Opened 20 years ago

Closed 19 years ago

#519 closed defect (remind)

Invalid read in mpeg audio decoder

Reported by: i_s_c_y@… Owned by: mans@…
Priority: normal Component: libavcodec
Version: unspecified Severity: normal
Keywords: Cc:
Blocked By: Blocking:
Reproduced by developer: no Analyzed by developer: no

Description

I got this while having a file repeating for a while. By using libduma, I've
been able to see that an invalid read was done.

It most likely leads to a crash.

The problem is when doing: "code = get_vlc2(...);" in mpegaudiodec.c:1653
It's possible to receive a code that is outside of the huffman table. In that
case, an invalid read can be performed.

Attachments (1)

patch_audio​ (663 bytes ) - added by i_s_c_y@… 20 years ago.
Patch

Download all attachments as: .zip

Change History (4)

by i_s_c_y@…, 20 years ago

Attachment: patch_audio​ added

Patch

comment:1 by i_s_c_y@…, 20 years ago

By using this patch, the problem goes away.

comment:2 by mans@…, 20 years ago

Is this still a problem? There have been major changes to the mpeg audio decoder.

comment:3 by compn, 19 years ago

Resolution: → remind
Status: new → closed

closing all ffmpeg bugs
please use ffmpeg roundup tracker for ffmpeg bugs now

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