In Wireshark through 3.2.7, the Facebook Zero Protocol (aka FBZERO) dissector could enter an infinite loop. This was addressed in epan/dissectors/packet-fbzero.c by correcting the implementation of offset advancement.

In Wireshark through 2.6.2, the create_app_running_mutex function in wsutil/file_util.c calls SetSecurityDescriptorDacl to set a NULL DACL, which allows attackers to modify the access control arbitrarily.

The netmonrec_comment_destroy function in wiretap/netmon.c in Wireshark through 2.4.4 performs a free operation on an uninitialized memory address, which allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact.

In Wireshark before 2.2.12, the MRDISC dissector misuses a NULL pointer and crashes. This was addressed in epan/dissectors/packet-mrdisc.c by validating an IPv4 address. This vulnerability is similar to CVE-2017-9343.

The File_read_line function in epan/wslua/wslua_file.c in Wireshark through 2.2.11 does not properly strip '\n' characters, which allows remote attackers to cause a denial of service (buffer underflow and application crash) via a crafted packet that triggers the attempted processing of an empty line.

In Wireshark 2.2.4 and earlier, a crafted or malformed STANAG 4607 capture file will cause an infinite loop and memory exhaustion. If the packet size field in a packet header is null, the offset to read from will not advance, causing continuous attempts to read the same zero length packet. This will quickly exhaust all system memory.

epan/proto.c in Wireshark 1.12.x before 1.12.13 and 2.x before 2.0.5 allows remote attackers to cause a denial of service (OpenFlow dissector large loop) via a crafted packet.

Off-by-one error in epan/dissectors/packet-rlc.c in the RLC dissector in Wireshark 1.12.x before 1.12.13 and 2.x before 2.0.5 allows remote attackers to cause a denial of service (stack-based buffer overflow and application crash) via a crafted packet.

epan/dissectors/packet-ldss.c in the LDSS dissector in Wireshark 1.12.x before 1.12.13 and 2.x before 2.0.5 mishandles conversations, which allows remote attackers to cause a denial of service (application crash) via a crafted packet.

epan/dissectors/packet-rlc.c in the RLC dissector in Wireshark 1.12.x before 1.12.13 and 2.x before 2.0.5 uses an incorrect integer data type, which allows remote attackers to cause a denial of service (large loop) via a crafted packet.

epan/dissectors/packet-mmse.c in the MMSE dissector in Wireshark 1.12.x before 1.12.13 allows remote attackers to cause a denial of service (infinite loop) via a crafted packet.

epan/dissectors/packet-wsp.c in the WSP dissector in Wireshark 1.12.x before 1.12.13 and 2.x before 2.0.5 allows remote attackers to cause a denial of service (infinite loop) via a crafted packet.

epan/dissectors/packet-packetbb.c in the PacketBB dissector in Wireshark 1.12.x before 1.12.13 and 2.x before 2.0.5 allows remote attackers to cause a denial of service (divide-by-zero error and application crash) via a crafted packet.

epan/dissectors/packet-ncp2222.inc in the NDS dissector in Wireshark 1.12.x before 1.12.13 does not properly maintain a ptvc data structure, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted packet.