Multiple vulnerabilities have been found in Dnsmasq, one of which includes remote code execution.
| Package | Arch | Vulnerable | Unaffected |
|---|---|---|---|
| net-dns/dnsmasq | * | < 2.92_p2 | >= 2.92_p2 |
Dnsmasq is a lightweight and easily-configurable DNS forwarder and DHCP server.
Multiple vulnerabilities have been discovered in Dnsmasq. Please review the CVE identifiers referenced below for details.
Please review the referenced CVE identifiers for details.
There is no known workaround at this time.
All Dnsmasq users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-dns/dnsmasq-2.92_p2"
Multiple vulnerabilities have been discovered in Dnsmasq, the worst of which could lead to a denial of service.
| Package | Arch | Vulnerable | Unaffected |
|---|---|---|---|
| net-dns/dnsmasq | * | < 2.90 | >= 2.90 |
Dnsmasq is a lightweight and easily-configurable DNS forwarder and DHCP server.
Multiple vulnerabilities have been discovered in Dnsmasq. Please review the CVE identifiers referenced below for details.
Please review the referenced CVE identifiers for details.
There is no known workaround at this time.
All Dnsmasq users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-dns/dnsmasq-2.90"
Use of insufficient randomness in Dnsmasq might lead to DNS Cache Poisoning.
| Package | Arch | Vulnerable | Unaffected |
|---|---|---|---|
| net-dns/dnsmasq | * | < 2.85 | >= 2.85 |
Dnsmasq is a lightweight and easily-configurable DNS forwarder and DHCP server.
It was discovered that Dnsmasq, when configured with --server=<address>@ or similar (e.g. through dbus), configured a fixed UDP port for all outgoing queries to the specified upstream DNS server.
An attacker, by sending malicious crafted DNS responses, could perform a DNS Cache Poisoning attack.
There is no known workaround at this time.
All Dnsmasq users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-dns/dnsmasq-2.85"
Multiple vulnerabilities have been found in Dnsmasq, the worst of which may allow remote attackers to execute arbitrary code.
| Package | Arch | Vulnerable | Unaffected |
|---|---|---|---|
| net-dns/dnsmasq | * | < 2.83 | >= 2.83 |
Dnsmasq is a lightweight and easily-configurable DNS forwarder and DHCP server.
Multiple vulnerabilities have been discovered in Dnsmasq. Please review the references below for details.
An attacker, by sending specially crafted DNS replies, could possibly execute arbitrary code with the privileges of the process, perform a cache poisoning attack or cause a Denial of Service condition.
There is no known workaround at this time.
All Dnsmasq users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-dns/dnsmasq-2.83"
Multiple vulnerabilities have been found in Dnsmasq, the worst of which may allow remote attackers to execute arbitrary code.
| Package | Arch | Vulnerable | Unaffected |
|---|---|---|---|
| net-dns/dnsmasq | * | < 2.78 | >= 2.78 |
Dnsmasq is a lightweight and easily-configurable DNS forwarder and DHCP server.
Multiple vulnerabilities have been discovered in Dnsmasq. Please review the references below for details.
A remote attacker could execute arbitrary code or cause a Denial of Service condition via crafted DNS, IPv6, or DHCPv6 packets.
There is no known workaround at this time.
All Dnsmasq users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-dns/dnsmasq-2.78"
A vulnerability in Dnsmasq can lead to a Denial of Service condition.
| Package | Arch | Vulnerable | Unaffected |
|---|---|---|---|
| net-dns/dnsmasq | * | < 2.72-r2 | >= 2.72-r2 |
Dnsmasq is a lightweight, easy to configure DNS forwarder and DHCP server.
An out-of-bounds read vulnerability has been found in the tcp_request function in Dnsmasq.
A remote attacker could send a specially crafted DNS request, possibly resulting in a Denial of Service condition.
There is no known workaround at this time.
All Dnsmasq users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-dns/dnsmasq-2.72-r2"
A vulnerability in Dnsmasq can lead to a Denial of Service condition.
| Package | Arch | Vulnerable | Unaffected |
|---|---|---|---|
| net-dns/dnsmasq | * | < 2.66 | >= 2.66 |
Dnsmasq is a lightweight, easy to configure DNS forwarder and DHCP server.
When used with certain libvirt configurations Dnsmasq replies to queries from prohibited interfaces.
A remote attackers can cause a Denial of Service via spoofed TCP based DNS queries.
There is no known workaround at this time.
All Dnsmasq users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-dns/dnsmasq-2.66"
Multiple vulnerabilities in Dnsmasq might result in the remote execution of arbitrary code, or a Denial of Service.
| Package | Arch | Vulnerable | Unaffected |
|---|---|---|---|
| net-dns/dnsmasq | * | < 2.5.0 | >= 2.5.0 |
Dnsmasq is a lightweight, easy to configure DNS forwarder and DHCP server. It includes support for Trivial FTP (TFTP).
Multiple vulnerabilities have been reported in the TFTP functionality included in Dnsmasq:
A remote attacker in the local network could exploit these vulnerabilities by sending specially crafted TFTP requests to a machine running Dnsmasq, possibly resulting in the remote execution of arbitrary code with the privileges of the user running the daemon, or a Denial of Service. NOTE: The TFTP server is not enabled by default.
You can disable the TFTP server either at buildtime by not enabling the "tftp" USE flag, or at runtime. Make sure "--enable-tftp" is not set in the DNSMASQ_OPTS variable in the /etc/conf.d/dnsmasq file and "enable-tftp" is not set in /etc/dnsmasq.conf, either of which would enable TFTP support if it is compiled in.
All Dnsmasq users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-dns/dnsmasq-2.5.0"
Two vulnerabilities in dnsmasq might allow for a Denial of Service or spoofing of DNS replies.
| Package | Arch | Vulnerable | Unaffected |
|---|---|---|---|
| net-dns/dnsmasq | * | < 2.45 | >= 2.45 |
Dnsmasq is a lightweight and easily-configurable DNS forwarder and DHCP server.
A remote attacker could send spoofed DNS response traffic to dnsmasq, possibly involving generating queries via multiple vectors, and spoof DNS replies, which could e.g. lead to the redirection of web or mail traffic to malicious sites. Furthermore, an attacker could generate invalid DHCP traffic and cause a Denial of Service.
There is no known workaround at this time.
All dnsmasq users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-dns/dnsmasq-2.45"
Dnsmasq is vulnerable to DNS cache poisoning attacks and a potential Denial of Service from the local network.
| Package | Arch | Vulnerable | Unaffected |
|---|---|---|---|
| net-dns/dnsmasq | * | < 2.22 | >= 2.22 |
Dnsmasq is a lightweight and easily-configurable DNS forwarder and DHCP server.
Dnsmasq does not properly detect that DNS replies received do not correspond to any DNS query that was sent. Rob Holland of the Gentoo Linux Security Audit team also discovered two off-by-one buffer overflows that could crash DHCP lease files parsing.
A remote attacker could send malicious answers to insert arbitrary DNS data into the Dnsmasq cache. These attacks would in turn help an attacker to perform man-in-the-middle and site impersonation attacks. The buffer overflows might allow an attacker on the local network to crash Dnsmasq upon restart.
There is no known workaround at this time.
All Dnsmasq users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-dns/dnsmasq-2.22"