Ori Hollander reported that missing header name length checks in the htx_add_header() and htx_add_trailer() functions in HAProxy, a fast and reliable load balancing reverse proxy, could result in request smuggling attacks or response splitting attacks.
Etienne Stalmans discovered that unsquashfs in squashfs-tools, the tools to create and extract Squashfs filesystems, does not validate filenames for traversal outside of the destination directory. An attacker can take advantage of this flaw for writing to arbitrary files to the filesystem
Multiple security issues were discovered in the GPAC multimedia framework which could result in denial of service or the execution of arbitrary code. The oldstable distribution (buster) is not affected.
Michael Catanzaro reported a problem in Grilo, a framework for discovering and browsing media. TLS certificate verification is not enabled on the SoupSessionAsync objects created by Grilo, leaving users vulnerable to network MITM attacks.
Henry de Valence reported a flaw in the signature verification code in Tor, a connection-based low-latency anonymous communication system. A remote attacker can take advantage of this flaw to cause an assertion failure, resulting in denial of service.