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"
Release date
January 07, 2018
Latest revision
January 07, 2018: 1
Severity
normal
Exploitable
remote
Bugzilla entries