- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 202003-27 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: libssh: Arbitrary command execution Date: March 15, 2020 Bugs: #701598 ID: 202003-27 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== A vulnerability in libssh could allow a remote attacker to execute arbitrary commands. Background ========== libssh is a multiplatform C library implementing the SSHv2 protocol on client and server side. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-libs/libssh < 0.9.3 >= 0.9.3 Description =========== It was discovered that libssh incorrectly handled certain scp commands. Impact ====== A remote attacker could trick a victim into using a specially crafted scp command, possibly resulting in the execution of arbitrary commands on the server. Workaround ========== There is no known workaround at this time. Resolution ========== All libssh users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-libs/libssh-0.9.3" References ========== [ 1 ] CVE-2019-14889 https://nvd.nist.gov/vuln/detail/CVE-2019-14889 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/202003-27 Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org. License ======= Copyright 2020 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. https://creativecommons.org/licenses/by-sa/2.5