Debian Security Advisory

DLA-2636-1 pjproject -- LTS security update

Date Reported:
23 Apr 2021
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2021-21375.
More information:

An issue has been found in pjproject, a set of libraries for the PJ Project. Due to bad handling of two consecutive crafted answers to an INVITE, the attacker is able to crash the server resulting in a denial of service.

For Debian 9 stretch, this problem has been fixed in version 2.5.5~dfsg-6+deb9u2.

We recommend that you upgrade your pjproject packages.

For the detailed security status of pjproject 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: