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Thunderbird libical icalparser.c Heap Overflow

Thunderbird libical icalparser.c Heap Overflow
Posted Jun 14, 2019
Authored by Luis Merino

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 an specially crafted calendar attachment and does not require user interaction. It might be used by a remote attacker to crash or gain remote code execution in the client system. Proof of concept included.

tags | exploit, remote, overflow, code execution
advisories | CVE-2019-11703
SHA-256 | fbc427324f7bbbd52b32d86534519facca35022c50ab621232e63a61a9d5146c
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