Debian Security Advisory

DLA-2953-1 openssl1.0 -- LTS security update

Date Reported:
17 Mar 2022
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2022-0778.
More information:

Tavis Ormandy discovered that the BN_mod_sqrt() function of OpenSSL could be tricked into an infinite loop. This could result in denial of service via malformed certificates.

For Debian 9 stretch, this problem has been fixed in version 1.0.2u-1~deb9u7.

We recommend that you upgrade your openssl1.0 packages.

For the detailed security status of openssl1.0 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: