Multiple vulnerabilities have been discovered in Wireshark, a network protocol analyzer which could result in denial of service or the execution of arbitrary code.
For the oldstable distribution (buster), CVE-2021-39925 has been fixed in in version 2.6.20-0+deb10u2.
For the stable distribution (bullseye), these problems have been fixed in version 3.4.10-0+deb11u1.
We recommend that you upgrade your wireshark packages.
Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/