CVSS: 9.1EPSS: 0%CPEs: 19EXPL: 0CVE-2022-1586 – pcre2: Out-of-bounds read in compile_xclass_matchingpath in pcre2_jit_compile.c
https://notcve.org/view.php?id=CVE-2022-1586
An out-of-bounds read vulnerability was discovered in the PCRE2 library in the compile_xclass_matchingpath() function of the pcre2_jit_compile.c file. This involves a unicode property matching issue in JIT-compiled regular expressions. The issue occurs because the character was not fully read in case-less matching within JIT. Se ha detectado una vulnerabilidad de lectura fuera de límites en la biblioteca PCRE2 en la función compile_xclass_matchingpath() del archivo pcre2_jit_compile.c. Esto implica un problema de coincidencia de propiedades unicode en expresiones regulares compiladas en JIT. • https://bugzilla.redhat.com/show_bug.cgi?id=2077976%2C https://github.com/PCRE2Project/pcre2/commit/50a51cb7e67268e6ad417eb07c9de9bfea5cc55a%2C https://github.com/PCRE2Project/pcre2/commit/d4fa336fbcc388f89095b184ba6d99422cfc676c https://lists.debian.org/debian-lts-announce/2023/03/msg00014.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DWNG2NS3GINO6LQYUVC4BZLUQPJ3DYHA https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JXINO3KKI5DICQ45E2FKD6MKVMGJLEKJ https:&# • CWE-125: Out-of-bounds Read •
CVSS: 7.8EPSS: 0%CPEs: 8EXPL: 2CVE-2022-1158 – kernel: KVM: cmpxchg_gpte can write to pfns outside the userspace region
https://notcve.org/view.php?id=CVE-2022-1158
A flaw was found in KVM. When updating a guest's page table entry, vm_pgoff was improperly used as the offset to get the page's pfn. As vaddr and vm_pgoff are controllable by user-mode processes, this flaw allows unprivileged local users on the host to write outside the userspace region and potentially corrupt the kernel, resulting in a denial of service condition. Se ha encontrado un fallo en KVM. Cuando era actualizada la entrada de la tabla de páginas de un huésped, vm_pgoff era usado incorrectamente como desplazamiento para obtener el pfn de la página. • https://bugzilla.redhat.com/show_bug.cgi?id=2069793 https://security.netapp.com/advisory/ntap-20230214-0003 https://www.openwall.com/lists/oss-security/2022/04/08/4 https://access.redhat.com/security/cve/CVE-2022-1158 • CWE-416: Use After Free •
CVSS: 7.5EPSS: 0%CPEs: 3EXPL: 0CVE-2022-0934 – dnsmasq: Heap use after free in dhcp6_no_relay
https://notcve.org/view.php?id=CVE-2022-0934
A single-byte, non-arbitrary write/use-after-free flaw was found in dnsmasq. This flaw allows an attacker who sends a crafted packet processed by dnsmasq, potentially causing a denial of service. En dnsmasq ha sido encontrado un fallo de escritura/uso de memoria previamente liberada de un byte no arbitrario. Este fallo permite a un atacante que envíe un paquete diseñado procesado por dnsmasq, causando potencialmente una denegación de servicio • https://access.redhat.com/security/cve/CVE-2022-0934 https://bugzilla.redhat.com/show_bug.cgi?id=2057075 https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016272.html https://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=03345ecefeb0d82e3c3a4c28f27c3554f0611b39 • CWE-416: Use After Free •
CVSS: 5.5EPSS: 0%CPEs: 34EXPL: 0CVE-2021-3669 – kernel: reading /proc/sysvipc/shm does not scale with large shared memory segment counts
https://notcve.org/view.php?id=CVE-2021-3669
A flaw was found in the Linux kernel. Measuring usage of the shared memory does not scale with large shared memory segment counts which could lead to resource exhaustion and DoS. Se ha encontrado un fallo en el kernel de Linux. La medición del uso de la memoria compartida no escala con grandes recuentos de segmentos de memoria compartida, lo que podría conllevar a el agotamiento de recursos y el DoS. • https://access.redhat.com/security/cve/CVE-2021-3669 https://bugzilla.redhat.com/show_bug.cgi?id=1980619 https://bugzilla.redhat.com/show_bug.cgi?id=1986473 https://security-tracker.debian.org/tracker/CVE-2021-3669 • CWE-400: Uncontrolled Resource Consumption CWE-770: Allocation of Resources Without Limits or Throttling •
CVSS: 6.8EPSS: 0%CPEs: 8EXPL: 0CVE-2021-20316 – samba: Symlink race error can allow metadata read and modify outside of the exported share
https://notcve.org/view.php?id=CVE-2021-20316
A flaw was found in the way Samba handled file/directory metadata. This flaw allows an authenticated attacker with permissions to read or modify share metadata, to perform this operation outside of the share. Se ha encontrado un fallo en la forma en que Samba maneja los metadatos de los archivos/directorios. Este fallo permite a un atacante autenticado con permisos para leer o modificar los metadatos del recurso compartido, llevar a cabo esta operación fuera del recurso compartido. • https://access.redhat.com/security/cve/CVE-2021-20316 https://bugzilla.redhat.com/show_bug.cgi?id=2009673 https://bugzilla.samba.org/show_bug.cgi?id=14842 https://security-tracker.debian.org/tracker/CVE-2021-20316 https://security.gentoo.org/glsa/202309-06 https://www.samba.org/samba/security/CVE-2021-20316.html • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •