Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
[gentoo-security] GLSA: libmcrypt
View unanswered posts
View posts from last 24 hours

Reply to topic    Gentoo Forums Forum Index News & Announcements
View previous topic :: View next topic  
Author Message

Joined: 16 Apr 2002
Posts: 18351

PostPosted: Mon Jan 06, 2003 4:57 am    Post subject: [gentoo-security] GLSA: libmcrypt Reply with quote

Daniel Ahlberg wrote:
- - --------------------------------------------------------------------
- - --------------------------------------------------------------------

PACKAGE : libmcrypt
SUMMARY�: buffer overflows and memory exhaustion
DATE �� : 2003-01-05 12:01 UTC
EXPLOIT : remote

- - --------------------------------------------------------------------

Post by Ilia Alshanetsky <>:

"limbcrypt versions prior to 2.5.5 contain a number of buffer
overflow vulnerabilities that stem from imporper or lacking input
validation. By passing a longer then expected input to a number of
functions (multiple functions are affected) the user can successful
make libmcrypt crash.

Another vulnerability is due to the way libmcrypt loads algorithms via
libtool. When the algorithms are loaded dynamically the each time the
algorithm is loaded a small (few kilobytes) of memory are leaked. In a
persistant enviroment (web server) this could lead to a memory
exhaustion attack that will exhaust all avaliable memory by launching
repeated requests at an application utilizing the mcrypt library.

The solution to both of these problem is to upgrade to the latest
release of libmcrypt, 2.5.5."


It is recommended that all Gentoo Linux users who are running
dev-libs/libmcrypt-2.5.1-r4 or earlier update their systems as

emerge rsync
emerge libmcrypt
emerge clean

- - -------------------------------------------------------------------- - GnuPG key is available at
- - --------------------------------------------------------------------

Mailing List Archive: Unavailable
The media sells it and you live the role.
Back to top
View user's profile Send private message
Display posts from previous:   
Reply to topic    Gentoo Forums Forum Index News & Announcements All times are GMT
Page 1 of 1

Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum