Debian Security Advisory

DLA-3058-1 libsndfile -- LTS security update

Date Reported:
28 Jun 2022
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2017-12562, CVE-2021-4156.
More information:

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:

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