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bdu:2026-14790

EUVD-2026-367826

fkie_cve-2026-73324

Certain VLC media player builds in versions 3.0.0 through 3.0.23 contain a memory-safety vulnerability reachable when processing media from an attacker-controlled network source. Exploitation requires user interaction and may disclose a limited, layout-dependent amount of VLC process memory. Exposure depends on build configuration.

GHSA-2hhc-8w99-9jvg

VLC media player copies an RTSP response line into a fixed buffer without guaranteeing termination and then treats that buffer as a C string. RtspReadLine in modules/access/rtsp/access.c calls strncpy with the full buffer length, which writes no terminator when the source line is at least as long as the destination, and rtsp_get in modules/access/rtsp/rtsp.c allocates that buffer as BUF_SIZE bytes and passes it to strdup. When a server returns a line of 4096 bytes or more, strdup measures its length past the end of the allocation and copies adjacent heap bytes until an incidental zero byte. Because the affected line is the Session header, the disclosed bytes are retained as the session identifier and sent back to the server on every subsequent request, so the operator of a hostile server reads heap memory from the client rather than inferring it. The attacker controls the line length and therefore how far the read runs. A single playlist entry naming a realrtsp URL is sufficient. The module is a build-time option, disabled in some distribution packages and enabled in the official VideoLAN builds.

UBUNTU-CVE-2026-73324

Affected: Ubuntu:Pro:16.04:LTS: vlc, Ubuntu:Pro:18.04:LTS: vlc, Ubuntu:Pro:20.04:LTS: vlc, Ubuntu:Pro:22.04:LTS: vlc, Ubuntu:Pro:24.04:LTS: vlc, Ubuntu:26.04:LTS: vlc

WID-SEC-W-2026-3304 — VLC: Mehrere Schwachstellen

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in VLC ausnutzen, um beliebigen Programmcode auszuführen oder vertrauliche Informationen offenzulegen.