OPENSUSE-SU-2021:0124-1 Security update for dnsmasq

This update for dnsmasq fixes the following issues: - bsc1177077: Fixed DNSpooq vulnerabilities - CVE-2020-25684, CVE-2020-25685, CVE-2020-25686: Fixed multiple Cache Poisoning attacks. - CVE-2020-25681, CVE-2020-25682, CVE-2020-25683, CVE-2020-25687: Fixed multiple potential Heap-based overflows...

Security update for dnsmasq (important)

openSUSE Security Update: Security update for dnsmasq Announcement ID: openSUSE-SU-2021:0129-1 Rating: important References: 1176076 1177077 Cross-References: CVE-2020-25681 CVE-2020-25682 CVE-2020-25683 CVE-2020-25684 CVE-2020-25685 CVE-2020-25686 CVE-2020-25687 Affected Products: openSUSE Leap...

SUSE SLES15 Security Update : dnsmasq (SUSE-SU-2021:0162-1)

This update for dnsmasq fixes the following issues : bsc1177077: Fixed DNSpooq vulnerabilities CVE-2020-25684, CVE-2020-25685, CVE-2020-25686: Fixed multiple Cache Poisoning attacks. CVE-2020-25681, CVE-2020-25682, CVE-2020-25683, CVE-2020-25687: Fixed multiple potential Heap-based overflows when...

EulerOS 2.0 SP3 : squid (EulerOS-SA-2021-1123)

According to the versions of the squid packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - An issue was discovered in http/ContentLengthInterpreter.cc in Squid before 4.12 and 5.x before 5.0.3. A Request Smuggling and Poisoning attack c...

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...

Security update for dnsmasq (important)

openSUSE Security Update: Security update for dnsmasq Announcement ID: openSUSE-SU-2021:0124-1 Rating: important References: 1176076 1177077 Cross-References: CVE-2020-25681 CVE-2020-25682 CVE-2020-25683 CVE-2020-25684 CVE-2020-25685 CVE-2020-25686 CVE-2020-25687 Affected Products: openSUSE Leap...

CVE-2020-25685

CVE-2020-25685 affects dnsmasq up to version 2.83. The issue arises from how forward.c:reply_query() matches replies to forwarded queries: it uses a weak hash of the query name, allowing an off-path attacker to forge replies by exploiting hash collisions. This vulnerability enables DNS cache pois...

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 安全漏洞

Dnsmasq is a lightweight DNS forwarding and DHCP, TFTP server written in C. It can be used as a server to forward DNS, DHCP, and TFTP. A security vulnerability exists in Dnsmasq prior to version 2.83, which can be exploited by attackers to perform DNS cache poisoning attacks...

SUSE SLES12 Security Update : dnsmasq (SUSE-SU-2021:0166-1)

This update for dnsmasq fixes the following issues : bsc1177077: Fixed DNSpooq vulnerabilities CVE-2020-25684, CVE-2020-25685, CVE-2020-25686: Fixed multiple Cache Poisoning attacks. CVE-2020-25681, CVE-2020-25682, CVE-2020-25683, CVE-2020-25687: Fixed multiple potential Heap-based overflows when...

SUSE SLED15 / SLES15 Security Update : dnsmasq (SUSE-SU-2021:0163-1)

This update for dnsmasq fixes the following issues : bsc1177077: Fixed DNSpooq vulnerabilities CVE-2020-25684, CVE-2020-25685, CVE-2020-25686: Fixed multiple Cache Poisoning attacks. CVE-2020-25681, CVE-2020-25682, CVE-2020-25683, CVE-2020-25687: Fixed multiple potential Heap-based overflows when...

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...

DNSpooq Flaws Allow DNS Hijacking of Millions of Devices

Researchers have uncovered a set of flaws in dnsmasq, popular open-source software used for caching Domain Name System DNS responses for home and commercial routers and servers. The set of seven flaws are comprised of buffer overflow issues and flaws allowing for DNS cache-poisoning attacks also...

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 address/port 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 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, substantially...

dnsmasq: loose address/port 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 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, substantially...

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: loose address/port 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 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, substantially...

CVE-2020-25684

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, substantially...