CVE-2020-25685

A flaw was found in dnsmasq before version 2.83. 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 DNSSE...

UBUNTU-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 address/port to retrieve the exact forwarded query,...

dnsmasq by Simon Kelley (Update A)

1. EXECUTIVE SUMMARY CVSS v3 8.1 ATTENTION: Exploitable remotely/low skill level to exploit Vendor: dnsmasq by Simon Kelley Equipment: dnsmasq Vulnerabilities: Heap-based Buffer Overflow, Insufficient Verification of Data Authenticity, Use of a Broken or Risky Cryptographic Algorithm CISA is awar...

UBUNTU-CVE-2020-25685

A flaw was found in dnsmasq before version 2.83. 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 DNSSE...

Dnsmasq is vulnerable to memory corruption and cache poisoning

Overview Dnsmasq is vulnerable to a set of memory corruption issues handling DNSSEC data and a second set of issues validating DNS responses. These vulnerabilities could allow an attacker to corrupt memory on a vulnerable system and perform cache poisoning attacks against a vulnerable environment...

Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : Dnsmasq vulnerabilities (USN-4698-1)

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4698-1 advisory. Moshe Kol and Shlomi Oberman discovered that Dnsmasq incorrectly handled memory when sorting RRsets. A remote attacker could use...

dnsmasq < 2.83 Multiple Vulnerabilities (DNSPOOQ)

The version of dnsmasq installed on the remote host is prior to 2.83. It is, therefore, affected by multiple vulnerabilities: - Multiple remote buffer overflows in the DNSSEC implementation. CVE-2020-25681, CVE-2020-25682, CVE-2020-25683, CVE-2020-25687 - A UDP DNS cache poisoning vulnerability...

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 address/port to retrieve the exact forwarded query,...

Security Advisory 2021-01-19-1 - dnsmasq multiple vulnerabilities (CVE-2020-25681, CVE-2020-25682, CVE-2020-25683, CVE-2020-25684, CVE-2020-25685, CVE-2020-25686, CVE-2020-25687)

DESCRIPTION Dnsmasq has two sets of vulnerabilities, one set of memory corruption issues handling DNSSEC and a second set of issues validating DNS responses. These vulnerabilities could allow an attacker to corrupt memory on the target device and perform cache poisoning attacks against the target...

DNSpooq vulnerabilities fixed in dnsmasq

The developers of dnsmasq have fixed vulnerabilities in the dnsmasq application. Dnsmasq is widely used open source software for caching and forwarding DNS traffic. Although the DNS functionality is widely supported, dnsmasq is designed specifically for modest networks. Dnsmasq is commonly found,...

CVE-2020-28473

The package bottle from 0 and before 0.12.19 are vulnerable to Web Cache Poisoning by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon ;, they can cause a difference in the interpretation of the request between the proxy running with...

DEBIAN-CVE-2020-28473

The package bottle from 0 and before 0.12.19 are vulnerable to Web Cache Poisoning by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon ;, they can cause a difference in the interpretation of the request between the proxy running with...

CVE-2020-28473

The package bottle from 0 and before 0.12.19 are vulnerable to Web Cache Poisoning by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon ;, they can cause a difference in the interpretation of the request between the proxy running with...

Design/Logic Flaw

The package bottle from 0 and before 0.12.19 are vulnerable to Web Cache Poisoning by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon ;, they can cause a difference in the interpretation of the request between the proxy running with...

PYSEC-2021-129

The package bottle from 0 and before 0.12.19 are vulnerable to Web Cache Poisoning by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon ;, they can cause a difference in the interpretation of the request between the proxy running with...

CVE-2020-28473

The package bottle from 0 and before 0.12.19 are vulnerable to Web Cache Poisoning by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon ;, they can cause a difference in the interpretation of the request between the proxy running with...

PYSEC-2021-129

The package bottle from 0 and before 0.12.19 are vulnerable to Web Cache Poisoning by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon ;, they can cause a difference in the interpretation of the request between the proxy running with...

UBUNTU-CVE-2020-28473

The package bottle from 0 and before 0.12.19 are vulnerable to Web Cache Poisoning by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon ;, they can cause a difference in the interpretation of the request between the proxy running with...

CVE-2020-28473

CVE-2020-28473 affects the bottle Python package (versions before 0.12.19). The underlying issue is parameter cloaking: if an attacker uses semicolon to separate query parameters, the proxy and server may interpret the request differently, causing malicious requests to be cached as safe. This ena...

CVE-2020-28473 Web Cache Poisoning

The package bottle from 0 and before 0.12.19 are vulnerable to Web Cache Poisoning by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon ;, they can cause a difference in the interpretation of the request between the proxy running with...