Actu
Vigil@nce - mutt: integer overflow of mutt_substrdup
December 2014 by Vigil@nce
This bulletin was written by Vigil@nce : http://vigilance.fr/offer
SYNTHESIS OF THE VULNERABILITY
An attacker can generate an integer overflow in the
mutt_substrdup() function of mutt, in order to trigger a denial of
service, and possibly to execute code.
Impacted products: Debian, Unix (platform)
Severity: 2/4
Creation date: 27/11/2014
DESCRIPTION OF THE VULNERABILITY
The mutt product is by default configured with weed=yes, which
indicates to filter headers.
However, when weed is disabled, and when a mail contains an empty
header, an addition overflows, and an allocated memory area is too
short.
An attacker can therefore generate an integer overflow in the
mutt_substrdup() function of mutt, in order to trigger a denial of
service, and possibly to execute code.
ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN
http://vigilance.fr/vulnerability/mutt-integer-overflow-of-mutt-substrdup-15714
