
CVE-2020-27840 – Ubuntu Security Notice USN-4888-2
https://notcve.org/view.php?id=CVE-2020-27840
25 Mar 2021 — A flaw was found in samba. Spaces used in a string around a domain name (DN), while supposed to be ignored, can cause invalid DN strings with spaces to instead write a zero-byte into out-of-bounds memory, resulting in a crash. The highest threat from this vulnerability is to system availability. Se ha encontrado un fallo en samba. Los espacios usados en una cadena alrededor de un nombre de dominio (DN), aunque se supone que deben ser ignorados, pueden causar cadenas DN no válidas con espacios en lugar ... • https://bugzilla.redhat.com/show_bug.cgi?id=1941400 • CWE-125: Out-of-bounds Read •

CVE-2021-20277 – samba: Out of bounds read in AD DC LDAP server
https://notcve.org/view.php?id=CVE-2021-20277
25 Mar 2021 — A flaw was found in Samba's libldb. Multiple, consecutive leading spaces in an LDAP attribute can lead to an out-of-bounds memory write, leading to a crash of the LDAP server process handling the request. The highest threat from this vulnerability is to system availability. Se encontró un fallo en libldb de Samba. Múltiples espacios iniciales consecutivos en un atributo LDAP pueden conllevar a una escritura de memoria fuera de los límites, conllevando a un bloqueo del proceso del servidor LDAP que maneja la... • https://bugzilla.redhat.com/show_bug.cgi?id=1941402 • CWE-125: Out-of-bounds Read CWE-787: Out-of-bounds Write •

CVE-2021-28971 – kernel: System crash in intel_pmu_drain_pebs_nhm in arch/x86/events/intel/ds.c
https://notcve.org/view.php?id=CVE-2021-28971
22 Mar 2021 — In intel_pmu_drain_pebs_nhm in arch/x86/events/intel/ds.c in the Linux kernel through 5.11.8 on some Haswell CPUs, userspace applications (such as perf-fuzzer) can cause a system crash because the PEBS status in a PEBS record is mishandled, aka CID-d88d05a9e0b6. En la función intel_pmu_drain_pebs_nhm en el archivo arch/x86/events/intel/ds.c en el kernel de Linux versiones hasta 5.11.8 en algunas CPU Haswell, las aplicaciones de espacio de usuario (como perf-fuzzer) pueden causar un bloqueo del sistema porqu... • https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d88d05a9e0b6d9356e97129d4ff9942d765f46ea • CWE-476: NULL Pointer Dereference CWE-755: Improper Handling of Exceptional Conditions •

CVE-2021-28972 – Ubuntu Security Notice USN-4982-1
https://notcve.org/view.php?id=CVE-2021-28972
22 Mar 2021 — In drivers/pci/hotplug/rpadlpar_sysfs.c in the Linux kernel through 5.11.8, the RPA PCI Hotplug driver has a user-tolerable buffer overflow when writing a new device name to the driver from userspace, allowing userspace to write data to the kernel stack frame directly. This occurs because add_slot_store and remove_slot_store mishandle drc_name '\0' termination, aka CID-cc7a0bb058b8. En el archivo drivers/pci/hotplug/rpadlpar_sysfs.c en el kernel de Linux versiones hasta 5.11.8, el controlador RPA PCI Hotplu... • https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cc7a0bb058b85ea03db87169c60c7cfdd5d34678 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •

CVE-2021-28964 – Ubuntu Security Notice USN-5361-1
https://notcve.org/view.php?id=CVE-2021-28964
22 Mar 2021 — A race condition was discovered in get_old_root in fs/btrfs/ctree.c in the Linux kernel through 5.11.8. It allows attackers to cause a denial of service (BUG) because of a lack of locking on an extent buffer before a cloning operation, aka CID-dbcc7d57bffc. Se detectó una condición de carrera en la función get_old_root en el archivo fs/btrfs/ctree.c en el kernel de Linux versiones hasta 5.11.8. Permite a atacantes causar una denegación de servicio (BUG) debido a una falta de bloqueo en un búfer de exte... • https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=dbcc7d57bffc0c8cac9dac11bec548597d59a6a5 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •

CVE-2020-27171 – Kernel Live Patch Security Notice LSN-0075-1
https://notcve.org/view.php?id=CVE-2020-27171
20 Mar 2021 — An issue was discovered in the Linux kernel before 5.11.8. kernel/bpf/verifier.c has an off-by-one error (with a resultant integer underflow) affecting out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory, aka CID-10d2bb2e6b1d. Se detectó un problema en el kernel de Linux versiones anteriores a 5.11.8. El archivo kernel/bpf/verifier.c presenta un error por un paso (con un subdesbordamiento de... • http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.html • CWE-193: Off-by-one Error •

CVE-2020-27170 – kernel: Speculation on pointer arithmetic against bpf_context pointer
https://notcve.org/view.php?id=CVE-2020-27170
20 Mar 2021 — An issue was discovered in the Linux kernel before 5.11.8. kernel/bpf/verifier.c performs undesirable out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory, aka CID-f232326f6966. This affects pointer types that do not define a ptr_limit. Se detectó un problema en el kernel de Linux versiones anteriores a 5.11.8. El archivo kernel/bpf/verifier.c lleva a cabo especulaciones no deseadas fuera de ... • http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.html • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-203: Observable Discrepancy •

CVE-2021-28952 – Ubuntu Security Notice USN-4984-1
https://notcve.org/view.php?id=CVE-2021-28952
20 Mar 2021 — An issue was discovered in the Linux kernel through 5.11.8. The sound/soc/qcom/sdm845.c soundwire device driver has a buffer overflow when an unexpected port ID number is encountered, aka CID-1c668e1c0a0f. (This has been fixed in 5.12-rc4.) Se detectó un problema en el kernel de Linux versiones hasta 5.11.8. El controlador de dispositivo soundwire del archivo sound/soc/qcom/sdm845.c presenta un desbordamiento del búfer cuando es encontrado un número de identificación de puerto no previsto, también se c... • https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=1c668e1c0a0f74472469cd514f40c9012b324c31 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •

CVE-2021-28951 – Ubuntu Security Notice USN-4948-1
https://notcve.org/view.php?id=CVE-2021-28951
20 Mar 2021 — An issue was discovered in fs/io_uring.c in the Linux kernel through 5.11.8. It allows attackers to cause a denial of service (deadlock) because exit may be waiting to park a SQPOLL thread, but concurrently that SQPOLL thread is waiting for a signal to start, aka CID-3ebba796fa25. Se detectó un problema en el archivo fs/io_uring.c en el kernel de Linux versiones hasta 5.11.8. Permite a atacantes causar una denegación de servicio (deadlock) porque la salida puede estar esperando para estacionar un hilo ... • https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=3ebba796fa251d042be42b929a2d916ee5c34a49 • CWE-667: Improper Locking •

CVE-2021-27906 – A carefully crafted PDF file can trigger an OutOfMemory-Exception while loading the file
https://notcve.org/view.php?id=CVE-2021-27906
19 Mar 2021 — A carefully crafted PDF file can trigger an OutOfMemory-Exception while loading the file. This issue affects Apache PDFBox version 2.0.22 and prior 2.0.x versions. Un archivo PDF cuidadosamente diseñado puede desencadenar una excepción OutOfMemory-Exception mientras se carga el archivo. Este problema afecta a Apache PDFBox versión 2.0.22 y versiones anteriores 2.0.x This release of Red Hat Fuse 7.9.0 serves as a replacement for Red Hat Fuse 7.8, and includes bug fixes and enhancements, which are docume... • http://www.openwall.com/lists/oss-security/2021/03/19/10 • CWE-400: Uncontrolled Resource Consumption CWE-789: Memory Allocation with Excessive Size Value •