Debian Security Advisory

DLA-2958-1 usbredir -- LTS security update

Date Reported:
21 Mar 2022
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2021-3700.
More information:

A use-after-free vulnerability was found in Usbredirparser, a parser for the usbredir protocol, which could result in denial of service or potentially arbitrary code execution.

For Debian 9 stretch, this problem has been fixed in version 0.7.1-1+deb9u1.

We recommend that you upgrade your usbredir packages.

For the detailed security status of usbredir 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: