Security Information / 2021 / Security Information -- DSA-4942-1 systemd

Debian Security Advisory

DSA-4942-1 systemd -- security update

Date Reported:

20 Jul 2021

Affected Packages:

systemd

Vulnerable:

Yes

Security database references:

In Mitre's CVE dictionary: CVE-2021-33910.

More information:

The Qualys Research Labs discovered that an attacker-controlled allocation using the alloca() function could result in memory corruption, allowing to crash systemd and hence the entire operating system.

Details can be found in the Qualys advisory at https://www.qualys.com/2021/07/20/cve-2021-33910/denial-of-service-systemd.txt

For the stable distribution (buster), this problem has been fixed in version 241-7~deb10u8.

We recommend that you upgrade your systemd packages.

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