A flaw has been discovered in OpenSSH which could allow a remote attacker to create zero-length files.
|Package||net-misc/openssh on all architectures|
|Affected versions||< 7.5_p1-r3|
|Unaffected versions||>= 7.5_p1-r3|
OpenSSH is a complete SSH protocol implementation that includes SFTP client and server support.
The process_open function in sftp-server.c in OpenSSH did not properly prevent write operations in readonly mode.
A remote attacker could cause the creation of zero-length files.
There is no known workaround at this time.
All OpenSSH users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-misc/openssh-7.5_p1-r3"
January 07, 2018
January 07, 2018: 1