
CVE-2021-3690 – undertow: buffer leak on incoming websocket PONG message may lead to DoS
https://notcve.org/view.php?id=CVE-2021-3690
19 Aug 2021 — A flaw was found in Undertow. A buffer leak on the incoming WebSocket PONG message may lead to memory exhaustion. This flaw allows an attacker to cause a denial of service. The highest threat from this vulnerability is availability. Se ha encontrado un fallo en Undertow. • https://access.redhat.com/security/cve/CVE-2021-3690 • CWE-400: Uncontrolled Resource Consumption CWE-401: Missing Release of Memory after Effective Lifetime •

CVE-2021-3621 – sssd: shell command injection in sssctl
https://notcve.org/view.php?id=CVE-2021-3621
16 Aug 2021 — A flaw was found in SSSD, where the sssctl command was vulnerable to shell command injection via the logs-fetch and cache-expire subcommands. This flaw allows an attacker to trick the root user into running a specially crafted sssctl command, such as via sudo, to gain root access. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. Se encontró un fallo en SSSD, donde el comando sssctl era vulnerable a la inyección de comandos de shell por medio de los... • https://bugzilla.redhat.com/show_bug.cgi?id=1975142 • CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection') CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') •

CVE-2021-3635 – kernel: flowtable list del corruption with kernel BUG at lib/list_debug.c:50
https://notcve.org/view.php?id=CVE-2021-3635
13 Aug 2021 — A flaw was found in the Linux kernel netfilter implementation in versions prior to 5.5-rc7. A user with root (CAP_SYS_ADMIN) access is able to panic the system when issuing netfilter netflow commands. Se ha detectado un fallo en la implementación del netfilter del kernel de Linux en versiones anteriores a 5.5-rc7. Un usuario con acceso de root (CAP_SYS_ADMIN) es capaz de hacer entrar en pánico al sistema cuando emite comandos netfilter netflow. A flaw was found in the Linux kernel netfilter implementation. • https://bugzilla.redhat.com/show_bug.cgi?id=1976946 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •

CVE-2021-3677 – postgresql: memory disclosure in certain queries
https://notcve.org/view.php?id=CVE-2021-3677
13 Aug 2021 — A flaw was found in postgresql. A purpose-crafted query can read arbitrary bytes of server memory. In the default configuration, any authenticated database user can complete this attack at will. The attack does not require the ability to create objects. If server settings include max_worker_processes=0, the known versions of this attack are infeasible. • https://bugzilla.redhat.com/show_bug.cgi?id=2001857 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •

CVE-2021-3672 – c-ares: Missing input validation of host names may lead to domain hijacking
https://notcve.org/view.php?id=CVE-2021-3672
10 Aug 2021 — A flaw was found in c-ares library, where a missing input validation check of host names returned by DNS (Domain Name Servers) can lead to output of wrong hostnames which might potentially lead to Domain Hijacking. The highest threat from this vulnerability is to confidentiality and integrity as well as system availability. Se ha encontrado un fallo en la biblioteca c-ares, en la que una falta de comprobación de la comprobación de entrada de los nombres de host devueltos por los DNS (Servidores de Nombres d... • https://bugzilla.redhat.com/show_bug.cgi?id=1988342 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •

CVE-2021-3573 – kernel: use-after-free in function hci_sock_bound_ioctl()
https://notcve.org/view.php?id=CVE-2021-3573
21 Jul 2021 — A use-after-free in function hci_sock_bound_ioctl() of the Linux kernel HCI subsystem was found in the way user calls ioct HCIUNBLOCKADDR or other way triggers race condition of the call hci_unregister_dev() together with one of the calls hci_sock_blacklist_add(), hci_sock_blacklist_del(), hci_get_conn_info(), hci_get_auth_info(). A privileged local user could use this flaw to crash the system or escalate their privileges on the system. This flaw affects the Linux kernel versions prior to 5.13-rc5. Se detec... • http://www.openwall.com/lists/oss-security/2023/07/02/1 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-416: Use After Free •

CVE-2021-20257 – QEMU: net: e1000: infinite loop while processing transmit descriptors
https://notcve.org/view.php?id=CVE-2021-20257
15 Jul 2021 — An infinite loop flaw was found in the e1000 NIC emulator of the QEMU. This issue occurs while processing transmits (tx) descriptors in process_tx_desc if various descriptor fields are initialized with invalid values. This flaw allows a guest to consume CPU cycles on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability. Se ha encontrado un fallo de bucle infinito en el emulador NIC e1000 de QEMU. • https://bugzilla.redhat.com/show_bug.cgi?id=1930087 • CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •

CVE-2021-3612 – kernel: joydev: zero size passed to joydev_handle_JSIOCSBTNMAP()
https://notcve.org/view.php?id=CVE-2021-3612
09 Jul 2021 — An out-of-bounds memory write flaw was found in the Linux kernel's joystick devices subsystem in versions before 5.9-rc1, in the way the user calls ioctl JSIOCSBTNMAP. This flaw allows a local user to crash the system or possibly escalate their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. Se ha encontrado un fallo de escritura en memoria fuera de límites en el kernel de Linux joystick devices subsystem en versiones ant... • https://bugzilla.redhat.com/show_bug.cgi?id=1974079 • CWE-20: Improper Input Validation CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-787: Out-of-bounds Write •

CVE-2021-3570 – linuxptp: missing length check of forwarded messages
https://notcve.org/view.php?id=CVE-2021-3570
06 Jul 2021 — A flaw was found in the ptp4l program of the linuxptp package. A missing length check when forwarding a PTP message between ports allows a remote attacker to cause an information leak, crash, or potentially remote code execution. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. This flaw affects linuxptp versions before 3.1.1, before 2.0.1, before 1.9.3, before 1.8.1, before 1.7.1, before 1.6.1 and before 1.5.1. Se ha encontrado un fallo en ... • https://bugzilla.redhat.com/show_bug.cgi?id=1966240 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-787: Out-of-bounds Write •

CVE-2021-3580 – nettle: Remote crash in RSA decryption via manipulated ciphertext
https://notcve.org/view.php?id=CVE-2021-3580
17 Jun 2021 — A flaw was found in the way nettle's RSA decryption functions handled specially crafted ciphertext. An attacker could use this flaw to provide a manipulated ciphertext leading to application crash and denial of service. Se ha encontrado un fallo en la manera en que las funciones de descifrado RSA de Nettle manejan el texto cifrado especialmente diseñado. Un atacante podría usar este fallo para proporcionar un texto cifrado manipulado, conllevando al bloqueo de la aplicación y la denegación de servicio A fla... • https://bugzilla.redhat.com/show_bug.cgi?id=1967983 • CWE-20: Improper Input Validation •