View at Official debian advisory, NVD, CVE.org · CVE detail
Freshness: upstream tracker timestamp is available; use API updated time as primary recency signal.
CVE-2021-3404 not yet assigned priority: Debian including 1 source packages (libytnef), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5.
In ytnef 1.9.3, the SwapWord function in lib/ytnef.c allows remote attackers to cause a denial-of-service (and potentially code execution) due to a heap buffer overflow which can be triggered via a crafted file.