html https://usn.ubuntu.com/3858-1 https://access.redhat.com/security/cve/CVE-2018-20102 https://bugzilla.redhat.com/show_bug.cgi?id=1658874 • CWE-125: Out-of-bounds Read •
CVSS: 7.5EPSS: 0%CPEs: 5EXPL: 0CVE-2018-20103 – haproxy: Infinite recursion via crafted packet allows stack exhaustion and denial of service
https://notcve.org/view.php?id=CVE-2018-20103
An issue was discovered in dns.c in HAProxy through 1.8.14. In the case of a compressed pointer, a crafted packet can trigger infinite recursion by making the pointer point to itself, or create a long chain of valid pointers resulting in stack exhaustion. Se ha descubierto un problema en dns.c en HAProxy hasta la versión 1.8.14. En el caso de un puntero comprimido, un paquete manipulado puede desencadenar una recursión infinita haciendo que el puntero se señale a sí mismo o cree una cadena larga de punteros válidos, lo que resulta en el agotamiento de la pila. • http://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=58df5aea0a0c926b2238f65908f5e9f83d1cca25 http://www.securityfocus.com/bid/106280 https://access.redhat.com/errata/RHBA-2019:0326 https://access.redhat.com/errata/RHBA-2019:0327 https://access.redhat.com/errata/RHSA-2019:1436 https://lists.debian.org/debian-lts-announce/2022/05/msg00045.html https://usn.ubuntu.com/3858-1 https://access.redhat.com/security/cve/CVE-2018-20103 https://bugzilla.redhat.com/show_bug.cgi?id=1658876 • CWE-400: Uncontrolled Resource Consumption CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •
CVSS: 6.1EPSS: 0%CPEs: 17EXPL: 1CVE-2018-18397 – kernel: userfaultfd bypasses tmpfs file permissions
https://notcve.org/view.php?id=CVE-2018-18397
The userfaultfd implementation in the Linux kernel before 4.19.7 mishandles access control for certain UFFDIO_ ioctl calls, as demonstrated by allowing local users to write data into holes in a tmpfs file (if the user has read-only access to that file, and that file contains holes), related to fs/userfaultfd.c and mm/userfaultfd.c. La implementación de userfaultfd en el kernel de Linux en versiones anteriores a la 4.17 gestiona de manera incorrecta para ciertas llamadas ioctl UFFDIO_, tal y como queda demostrado al permitir que usuarios locales escriban datos en huecos en un archivo tmpfs (si el usuario tiene acceso de solo lectura a dicho archivo que contiene huecos). Esto está relacionado con fs/userfaultfd.c y mm/userfaultfd.c. A flaw was found in the Linux kernel with files on tmpfs and hugetlbfs. An attacker is able to bypass file permissions on filesystems mounted with tmpfs/hugetlbs to modify a file and possibly disrupt normal system behavior. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=29ec90660d68bbdd69507c1c8b4e33aa299278b1 https://access.redhat.com/errata/RHBA-2019:0327 https://access.redhat.com/errata/RHSA-2019:0163 https://access.redhat.com/errata/RHSA-2019:0202 https://access.redhat.com/errata/RHSA-2019:0324 https://access.redhat.com/errata/RHSA-2019:0831 https://bugs.chromium.org/p/project-zero/issues/detail?id=1700 https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.87& • CWE-20: Improper Input Validation CWE-863: Incorrect Authorization •
CVSS: 8.2EPSS: 0%CPEs: 3EXPL: 1CVE-2018-1000863
https://notcve.org/view.php?id=CVE-2018-1000863
A data modification vulnerability exists in Jenkins 2.153 and earlier, LTS 2.138.3 and earlier in User.java, IdStrategy.java that allows attackers to submit crafted user names that can cause an improper migration of user record storage formats, potentially preventing the victim from logging into Jenkins. Existe una vulnerabilidad de modificación de datos en Jenkins en versiones 2.153 y anteriores, y LTS 2.138.3 y anteriores en User.java e IdStrategy.java que permite que los atacantes envíen nombres de usuario manipulados que pueden provocar la mitigación incorrecta de formatos de almacenamiento de registros de usuario, lo que podría evitar que la víctima inicie sesión en Jenkins. • http://www.securityfocus.com/bid/106176 https://access.redhat.com/errata/RHBA-2019:0024 https://jenkins.io/security/advisory/2018-12-05/#SECURITY-1072 https://www.tenable.com/security/research/tra-2018-43 • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') •
CVSS: 8.8EPSS: 0%CPEs: 2EXPL: 0CVE-2018-1000866
https://notcve.org/view.php?id=CVE-2018-1000866
A sandbox bypass vulnerability exists in Pipeline: Groovy Plugin 2.59 and earlier in groovy-sandbox/src/main/java/org/kohsuke/groovy/sandbox/SandboxTransformer.java, groovy-cps/lib/src/main/java/com/cloudbees/groovy/cps/SandboxCpsTransformer.java that allows attackers with Job/Configure permission, or unauthorized attackers with SCM commit privileges and corresponding pipelines based on Jenkinsfiles set up in Jenkins, to execute arbitrary code on the Jenkins master JVM Existe una vulnerabilidad de omisión del sandbox en Pipeline: Groovy Plugin 2.59 y anteriores en groovy-sandbox/src/main/java/org/kohsuke/groovy/sandbox/SandboxTransformer.java y groovy-cps/lib/src/main/java/com/cloudbees/groovy/cps/SandboxCpsTransformer.java que permite que los atacantes con el permiso Job/Configure, o atacantes no autorizados con privilegios del commit SCM y las pipelines basadas en Jenkinsfiles establecidas en Jenkins, ejecuten código arbitrario en el maestro JVM de Jenkins. • https://access.redhat.com/errata/RHBA-2019:0326 https://access.redhat.com/errata/RHBA-2019:0327 https://jenkins.io/security/advisory/2018-10-29/#SECURITY-1186 • CWE-269: Improper Privilege Management •