Ubuntu Security Notice 4565-1 - It was discovered that OpenConnect has a buffer overflow when a malicious server uses HTTP chunked encoding with crafted chunk sizes. An attacker could use it to provoke a denial of service.
a9ca830580bdfd9d995f779e6665be17210145c3a77a056c8c9bcf70d3a8f710
Debian Linux Security Advisory 4607-1 - Lukas Kupczyk reported a vulnerability in the handling of chunked HTTP in openconnect, an open client for Cisco AnyConnect, Pulse and GlobalProtect VPN. A malicious HTTP server (after having accepted its identity certificate), can provide bogus chunk lengths for chunked HTTP encoding and cause a heap-based buffer overflow.
4f4e3fff7bd0509ce1ac161fec38bfda002f9e838f665c2090308e3d7194c086