------------------------------------------------------------------------- Debian LTS Advisory DLA-2751-1 debian-lts@lists.debian.org https://www.debian.org/lts/security/ Christoph Berg August 31, 2021 https://wiki.debian.org/LTS ------------------------------------------------------------------------- Package : postgresql-9.6 Version : 9.6.23-0+deb9u1 CVE ID : CVE-2021-3449 PostgreSQL 9.6.23 fixes this security issue: Disallow SSL renegotiation more completely (Michael Paquier) SSL renegotiation has been disabled for some time, but the server would still cooperate with a client-initiated renegotiation request. A maliciously crafted renegotiation request could result in a server crash (see OpenSSL issue CVE-2021-3449). Disable the feature altogether on OpenSSL versions that permit doing so, which are 1.1.0h and newer. For Debian 9 stretch, this problem has been fixed in version 9.6.23-0+deb9u1. We recommend that you upgrade your postgresql-9.6 packages. For the detailed security status of postgresql-9.6 please refer to its security tracker page at: https://security-tracker.debian.org/tracker/postgresql-9.6 Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS
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