GLSA 202011-05: libssh: Denial of Service
| Severity: | normal |
| Title: | libssh: Denial of Service |
| Date: | 11/03/2020 |
| Bugs: | |
| ID: | 202011-05 |
Synopsis
A vulnerability in libssh could lead to a Denial of Service condition.Background
libssh is a multiplatform C library implementing the SSHv2 protocol on client and server side.
Affected packages
| Package | Vulnerable | Unaffected | Architecture(s) |
|---|---|---|---|
| net-libs/libssh | < 0.9.5 | >= 0.9.5 | All supported architectures |
Description
libssh was found to have a NULL pointer dereference in tftpserver.c if the function ssh_buffer_new returns NULL.
Impact
An attacker could cause a possible Denial of Service condition.
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-0.9.5"
References
Availability
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
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 2010 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.