Debian Security Advisory

DLA-466-1 ocaml -- LTS security update

Date Reported:
11 May 2016
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2015-8869.
More information:

OCaml versions 4.02.3 and earlier have a runtime bug that, on 64-bit platforms, causes sizes arguments to an internal memmove call to be sign-extended from 32 to 64-bits before being passed to the memmove function. This leads arguments between 2GiB and 4GiB to be interpreted as larger than they are (specifically, a bit below 2^64), causing a buffer overflow. Arguments between 4GiB and 6GiB are interpreted as 4GiB smaller than they should be, causing a possible information leak.A

For Debian 7 Wheezy, these issues have been fixed in ocaml version 3.12.1-4+deb7u1