Bug 31673 - sox regression fix for CVE-2021-33844 patch
Summary: sox regression fix for CVE-2021-33844 patch
Alias: None
Product: Mageia
Classification: Unclassified
Component: RPM Packages (show other bugs)
Version: 8
Hardware: All Linux
Priority: Normal normal
Target Milestone: ---
Assignee: QA Team
QA Contact:
Whiteboard: MGA8-64-OK
Keywords: advisory, validated_update
Depends on:
Blocks: 31753
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Reported: 2023-03-14 16:13 CET by David Walser
Modified: 2023-04-04 21:19 CEST (History)
5 users (show)

See Also:
Source RPM: sox-14.4.3-0.git20200117.3.1.mga8.src.rpm
Status comment:


Description David Walser 2023-03-14 16:13:21 CET
In Bug 30291, we fixed a CVE with a buggy patch from Debian.  A fixed version of the patch has been posted here:
David Walser 2023-03-14 16:13:29 CET

Whiteboard: (none) => MGA8TOO

Comment 1 David GEIGER 2023-03-14 17:44:49 CET
Done for both mga8 and Cauldron!
Comment 2 David Walser 2023-03-14 18:41:00 CET

The sox package has been updated with a corrected patch for CVE-2021-33844
which fixes a regression that made sox unable to decode WAV GSM files.


Updated packages in core/updates_testing:

from sox-14.4.3-0.git20200117.3.2.mga8.src.rpm

CC: (none) => geiger.david68210
Whiteboard: MGA8TOO => (none)
Version: Cauldron => 8
Assignee: geiger.david68210 => qa-bugs

Comment 3 Len Lawrence 2023-03-15 17:10:33 CET
mageia8, x86_64

The question here for testers is how do we identify WAV GSM files?
The first two tried were Signed and Unsigned PCM - seems to be the order of the day.  A bit of research reveals that GSM is a lossy conversion from a higher sampling rate to 8000 Hz, more useful for speech.
$ play Semiramis.wav
 File Size: 82.4M     Bit Rate: 1.41M
  Encoding: Signed PCM    
  Channels: 2 @ 16-bit   
Samplerate: 44100Hz      

$ sox Semiramis.wav semiramis.gsm
sox WARN formats: gsm can't encode at 44100Hz; using 8000Hz
$ play semiramis.gsm
 File Size: 1.54M     
  Encoding: GSM           
  Channels: 1 @ 16-bit   
Samplerate: 8000Hz       

The GSM file played OK but the original sound was extremely degraded.

Updated the packages and ran that test again.
$ play BadMoonRising.wav
 File Size: 12.2M     Bit Rate: 706k
  Encoding: Signed PCM    
  Channels: 1 @ 32-bit   
Samplerate: 22050Hz      

$ sox BadMoonRising.wav badmoonrising.gsm
sox WARN formats: gsm can't encode at 22050Hz; using 8000Hz
sox WARN rate: rate clipped 1 samples; decrease volume?
sox WARN dither: dither clipped 1 samples; decrease volume?
$ play badmoonrising.gsm 
 File Size: 229k      
  Encoding: GSM           
  Channels: 1 @ 16-bit   
Samplerate: 8000Hz       

The sound was slightly degraded maybe, hardly noticeable.
Tried the original file and found the conversion badly degraded, as before.
Other conversions play well with sox.

$ sox OrganConcerto_7.4_D_minor.wav handel.flac
$ play handel.flac
 File Size: 68.9M     Bit Rate: 672k
  Encoding: FLAC          Info: Processed by SoX
  Channels: 2 @ 16-bit   
Samplerate: 44100Hz      

$ play MilleDucas.mp3
 File Size: 1.42M     Bit Rate: 128k
  Encoding: MPEG audio    
  Channels: 2 @ 16-bit   
Samplerate: 44100Hz      
$ sox PourQuoy.mp3 pourquoy.ogg
$ play pourquoy.ogg
 File Size: 1.62M     Bit Rate: 106k
  Encoding: Vorbis        Info: Processed by SoX
  Channels: 2 @ 16-bit   
Samplerate: 44100Hz      

All good.

CC: (none) => tarazed25
Whiteboard: (none) => MGA8-64-OK

Comment 4 Len Lawrence 2023-03-15 17:18:04 CET
Addendum to comment 3.
The man page for sox  gives numerous examples of use for combining tracks, recording and sysnthesizing sounds on the fly, such as:
$ play -n -c1 synth sin %-12 sin %-9 sin %-5 sin %-2 fade h 0.1 1 0.1
That works too.
Comment 5 Thomas Andrews 2023-03-15 19:02:18 CET
Validating. Advisory in comment 2.

CC: (none) => andrewsfarm, sysadmin-bugs
Keywords: (none) => validated_update

Dave Hodgins 2023-03-16 04:32:42 CET

Keywords: (none) => advisory
CC: (none) => davidwhodgins

Comment 6 Mageia Robot 2023-03-18 23:17:59 CET
An update for this issue has been pushed to the Mageia Updates repository.


Resolution: (none) => FIXED

Comment 7 David Walser 2023-03-24 13:42:43 CET
Ubuntu has issued an advisory for this on March 20:
David Walser 2023-04-04 21:19:14 CEST

Blocks: (none) => 31753

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