FreeBSD : curl -- password overflow vulnerability (f4d638b9-e6e5-4dbe-8c70-571dbc116174)

Critical Nessus Plugin ID 117305

Synopsis

The remote FreeBSD host is missing a security-related update.

Description

curl security problems :

CVE-2018-14618: NTLM password overflow via integer overflow

The internal function Curl_ntlm_core_mk_nt_hash multiplies the length
of the password by two (SUM) to figure out how large temporary storage
area to allocate from the heap.

The length value is then subsequently used to iterate over the
password and generate output into the allocated storage buffer. On
systems with a 32 bit size_t, the math to calculate SUM triggers an
integer overflow when the password length exceeds 2GB (2^31 bytes).
This integer overflow usually causes a very small buffer to actually
get allocated instead of the intended very huge one, making the use of
that buffer end up in a heap buffer overflow.

This bug is almost identical to CVE-2017-8816.

Solution

Update the affected package.

See Also

https://curl.haxx.se/docs/security.html

https://curl.haxx.se/docs/CVE-2018-14618.html

http://www.nessus.org/u?1185b533

Plugin Details

Severity: Critical

ID: 117305

File Name: freebsd_pkg_f4d638b9e6e54dbe8c70571dbc116174.nasl

Version: 1.3

Type: local

Published: 2018/09/06

Modified: 2019/01/22

Dependencies: 12634

Risk Information

Risk Factor: Critical

CVSS v2.0

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS v3.0

Base Score: 9.8

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:curl, cpe:/o:freebsd:freebsd

Patch Publication Date: 2018/09/05

Vulnerability Publication Date: 2018/09/05

Reference Information

CVE: CVE-2018-14618