umdns in OpenWrt through 18.06.8 and 19.07.2 has potential for out-of-bounds reads of heap data and possible buffer overflow.. umdns is the OpenWrt Multicast DNS Daemon.. We have not been made aware of any exploits at this time, however users are advised to update the umdns package to 2020-04-25-cdac0460-1 or later.

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    Sep 28, 2019 · A heap-based buffer overflow has been identified in the Thunderbird email client. The issue is present in the libical implementation, which was forked from upstream libical version 0.47. The issue can be triggered remotely, when an attacker sends a specially crafted calendar attachment and does not require user interaction.

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    Mar 16, 2016 · Stack overflows are the most common, well-known of all buffer overflow attacks. Heap attacks. The heap is a much larger chunk of memory used to store more complex data such as images, or text, that relates to the program. The premise here is similar to the previous, but is trickier for the attacker to implement because the heap isn’t directly ...

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