CVSS: 6.8EPSS: 0%CPEs: 166EXPL: 0CVE-2021-25220 – DNS forwarders - cache poisoning vulnerability
https://notcve.org/view.php?id=CVE-2021-25220
BIND 9.11.0 -> 9.11.36 9.12.0 -> 9.16.26 9.17.0 -> 9.18.0 BIND Supported Preview Editions: 9.11.4-S1 -> 9.11.36-S1 9.16.8-S1 -> 9.16.26-S1 Versions of BIND 9 earlier than those shown - back to 9.1.0, including Supported Preview Editions - are also believed to be affected but have not been tested as they are EOL. The cache could become poisoned with incorrect records leading to queries being made to the wrong servers, which might also result in false information being returned to clients. BIND versiones 9.11.0 posteriores a 9.11.36, versiones 9.12.0 posteriores a 9.16.26, versiones 9.17.0 posteriores a 9.18.0, Ediciones Preliminares Soportadas con BIND: versiones .11.4-S1 posteriores a 9.11.36-S1, versiones 9.16.8-S1 posteriores a 9.16.26-S1, también creemos que las versiones de BIND 9 anteriores a las mostradas - hasta la versión 9.1.0, incluyendo las ediciones preliminares soportadas - también están afectadas pero no han sido probadas ya que son EOL. La caché podría envenenarse con registros incorrectos, conllevando a una realización de consultas a servidores erróneos, lo que también podría resultar en que se devolviera información falsa a clientes A cache poisoning vulnerability was found in BIND when using forwarders. Bogus NS records supplied by the forwarders may be cached and used by name if it needs to recurse for any reason. • https://cert-portal.siemens.com/productcert/pdf/ssa-637483.pdf https://kb.isc.org/v1/docs/cve-2021-25220 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2SXT7247QTKNBQ67MNRGZD23ADXU6E5U https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5VX3I2U3ICOIEI5Y7OYA6CHOLFMNH3YQ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/API7U5E7SX7BAAVFNW366FFJGD6NZZKV https://lists.fedoraproject.org/archives/list/package-announc • CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') •
CVSS: 6.5EPSS: 0%CPEs: 222EXPL: 0CVE-2022-22179 – Junos OS: jdhcpd crashes upon receiving a specific DHCP packet
https://notcve.org/view.php?id=CVE-2022-22179
A Improper Validation of Specified Index, Position, or Offset in Input vulnerability in the Juniper DHCP daemon (jdhcpd) of Juniper Networks Junos OS allows an adjacent unauthenticated attacker to cause a crash of jdhcpd and thereby a Denial of Service (DoS). In a scenario where DHCP relay or local server is configured the problem can be triggered if a DHCPv4 packet with specific options is received leading to a corruption of the options read from the packet. This corruption can then lead to jdhcpd crash and restart. This issue affects: Juniper Networks Junos OS 17.4R1 and later versions prior to 18.4R3-S10; 19.1 versions prior to 19.1R3-S7; 19.2 versions prior to 19.2R1-S8, 19.2R3-S4; 19.3 versions prior to 19.3R3-S4; 19.4 versions prior to 19.4R3-S6; 20.1 versions prior to 20.1R3-S2; 20.2 versions prior to 20.2R3-S3; 20.3 versions prior to 20.3R3-S2; 20.4 versions prior to 20.4R3-S1; 21.1 versions prior to 21.1R2-S2, 21.1R3; 21.2 versions prior to 21.2R1-S2, 21.2R2, 21.2R3; 21.3 versions prior to 21.3R1-S1, 21.3R2. Una vulnerabilidad de comprobación inapropiada de Índice, Posición o Desplazamiento Especificado en la Entrada en el demonio DHCP de Juniper (jdhcpd) del Sistema Operativo Junos de Juniper Networks permite a un atacante adyacente no autenticado causar un bloqueo de jdhcpd y por lo tanto una Denegación de Servicio (DoS). • https://kb.juniper.net/JSA11285 • CWE-20: Improper Input Validation •
CVSS: 7.5EPSS: 0%CPEs: 236EXPL: 0CVE-2022-22177 – Junos OS and Junos OS Evolved: After receiving a specific number of crafted packets snmpd will segmentation fault (SIGSEGV) requiring a manual restart.
https://notcve.org/view.php?id=CVE-2022-22177
A release of illegal memory vulnerability in the snmpd daemon of Juniper Networks Junos OS, Junos OS Evolved allows an attacker to halt the snmpd daemon causing a sustained Denial of Service (DoS) to the service until it is manually restarted. This issue impacts any version of SNMP – v1,v2, v3 This issue affects: Juniper Networks Junos OS 12.3 versions prior to 12.3R12-S20; 15.1 versions prior to 15.1R7-S11; 18.3 versions prior to 18.3R3-S6; 18.4 versions prior to 18.4R2-S9, 18.4R3-S10; 19.1 versions prior to 19.1R2-S3, 19.1R3-S7; 19.2 versions prior to 19.2R1-S8, 19.2R3-S4; 19.3 versions prior to 19.3R3-S4; 19.4 versions prior to 19.4R2-S5, 19.4R3-S6; 20.1 versions prior to 20.1R3-S2; 20.2 versions prior to 20.2R3-S3; 20.3 versions prior to 20.3R3-S1; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R2-S2, 21.1R3; 21.2 versions prior to 21.2R1-S2, 21.2R2. Juniper Networks Junos OS Evolved 21.2 versions prior to 21.2R3-EVO; 21.3 versions prior to 21.3R2-EVO. Una vulnerabilidad de liberación de memoria ilegal en el demonio snmpd de Juniper Networks Junos OS, Junos OS Evolved permite a un atacante detener el demonio snmpd causando una denegación de servicio (DoS) sostenida al servicio hasta que sea reiniciada manualmente. Este problema afecta a cualquier versión de SNMP: v1, v2, v3: Juniper Networks Junos OS 12.3 versiones anteriores a 12.3R12-S20; 15.1 versiones anteriores a 15.1R7-S11; 18.3 versiones anteriores a 18.3R3-S6; 18.4 versiones anteriores a 18.4R2-S9, 18.4R3-S10; 19.1 versiones anteriores a 19.1R2-S3, 19.1R3-S7; 19.2 versiones anteriores a 19.2R1-S8, 19.2R3-S4; 19. 3 versiones anteriores a 19.3R3-S4; 19.4 versiones anteriores a 19.4R2-S5, 19.4R3-S6; 20.1 versiones anteriores a 20.1R3-S2; versiones 20.2 anteriores a 20.2R3-S3; versiones 20.3 anteriores a 20.3R3-S1; versiones 20.4 anteriores a 20.4R3; versiones 21.1 anteriores a 21.1R2-S2, 21.1R3; 21.2 versiones anteriores a 21.2R1-S2, 21.2R2. • https://kb.juniper.net/JSA11283 https://www.juniper.net/documentation/us/en/software/junos/network-mgmt/topics/ref/statement/client-list-edit-snmp.html • CWE-755: Improper Handling of Exceptional Conditions •
CVSS: 7.4EPSS: 0%CPEs: 320EXPL: 0CVE-2022-22176 – Junos OS: In a scenario with dhcp-security and option-82 configured jdhcpd crashes upon receipt of a malformed DHCP packet
https://notcve.org/view.php?id=CVE-2022-22176
An Improper Validation of Syntactic Correctness of Input vulnerability in the Juniper DHCP daemon (jdhcpd) of Juniper Networks Junos OS allows an adjacent unauthenticated attacker sending a malformed DHCP packet to cause a crash of jdhcpd and thereby a Denial of Service (DoS). If option-82 is configured in a DHCP snooping / -security scenario, jdhcpd crashes if a specific malformed DHCP request packet is received. The DHCP functionality is impacted while jdhcpd restarts, and continued exploitation of the vulnerability will lead to the unavailability of the DHCP service and thereby a sustained DoS. This issue affects Juniper Networks Junos OS 13.2 version 13.2R1 and later versions prior to 15.1R7-S11; 18.3 versions prior to 18.3R3-S6; 18.4 versions prior to 18.4R2-S9, 18.4R3-S10; 19.1 versions prior to 19.1R2-S3, 19.1R3-S7; 19.2 versions prior to 19.2R1-S8, 19.2R3-S4; 19.3 versions prior to 19.3R2-S7, 19.3R3-S4; 19.4 versions prior to 19.4R3-S6; 20.1 versions prior to 20.1R3-S3; 20.2 versions prior to 20.2R3-S3; 20.3 versions prior to 20.3R3-S1; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R2-S1, 21.1R3; 21.2 versions prior to 21.2R1-S1, 21.2R2. This issue does not affect Juniper Networks Junos OS version 12.3R12 and prior versions. • https://kb.juniper.net/JSA11282 • CWE-20: Improper Input Validation CWE-1286: Improper Validation of Syntactic Correctness of Input •
CVSS: 7.5EPSS: 0%CPEs: 158EXPL: 0CVE-2022-22174 – Junos OS: QFX5000 Series, EX4600: Device may run out of memory, causing traffic loss, upon receipt of specific IPv6 packets
https://notcve.org/view.php?id=CVE-2022-22174
A vulnerability in the processing of inbound IPv6 packets in Juniper Networks Junos OS on QFX5000 Series and EX4600 switches may cause the memory to not be freed, leading to a packet DMA memory leak, and eventual Denial of Service (DoS) condition. Once the condition occurs, further packet processing will be impacted, creating a sustained Denial of Service (DoS) condition. The following error logs may be observed using the "show heap" command and the device may eventually run out of memory if such packets are received continuously. Jan 12 12:00:00 device-name fpc0 (buf alloc) failed allocating packet buffer Jan 12 12:00:01 device-name fpc0 (buf alloc) failed allocating packet buffer user@device-name> request pfe execute target fpc0 timeout 30 command "show heap" ID Base Total(b) Free(b) Used(b) % Name -- ---------- ----------- ----------- ----------- --- ----------- 0 246fc1a8 536870488 353653752 183216736 34 Kernel 1 91800000 16777216 12069680 4707536 28 DMA 2 92800000 75497472 69997640 5499832 7 PKT DMA DESC 3 106fc000 335544320 221425960 114118360 34 Bcm_sdk 4 97000000 176160768 200 176160568 99 Packet DMA <<<<<<<<<<<<<< 5 903fffe0 20971504 20971504 0 0 Blob This issue affects Juniper Networks Junos OS on QFX5000 Series, EX4600: 18.3R3 versions prior to 18.3R3-S6; 18.4 versions prior to 18.4R2-S9, 18.4R3-S9; 19.1 versions prior to 19.1R2-S3, 19.1R3-S7; 19.2 versions prior to 19.2R1-S8, 19.2R3-S3; 19.3 versions prior to 19.3R2-S7, 19.3R3-S4; 19.4 versions prior to 19.4R2-S5, 19.4R3-S6; 20.1 versions prior to 20.1R3-S1; 20.2 versions prior to 20.2R3-S2; 20.3 versions prior to 20.3R3-S1; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R2-S1, 21.1R3; 21.2 versions prior to 21.2R1-S1, 21.2R2. This issue does not affect Juniper Networks Junos OS: Any versions prior to 17.4R3; 18.1 versions prior to 18.1R3-S6; 18.2 versions prior to 18.2R3; 18.3 versions prior to 18.3R3; 18.4 versions prior to 18.4R2; 19.1 versions prior to 19.1R2. • https://kb.juniper.net/JSA11280 • CWE-401: Missing Release of Memory after Effective Lifetime CWE-755: Improper Handling of Exceptional Conditions •