K98221124: Multiple dnsmasq vulnerabilities CVE-2020-25684, CVE-2020-25685, and CVE-2020-25686

Security Advisory Description CVE-2020-25684 A flaw was found in dnsmasq before version 2.83. When getting a reply from a forwarded query, dnsmasq checks in the forward.c:replyquery if the reply destination address/port is used by the pending forwarded queries. However, it does not use the...

K44305703: NTP vulnerability CVE-2020-11868

Security Advisory Description The ntpd daemon in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows an off-path attacker to block unauthenticated synchronization via a server mode packet with a spoofed source IP address, because transmissions are rescheduled even when a packet lacks a valid orig...

K09604370: Linux kernel vulnerability CVE-2020-25705

Security Advisory Description A flaw in the way reply ICMP packets are limited in the Linux kernel functionality was found that allows to quickly scan open UDP ports. This flaw allows an off-path remote user to effectively bypassing source port UDP randomization. The highest threat from this...

K09940637: NTP vulnerability CVE-2019-11331

Security Advisory Description Network Time Protocol NTP, as specified in RFC 5905, uses port 123 even for modes where a fixed port number is not required, which makes it easier for remote attackers to conduct off-path attacks. CVE-2019-11331 Impact Using an off-path attack not a man-in-the-middle...

SUSE CVE-2017-12132

The DNS stub resolver in the GNU C Library aka glibc or libc6 before version 2.26, when EDNS support is enabled, will solicit large UDP responses from name servers, potentially simplifying off-path DNS spoofing attacks due to IP fragmentation...

SUSE CVE-2019-11331

Network Time Protocol NTP, as specified in RFC 5905, uses port 123 even for modes where a fixed port number is not required, which makes it easier for remote attackers to conduct off-path attacks...

SUSE CVE-2020-11868

ntpd in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows an off-path attacker to block unauthenticated synchronization via a server mode packet with a spoofed source IP address, because transmissions are rescheduled even when a packet lacks a valid origin timestamp...

SUSE CVE-2020-13817

ntpd in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows remote attackers to cause a denial of service daemon exit or system time change by predicting transmit timestamps for use in spoofed packets. The victim must be relying on unauthenticated IPv4 time sources. There must be an off-path...

SUSE CVE-2020-25686

A flaw was found in dnsmasq before version 2.83. When receiving a query, dnsmasq does not check for an existing pending request for the same name and forwards a new request. By default, a maximum of 150 pending queries can be sent to upstream servers, so there can be at most 150 queries for the...

SUSE CVE-2020-36516

An issue was discovered in the Linux kernel through 5.16.11. The mixed IPID assignment method with the hash-based IPID assignment policy allows an off-path attacker to inject data into a victim's TCP session or terminate that session...

K41440465: BIG-IP TMM vulnerability CVE-2022-26071

Security Advisory Description A flaw in the way reply ICMP packets are limited in the Traffic Management Microkernel TMM allows an attacker to quickly scan open UDP ports. This flaw allows an off-path remote attacker to effectively bypass source port UDP randomization. CVE-2022-26071 Impact A...

RHEL 9 : kernel (RHSA-2022:8267)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2022:8267 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: off-path attacker may inject data or...

kernel: off-path attacker may inject data or terminate victim's TCP session

A TCP/IP packet spoofing attack flaw was found in the Linux kernel’s TCP/IP protocol, where a Man-in-the-Middle Attack MITM performs an IP fragmentation attack and an IPID collision. This flaw allows a remote user to pretend to be the sender of the TCP/IP packet for an existing TCP/IP session...

kernel: off-path attacker may inject data or terminate victim's TCP session

A TCP/IP packet spoofing attack flaw was found in the Linux kernel’s TCP/IP protocol, where a Man-in-the-Middle Attack MITM performs an IP fragmentation attack and an IPID collision. This flaw allows a remote user to pretend to be the sender of the TCP/IP packet for an existing TCP/IP session...

RHEL 9 : kernel-rt (RHSA-2022:7933)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2022:7933 advisory. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirement...

kernel: off-path attacker may inject data or terminate victim's TCP session

A TCP/IP packet spoofing attack flaw was found in the Linux kernel’s TCP/IP protocol, where a Man-in-the-Middle Attack MITM performs an IP fragmentation attack and an IPID collision. This flaw allows a remote user to pretend to be the sender of the TCP/IP packet for an existing TCP/IP session...

RLSA-2022:7683 Moderate: kernel security, bug fix, and enhancement update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: off-path attacker may inject data or terminate victim's TCP session CVE-2020-36516 race condition in VTRESIZEX ioctl when vcconsi.d is already NULL leading to NULL pointer dereference...

SUSE-SU-2022:3123-1 Security update for the Linux Kernel (Live Patch 2 for SLE 15 SP4)

This update for the Linux Kernel 5.14.21-1504002416 fixes several issues. The following security issues were fixed: - CVE-2020-36516: Fixed an off-path attack via mixed IPID assignment method with the hash-based IPID assignment policy to inject data into a victim's TCP session or terminate that...

SUSE-SU-2022:3061-1 Security update for the Linux Kernel (Live Patch 9 for SLE 15 SP3)

This update for the Linux Kernel 5.3.18-5934 fixes several issues. The following security issues were fixed: - CVE-2020-36516: Fixed an off-path attack via mixed IPID assignment method with the hash-based IPID assignment policy to inject data into a victim's TCP session or terminate that session...

SUSE-SU-2022:3088-1 Security update for the Linux Kernel (Live Patch 29 for SLE 15 SP2)

This update for the Linux Kernel 5.3.18-15020024126 fixes several issues. The following security issues were fixed: - CVE-2020-36516: Fixed an off-path attack via mixed IPID assignment method with the hash-based IPID assignment policy to inject data into a victim's TCP session or terminate that...