Security update for dropbear SUSE Patch security@suse.de SUSE Security Team openSUSE-SU-2016:1891-1 Final 1 1 2016-07-27T13:30:19Z current 2016-07-27T13:30:19Z 2016-07-27T13:30:19Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for dropbear This update for dropbear fixes four security issues (bnc#990363): - A format string injection vulnerability allowed remotes attacker to run arbitrary code as root if specific usernames including '%' symbols could be created on the target system. If a dbclient user can control usernames or host arguments, or untrusted input is processed, potentially arbitrary code could have been executed as the dbclient user. - When importing malicious OpenSSH key files via dropbearconvert, arbitrary code could have been executed as the local dropbearconvert user - If particular -m or -c arguments were provided, as used in scripts, dbclient could have executed arbitrary code - dbclient or dropbear server could have exposed process memory to the running user if compiled with DEBUG_TRACE and running with -v Dropbear was updated to the upstream 2016.74 release, including fixes for the following upstream issues: - Port forwarding failure when connecting to domains that have both IPv4 and IPv6 addresses - 100% CPU use while waiting for rekey to complete - Fix crash when fallback initshells() is used scp failing when the local user doesn't exist The following upstream improvements are included: - Support syslog in dbclient, option -o usesyslog=yes - Kill a proxycommand when dbclient exits - Option to exit when a TCP forward fails - Allow specifying commands eg 'dropbearmulti dbclient ...' instead of symlinks The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://lists.opensuse.org/opensuse-security-announce/2016-07/msg00024.html E-Mail link for openSUSE-SU-2016:1891-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings openSUSE Leap 42.1 dropbear-2016.74-11.1 dropbear-2016.74-11.1 as a component of openSUSE Leap 42.1