A libyang security update has been released for Debian GNU/Linux 10 LTS to address multiple flaws.

[SECURITY] [DLA 3572-1] libyang security update

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Debian LTS Advisory DLA-3572-1 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Markus Koschany
September 19, 2023 https://wiki.debian.org/LTS
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Package : libyang
Version : 0.16.105+really1.0-0+deb10u1
CVE ID : CVE-2019-20391 CVE-2019-20392 CVE-2019-20393 CVE-2019-20394
CVE-2019-20395 CVE-2019-20396 CVE-2019-20397 CVE-2019-20398

Multiple flaws were found in libyang, a parser toolkit for IETF YANG data
modeling. Double frees, invalid memory access and Null pointer dereferences
may cause a denial of service or potentially code execution.

For Debian 10 buster, these problems have been fixed in version
0.16.105+really1.0-0+deb10u1.

We recommend that you upgrade your libyang packages.

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

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