A libsndfile security update has been released for Debian GNU/Linux 9 LTS to address two issues.

DLA 3058-1: libsndfile security update

- -------------------------------------------------------------------------
Debian LTS Advisory DLA-3058-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Thorsten Alteholz
June 26, 2022   https://wiki.debian.org/LTS
- -------------------------------------------------------------------------

Package : libsndfile
Version : 1.0.27-3+deb9u3
CVE ID : CVE-2017-12562 CVE-2021-4156

Two issues have been found in libsndfile, a library for reading/writing
audio files.

CVE-2017-12562

Due to a possible heap buffer overflow attack in an attacker could
cause a remote denial of service attack by tricking the function into
outputting a largeamount of data.

CVE-2021-4156

Using a crafted FLAC file, an attacker could trigger an out-of-bounds
read that would most likely cause a crash but could potentially leak
memory information.

For Debian 9 stretch, these problems have been fixed in version
1.0.27-3+deb9u3.

We recommend that you upgrade your libsndfile packages.

For the detailed security status of libsndfile please refer to
its security tracker page at:
  https://security-tracker.debian.org/tracker/libsndfile

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at:   https://wiki.debian.org/LTS