vulnerability

Alpine Linux: CVE-2021-3404: Improper Restriction of Operations within the Bounds of a Memory Buffer

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
Mar 4, 2021
Added
Aug 22, 2024
Modified
Dec 5, 2025

Description

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.

Solution

alpine-linux-upgrade-ytnef
Title
NEW

Explore Exposure Command

Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.