GLSA-200611-01 : Screen: UTF-8 character handling vulnerability
Low Nessus Plugin ID 22939
SynopsisThe remote Gentoo host is missing one or more security-related patches.
DescriptionThe remote host is affected by the vulnerability described in GLSA-200611-01 (Screen: UTF-8 character handling vulnerability)
cstone and Richard Felker discovered a flaw in Screen's UTF-8 combining character handling.
The vulnerability can be exploited by writing a special string of characters to a Screen window. A remote attacker could cause a Denial of Service or possibly execute arbitrary code with the privileges of the user running Screen through a program being run inside a Screen session, such as an IRC client or a mail client.
There is no known workaround at this time.
SolutionAll Screen users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=app-misc/screen-4.0.3'