NewStart CGSL CORE 5.05 / MAIN 5.05 : dnsmasq Multiple Vulnerabilities (NS-SA-2021-0183)

The remote NewStart CGSL host, running version CORE 5.05 / MAIN 5.05, has dnsmasq packages installed that are affected by multiple vulnerabilities: - A vulnerability was found in dnsmasq before version 2.81, where the memory leak allows remote attackers to cause a denial of service memory...

NewStart CGSL CORE 5.05 / MAIN 5.05 : bind Multiple Vulnerabilities (NS-SA-2021-0153)

The remote NewStart CGSL host, running version CORE 5.05 / MAIN 5.05, has bind packages installed that are affected by multiple vulnerabilities: - In BIND 9.0.0 - 9.11.21, 9.12.0 - 9.16.5, 9.17.0 - 9.17.3, also affects 9.9.3-S1 - 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker on...

CVE-2021-20322

A flaw in the processing of received ICMP errors ICMP fragment needed and ICMP redirect in the Linux kernel functionality was found to allow the ability to quickly scan open UDP ports. This flaw allows an off-path remote user to effectively bypass the source port UDP randomization. The highest...

EulerOS Virtualization 3.0.2.2 : ntp (EulerOS-SA-2021-2151)

According to the versions of the ntp packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - 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 serv...

SUSE: Security Advisory (SUSE-SU-2020:3507-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2021 Greenbone AG 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-only ifdescription...

EulerOS 2.0 SP3 : dnsmasq (EulerOS-SA-2021-1775)

According to the versions of the dnsmasq packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - A vulnerability was found in the implementation of DNSSEC in Dnsmasq up to and including 2.78. Wildcard synthesized NSEC records could be...

EulerOS Virtualization 2.9.1 : dnsmasq (EulerOS-SA-2021-1733)

According to the versions of the dnsmasq package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - A flaw was found in dnsmasq. A heap-based buffer overflow was discovered in dnsmasq when DNSSEC is enabled and before it validate...

F5 Networks BIG-IP : Linux kernel vulnerability (K09604370)

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...

EulerOS 2.0 SP3 : dnsmasq (EulerOS-SA-2021-1374)

According to the versions of the dnsmasq packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - A flaw was found in dnsmasq before version 2.83. A heap-based buffer overflow was discovered in the way RRSets are sorted before validating wit...

EulerOS 2.0 SP9 : dnsmasq (EulerOS-SA-2021-1263)

According to the versions of the dnsmasq package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - A flaw was found in dnsmasq before version 2.83. A heap-based buffer overflow was discovered in the way RRSets are sorted before validating with...

dnsmasq: loose query name check in reply_query() makes forging replies easier for an off-path attacker

A flaw was found in dnsmasq. When getting a reply from a forwarded query, dnsmasq checks in forward.c:replyquery, which is the forwarded query that matches the reply, by only using a weak hash of the query name. Due to the weak hash CRC32 when dnsmasq is compiled without DNSSEC, SHA-1 when it is...

dnsmasq: loose query name check in reply_query() makes forging replies easier for an off-path attacker

A flaw was found in dnsmasq. When getting a reply from a forwarded query, dnsmasq checks in forward.c:replyquery, which is the forwarded query that matches the reply, by only using a weak hash of the query name. Due to the weak hash CRC32 when dnsmasq is compiled without DNSSEC, SHA-1 when it is...

dnsmasq: multiple queries forwarded for the same name makes forging replies easier for an off-path attacker

A flaw was found in dnsmasq. 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 same name. This flaw...

CentOS 8 : dnsmasq (CESA-2021:0150)

The remote CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2021:0150 advisory. - dnsmasq: heap-based buffer overflow in sortrrset when DNSSEC is enabled CVE-2020-25681 - dnsmasq: buffer overflow in extractname due to missing lengt...

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 same name. This flaw allows an off-path attacker on the network to substantially reduce the number of attempts that it would have to perform to forge a reply and have it accepted by dnsmasq. This issue is mentioned in the "Birthday Attacks" section of RFC5452. If chained with CVE-2020-25684 the attack complexity of a successful attack is reduced. The highest threat from this vulnerability is to data integrity.

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Amazon Linux 2 : dnsmasq (ALAS-2021-1587)

The version of dnsmasq installed on the remote host is prior to 2.76-16. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2021-1587 advisory. A flaw was found in dnsmasq. When getting a reply from a forwarded query, dnsmasq checks in the forward.c:replyquery if th...

Scientific Linux Security Update : dnsmasq on SL7.x x86_64 (2021:0153)

The remote Scientific Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the SLSA-2021:0153-1 advisory. - dnsmasq: loose address/port check in replyquery makes forging replies easier for an off-path attacker CVE-2020-25684 - dnsmasq: loose query nam...

Medium: dnsmasq

Issue Overview: A flaw was found in dnsmasq. 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 address/port to retrieve the exact forwarded query,...

CentOS 7 : dnsmasq (RHSA-2021:0153)

The remote CentOS Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:0153 advisory. - 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...

dnsmasq: loose query name check in reply_query() makes forging replies easier for an off-path attacker

A flaw was found in dnsmasq. When getting a reply from a forwarded query, dnsmasq checks in forward.c:replyquery, which is the forwarded query that matches the reply, by only using a weak hash of the query name. Due to the weak hash CRC32 when dnsmasq is compiled without DNSSEC, SHA-1 when it is...