Debian Security Advisory
DLA-666-1 guile-2.0 -- LTS security update
- Date Reported:
- 18 Oct 2016
- Affected Packages:
- guile-2.0
- Vulnerable:
- Yes
- Security database references:
- In the Debian bugtracking system: Bug 840555, Bug 840556.
In Mitre's CVE dictionary: CVE-2016-8605, CVE-2016-8606. - More information:
-
Several vulnerabilities were discovered in GNU Guile, an implementation of the Scheme programming language. The Common Vulnerabilities and Exposures project identifies the following issues.
- CVE-2016-8605
The mkdir procedure of GNU Guile temporarily changed the process' umask to zero. During that time window, in a multithreaded application, other threads could end up creating files with insecure permissions.
- CVE-2016-8606
GNU Guile provides a
REPL server
which is a command prompt that developers can connect to for live coding and debugging purposes. The REPL server is started by the '--listen' command-line option or equivalent API.It was reported that the REPL server is vulnerable to the HTTP inter-protocol attack.
This constitutes a remote code execution vulnerability for developers running a REPL server that listens on a loopback device or private network. Applications that do not run a REPL server, as is usually the case, are unaffected.
For Debian 7
Wheezy
, these problems have been fixed in version 2.0.5+1-3+deb7u1.We recommend that you upgrade your guile-2.0 packages.
Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS
- CVE-2016-8605