We define some constants in dnsmasq.h, which have an influence on
stdio.h. So do not include stdio.h before dnsmasq.h.
Signed-off-by: Petr Menšík <pemensik@redhat.com>
Further fix to 0549c73b7ea6b22a3c49beb4d432f185a81efcbc
Handles case when RR name is not a pointer to the question,
only occurs for some auth-mode replies, therefore not
detected by fuzzing (?)
Signed-off-by: Petr Menšík <pemensik@redhat.com>
creation.
Fix out-of-memory Dos vulnerability. An attacker which can
send malicious DNS queries to dnsmasq can trigger memory
allocations in the add_pseudoheader function
The allocated memory is never freed which leads to a DoS
through memory exhaustion. dnsmasq is vulnerable only
if one of the following option is specified:
--add-mac, --add-cpe-id or --add-subnet.
Signed-off-by: Petr Menšík <pemensik@redhat.com>
Fix DoS in DNS. Invalid boundary checks in the
add_pseudoheader function allows a memcpy call with negative
size An attacker which can send malicious DNS queries
to dnsmasq can trigger a DoS remotely.
dnsmasq is vulnerable only if one of the following option is
specified: --add-mac, --add-cpe-id or --add-subnet.
Signed-off-by: Petr Menšík <pemensik@redhat.com>
Fix information leak in DHCPv6. A crafted DHCPv6 packet can
cause dnsmasq to forward memory from outside the packet
buffer to a DHCPv6 server when acting as a relay.
Signed-off-by: Petr Menšík <pemensik@redhat.com>
Fix stack overflow in DHCPv6 code. An attacker who can send
a DHCPv6 request to dnsmasq can overflow the stack frame and
crash or control dnsmasq.
Signed-off-by: Petr Menšík <pemensik@redhat.com>
Fix heap overflow in IPv6 router advertisement code.
This is a potentially serious security hole, as a
crafted RA request can overflow a buffer and crash or
control dnsmasq. Attacker must be on the local network.
Signed-off-by: Petr Menšík <pemensik@redhat.com>
Fix heap overflow in DNS code. This is a potentially serious
security hole. It allows an attacker who can make DNS
requests to dnsmasq, and who controls the contents of
a domain, which is thereby queried, to overflow
(by 2 bytes) a heap buffer and either crash, or
even take control of, dnsmasq.
Signed-off-by: Petr Menšík <pemensik@redhat.com>
Petr Menšík
Fedora Release Engineering
Pavel Šimerda
Dennis Gilmore
Tomas Hozza
Pavel Šimerda
Nils Philippsen
Peter Robinson