Medium: libsndfile

Issue Overview:

An out-of-bounds read flaw was found in libsndfile’s FLAC codec functionality. An attacker who is able to submit a specially crafted file (via tricking a user to open or otherwise) to an application linked with libsndfile and using the FLAC codec, could trigger an out-of-bounds read that would most likely cause a crash but could potentially leak memory information that could be used in further exploitation of other flaws. (CVE-2021-4156)

Affected Packages:

libsndfile

Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.

Issue Correction:
Run yum update libsndfile to update your system.

New Packages:

aarch64:  
    libsndfile-1.0.25-12.amzn2.2.aarch64  
    libsndfile-devel-1.0.25-12.amzn2.2.aarch64  
    libsndfile-utils-1.0.25-12.amzn2.2.aarch64  
    libsndfile-debuginfo-1.0.25-12.amzn2.2.aarch64  
  
i686:  
    libsndfile-1.0.25-12.amzn2.2.i686  
    libsndfile-devel-1.0.25-12.amzn2.2.i686  
    libsndfile-utils-1.0.25-12.amzn2.2.i686  
    libsndfile-debuginfo-1.0.25-12.amzn2.2.i686  
  
src:  
    libsndfile-1.0.25-12.amzn2.2.src  
  
x86_64:  
    libsndfile-1.0.25-12.amzn2.2.x86_64  
    libsndfile-devel-1.0.25-12.amzn2.2.x86_64  
    libsndfile-utils-1.0.25-12.amzn2.2.x86_64  
    libsndfile-debuginfo-1.0.25-12.amzn2.2.x86_64  

Additional References

Red Hat: CVE-2021-4156

Mitre: CVE-2021-4156