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AUSCERT External Security Bulletin Redistribution
ESB-2021.2570
libsndfile vulnerability
30 July 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: libsndfile
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Denial of Service -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2021-3246
Reference: ESB-2021.2546
Original Bulletin:
https://ubuntu.com/security/notices/USN-5025-1
https://ubuntu.com/security/notices/USN-5025-2
Comment: This bulletin contains two (2) Ubuntu security advisories.
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USN-5025-1: libsndfile vulnerability
29 July 2021
libsndfile could be made to crash or run programs as your login if it
opened a specially crafted file.
Releases
o Ubuntu 21.04
o Ubuntu 20.04 LTS
o Ubuntu 18.04 LTS
Packages
o libsndfile - Library for reading/writing audio files
Details
It was discovered that libsndfile incorrectly handled certain malformed
files. A remote attacker could use this issue to cause libsndfile to crash,
resulting in a denial of service, or possibly execute arbitrary code.
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 21.04
o libsndfile1 - 1.0.31-1ubuntu1.1
o sndfile-programs - 1.0.31-1ubuntu1.1
Ubuntu 20.04
o libsndfile1 - 1.0.28-7ubuntu0.1
o sndfile-programs - 1.0.28-7ubuntu0.1
Ubuntu 18.04
o libsndfile1 - 1.0.28-4ubuntu0.18.04.2
o sndfile-programs - 1.0.28-4ubuntu0.18.04.2
After a standard system update you need to restart your session to make
all the necessary changes.
References
o CVE-2021-3246
- --------------------------------------------------------------------------------
USN-5025-2: libsndfile vulnerability
29 July 2021
libsndfile could be made to crash or run programs as your login if it
opened a specially crafted file.
Releases
o Ubuntu 16.04 ESM
o Ubuntu 14.04 ESM
Packages
o libsndfile - Library for reading/writing audio files
Details
USN-5025-1 fixed a vulnerability in libsndfile. This update provides
the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.
Original advisory details:
It was discovered that libsndfile incorrectly handled certain malformed
files. A remote attacker could use this issue to cause libsndfile to crash,
resulting in a denial of service, or possibly execute arbitrary code.
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 16.04
o libsndfile1 - 1.0.25-10ubuntu0.16.04.3+esm1
Available with UA Infra or UA Desktop
o sndfile-programs - 1.0.25-10ubuntu0.16.04.3+esm1
Available with UA Infra or UA Desktop
Ubuntu 14.04
o libsndfile1 - 1.0.25-7ubuntu2.2+esm2
Available with UA Infra or UA Desktop
o sndfile-programs - 1.0.25-7ubuntu2.2+esm2
Available with UA Infra or UA Desktop
After a standard system update you need to restart your session to make
all the necessary changes.
References
o CVE-2021-3246
Related notices
o USN-5025-1 : sndfile-programs, libsndfile1, libsndfile, libsndfile1-dev
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