ASA-2019-00403 – FreeBSD: iconv buffer overflow

The iconv(3) API converts text data from one character encoding to another and is available as part of the standard C library (libc). With certain inputs, iconv may write beyond the end of the output buffer. Depending on the way in which iconv is used, an attacker may be able to create a denial of service, provoke incorrect program behavior, or induce a remote code execution. iconv is a libc library function and the nature of possible attacks will depend on the way in which iconv is used by applications or daemons.

ASA-2019-00330 – Intel NUC: Buffer overflow in system firmware

Buffer overflow in system firmware for Intel(R) NUC Kit may allow a privileged user to potentially enable escalation of privilege, denial of service and/or information disclosure via local access.

ASA-2019-00306 – curl: TFTP receive buffer overflow

libcurl contains a heap buffer overflow in the function (`tftp_receive_packet()`) that recevives data from a TFTP server. It calls `recvfrom()` with the default size for the buffer rather than with the size that was used to allocate it. Thus, the content that might overwrite the heap memory is entirely controlled by the server. The flaw exists if the user selects to use a "blksize" of 504 or smaller (default is 512). The smaller size that is used, the larger the possible overflow becomes. Users chosing a smaller size than default should be rare as the primary use case for changing the size is to make it larger.

ASA-2019-00284 – wget: Buffer overflow vulnerability in the handling of Internationalized Resource Identifiers (IRI)

discovered a buffer overflow vulnerability in the handling of Internationalized Resource Identifiers (IRI) in wget, a network utility to retrieve files from the web, which could result in the execution of arbitrary code or denial of service when recursively downloading from an untrusted server.