CVE-2019-0053 – Junos OS: Insufficient validation of environment variables in telnet client may lead to stack-based buffer overflow
https://notcve.org/view.php?id=CVE-2019-0053
Insufficient validation of environment variables in the telnet client supplied in Junos OS can lead to stack-based buffer overflows, which can be exploited to bypass veriexec restrictions on Junos OS. A stack-based overflow is present in the handling of environment variables when connecting via the telnet client to remote telnet servers. This issue only affects the telnet client — accessible from the CLI or shell — in Junos OS. Inbound telnet services are not affected by this issue. This issue affects: Juniper Networks Junos OS: 12.3 versions prior to 12.3R12-S13; 12.3X48 versions prior to 12.3X48-D80; 14.1X53 versions prior to 14.1X53-D130, 14.1X53-D49; 15.1 versions prior to 15.1F6-S12, 15.1R7-S4; 15.1X49 versions prior to 15.1X49-D170; 15.1X53 versions prior to 15.1X53-D237, 15.1X53-D496, 15.1X53-D591, 15.1X53-D69; 16.1 versions prior to 16.1R3-S11, 16.1R7-S4; 16.2 versions prior to 16.2R2-S9; 17.1 versions prior to 17.1R3; 17.2 versions prior to 17.2R1-S8, 17.2R2-S7, 17.2R3-S1; 17.3 versions prior to 17.3R3-S4; 17.4 versions prior to 17.4R1-S6, 17.4R2-S3, 17.4R3; 18.1 versions prior to 18.1R2-S4, 18.1R3-S3; 18.2 versions prior to 18.2R1-S5, 18.2R2-S2, 18.2R3; 18.2X75 versions prior to 18.2X75-D40; 18.3 versions prior to 18.3R1-S3, 18.3R2; 18.4 versions prior to 18.4R1-S2, 18.4R2. • https://github.com/dreamsmasher/inetutils-CVE-2019-0053-Patched-PKGBUILD http://packetstormsecurity.com/files/153746/FreeBSD-Security-Advisory-FreeBSD-SA-19-12.telnet.html https://kb.juniper.net/JSA10947 https://lists.debian.org/debian-lts-announce/2022/11/msg00033.html https://lists.debian.org/debian-lts-announce/2023/10/msg00013.html https://seclists.org/bugtraq/2019/Jul/45 https://security.FreeBSD.org/advisories/FreeBSD-SA-19:12.telnet.asc https://www.exploit-db.com/exploits/45982 • CWE-121: Stack-based Buffer Overflow CWE-787: Out-of-bounds Write •
CVE-2019-0052 – SRX Series: srxpfe process crash while JSF/UTM module parses specific HTTP packets
https://notcve.org/view.php?id=CVE-2019-0052
The srxpfe process may crash on SRX Series services gateways when the UTM module processes a specific fragmented HTTP packet. The packet is misinterpreted as a regular TCP packet which causes the processor to crash. This issue affects all SRX Series platforms that support URL-Filtering and have web-filtering enabled. Affected releases are Juniper Networks Junos OS: 12.3X48 versions prior to 12.3X48-D85 on SRX Series; 15.1X49 versions prior to 15.1X49-D181, 15.1X49-D190 on SRX Series; 17.3 versions on SRX Series; 17.4 versions prior to 17.4R1-S8, 17.4R2-S5, 17.4R3 on SRX Series; 18.1 versions prior to 18.1R3-S6 on SRX Series; 18.2 versions prior to 18.2R2-S1, 18.2R3 on SRX Series; 18.3 versions prior to 18.3R1-S2, 18.3R2 on SRX Series; 18.4 versions prior to 18.4R1-S1, 18.4R2 on SRX Series. El proceso srxpfe puede bloquearse en los gateways de servicios de la serie SRX cuando el módulo UTM procesa un paquete HTTP fragmentado específico. • http://www.securityfocus.com/bid/109145 https://kb.juniper.net/JSA10946 • CWE-404: Improper Resource Shutdown or Release CWE-436: Interpretation Conflict •
CVE-2019-0048 – EX4300 Series: When a firewall filter is applied to a loopback interface, other firewall filters for multicast traffic may fail
https://notcve.org/view.php?id=CVE-2019-0048
On EX4300 Series switches with TCAM optimization enabled, incoming multicast traffic matches an implicit loopback filter rule first, since it has high priority. This rule is meant for reserved multicast addresses 224.0.0.x, but incorrectly matches on 224.x.x.x. Due to this bug, when a firewall filter is applied on the loopback interface, other firewall filters might stop working for multicast traffic. The command 'show firewall filter' can be used to confirm whether the filter is working. This issue only affects the EX4300 switch. • https://kb.juniper.net/JSA10942 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVE-2019-0044 – Junos OS: SRX5000 series: Kernel crash (vmcore) upon receipt of a specific packet on fxp0 interface
https://notcve.org/view.php?id=CVE-2019-0044
Receipt of a specific packet on the out-of-band management interface fxp0 may cause the system to crash and restart (vmcore). By continuously sending a specially crafted packet to the fxp0 interface, an attacker can repetitively crash the rpd process causing prolonged Denial of Service (DoS). Affected releases are Juniper Networks SRX5000 Series: 12.1X46 versions prior to 12.1X46-D82; 12.3X48 versions prior to 12.3X48-D80; 15.1X49 versions prior to 15.1X49-D160. La recepción de un paquete específico en la interfaz de administración fuera de banda fxp0 puede hacer que el sistema se bloquee y se reinicie (vmcore). Mediante el envío continuo de un paquete especialmente creado a la interfaz fxp0, un atacante puede bloquear repetitivamente el proceso rpd y provocar una denegación de servicio (DoS) prolongada. • http://www.securityfocus.com/bid/107872 https://kb.juniper.net/JSA10936 • CWE-404: Improper Resource Shutdown or Release •
CVE-2019-0043 – Junos OS: RPD process crashes upon receipt of a specific SNMP packet
https://notcve.org/view.php?id=CVE-2019-0043
In MPLS environments, receipt of a specific SNMP packet may cause the routing protocol daemon (RPD) process to crash and restart. By continuously sending a specially crafted SNMP packet, an attacker can repetitively crash the RPD process causing prolonged denial of service. No other Juniper Networks products or platforms are affected by this issue. Affected releases are Juniper Networks Junos OS : 12.1X46 versions prior to 12.1X46-D77 on SRX Series; 12.3 versions prior to 12.3R12-S10; 12.3X48 versions prior to 12.3X48-D75 on SRX Series; 14.1X53 versions prior to 14.1X53-D48 on EX/QFX series; 15.1 versions prior to 15.1R4-S9, 15.1R7-S2; 15.1F6 versions prior to 15.1F6-S11; 15.1X49 versions prior to 15.1X49-D141, 15.1X49-D144, 15.1X49-D150 on SRX Series; 15.1X53 versions prior to 15.1X53-D234 on QFX5200/QFX5110 Series; 15.1X53 versions prior to 15.1X53-D68 on QFX10K Series; 15.1X53 versions prior to 15.1X53-D471, 15.1X53-D490 on NFX Series; 15.1X53 versions prior to 15.1X53-D590 on EX2300/EX3400 Series; 15.1X54 on ACX Series; 16.1 versions prior to 16.1R3-S10, 16.1R4-S11, 16.1R6-S5, 16.1R7; 16.1X65 versions prior to 16.1X65-D48; 16.2 versions prior to 16.2R2-S6; 17.1 versions prior to 17.1R2-S8, 17.1R3; 17.2 versions prior to 17.2R1-S7, 17.2R3; 17.2X75 versions prior to 17.2X75-D92, 17.2X75-D102, 17.2X75-D110; 17.3 versions prior to 17.3R3; 17.4 versions prior to 17.4R1-S4, 17.4R2; 18.1 versions prior to 18.1R1-S1, 18.1R2-S1, 18.1R3; 18.2X75 versions prior to 18.2X75-D10. En entornos MPLS, la recepción de un paquete SNMP específico puede provocar que el proceso rpd (Routing Protocol Daemon) se cierre inesperadamente y se reinicie. • https://kb.juniper.net/JSA10935 • CWE-404: Improper Resource Shutdown or Release •