Debian Security Advisory

DSA-4965-1 libssh -- security update

Date Reported:
31 Aug 2021
Affected Packages:
Security database references:
In the Debian bugtracking system: Bug 993046.
In Mitre's CVE dictionary: CVE-2021-3634.
More information:

It was discovered that a buffer overflow in rekeying in libssh could result in denial of service or potentially the execution of arbitrary code.

The oldstable distribution (buster) is not affected.

For the stable distribution (bullseye), this problem has been fixed in version 0.9.5-1+deb11u1.

We recommend that you upgrade your libssh packages.

For the detailed security status of libssh please refer to its security tracker page at: