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osvGoogleOSV:DLA-466-1
HistoryMay 11, 2016 - 12:00 a.m.

ocaml - security update

2016-05-1100:00:00
Google
osv.dev
7

9.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

6.4 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:N/A:P

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

CPENameOperatorVersion
ocamleq3.12.1-4

9.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

6.4 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:N/A:P