dnsmasq 安全漏洞

dnsmasq is a lightweight DNS forwarding and DHCP and TFTP server written in C. It can be used as a server to forward DNS, DHCP, and TFTP. A security vulnerability exists in dnsmasq that stems from the random source port behavior being disabled, allowing caching attacks...

Oracle Linux 7 : kernel (ELSA-2021-0856)

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-0856 advisory. - pinctrl devicetree: Avoid taking direct reference to device name string Aristeu Rozanski 1922902 CVE-2020-0427 - pinctrl Delete an error message...

dnsmasq -- cache poisoning vulnerability in certain configurations

Simon Kelley reports: In configurations where the forwarding server address contains an @ character for specifying a sending interface or source address, the random source port behavior was disabled, making cache poisoning attacks possible. This only affects configurations of the form...

kernel: ICMP rate limiting can be used for DNS poisoning attack

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 vulnerability is to confidentialit...

kernel: ICMP rate limiting can be used for DNS poisoning attack

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 vulnerability is to confidentialit...

kernel: ICMP rate limiting can be used for DNS poisoning attack

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 vulnerability is to confidentialit...

Oracle Linux 7 / 8 : Unbreakable Enterprise kernel-container (ELSA-2021-9007)

The remote Oracle Linux 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-9007 advisory. - xen-blkback: set ring-xenblkd to NULL after kthreadstop Pawel Wieczorkiewicz Orabug: 32260252 CVE-2020-29569 - xenbus/xenbusbackend: Disallow...

SUSE SLES15 Security Update : kernel (SUSE-SU-2020:3764-1)

The SUSE Linux Enterprise 15 SP2 RT kernel was updated to receive various security and bugfixes. The following security bugs were fixed : CVE-2020-15436: Fixed a use after free vulnerability in fs/blockdev.c which could have allowed local users to gain privileges or cause a denial of service...

SUSE SLES15 Security Update : kernel (SUSE-SU-2020:3532-1)

The SUSE Linux Enterprise 15 LTSS kernel was updated to receive various security and bug fixes. The following security bugs were fixed : CVE-2020-25705: A flaw in the way reply ICMP packets are limited in was found that allowed to quickly scan open UDP ports. This flaw allowed an off-path remote...

SUSE-SU-2020:3670-1 Security update for the Linux Kernel (Live Patch 17 for SLE 15 SP1)

This update for the Linux Kernel 4.12.14-19764 fixes several issues. The following security issues were fixed: - CVE-2020-25668: Fixed a concurrency use-after-free in confontop bsc1178622. - CVE-2020-8694: Fixed an insufficient access control in the Linux kernel driver for some IntelR Processors...

CVE-2020-25705

A flaw in ICMP packets in the Linux kernel may allow an attacker to quickly scan open UDP ports. This flaw allows an off-path remote attacker to effectively bypass source port UDP randomization. Software that relies on UDP source port randomization are indirectly affected as well on the Linux Bas...

CVE-2020-25705

A flaw in ICMP packets in the Linux kernel may allow an attacker to quickly scan open UDP ports. This flaw allows an off-path remote attacker to effectively bypass source port UDP randomization. Software that relies on UDP source port randomization are indirectly affected as well on the Linux Bas...

UBUNTU-CVE-2020-25705

A flaw in ICMP packets in the Linux kernel may allow an attacker to quickly scan open UDP ports. This flaw allows an off-path remote attacker to effectively bypass source port UDP randomization. Software that relies on UDP source port randomization are indirectly affected as well on the Linux Bas...

CVE-2020-25705

A flaw in ICMP packets in the Linux kernel may allow an attacker to quickly scan open UDP ports. This flaw allows an off-path remote attacker to effectively bypass source port UDP randomization. Software that relies on UDP source port randomization are indirectly affected as well on the Linux Bas...

frr security and bug fix update

7.0-10 - Resolves: 1867793 - FRR does not conform to the source port range specified in RFC5881 7.0-9 - Resolves: 1852476 - default permission issue eases information leaks 7.0-8 - Resolves: 1819319 - frr fails to start start if the initscripts package is missing 7.0-7 - Resolves: 1758544 - IGMPv...

Fedora: Security Advisory for prboom-plus (FEDORA-2020-3f9a846b40)

The remote host is missing an update for the Copyright C 2020 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; you can...

[SECURITY] Fedora 32 Update: prboom-plus-2.5.1.4-18.fc32

Doom is a classic 3D shoot-em-up game. PrBoom+ is a Doom source port developed from the original PrBoom project by Andrey Budko. The target of the project is to extend the original port with features that are necessary or useful...

DNS Spoofing

ruby is vulnerable to DNS spoofing. The Ruby DNS resolver library, resolv.rb, used predictable transaction IDs and a fixed source port when sending DNS requests. A remote attacker could use this flaw to spoof a malicious reply to a DNS query...

Security Bulletin: Reuse of Source Port in DataPower DNS queries (CVE-2017-1773)

Summary IBM DataPower Gateway may re-use the source port in DNS lookups. IBM has addressed the applicable CVE Vulnerability Details Relevant CVE Information: CVEID: CVE-2017-1773 DESCRIPTION: IBM WebSphere DataPower Appliances could allow an attacker using man-in-the-middle techniques to spoof DN...

Important: Red Hat Security Advisory: java-1.7.1-ibm security update

An update for java-1.7.1-ibm is now available for Red Hat Satellite 5.6 and Red Hat Satellite 5.7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available f...