Joined: 12 May 2004
|Posted: Fri Dec 23, 2005 12:26 pm Post subject: [ GLSA 200512-13 ] Dropbear: Privilege escalation
|Gentoo Linux Security Advisory
Title: Dropbear: Privilege escalation (GLSA 200512-13)
Date: December 23, 2005
A buffer overflow in Dropbear could allow authenticated users to execute arbitrary code as the root user.
Dropbear is an SSH server and client with a small memory footprint.
Vulnerable: < 0.47
Unaffected: >= 0.47
Architectures: All supported architectures
Under certain conditions Dropbear could fail to allocate a sufficient amount of memory, possibly resulting in a buffer overflow.
By sending specially crafted data to the server, authenticated users could exploit this vulnerability to execute arbitrary code with the permissions of the SSH server user, which is the root user by default.
There is no known workaround at this time.
All Dropbear users should upgrade to the latest version:
|# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/dropbear-0.47"
Last edited by GLSA on Sun May 07, 2006 4:59 pm; edited 1 time in total