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FreeBSD : nss -- exploitable buffer overflow in SSLv2 protocol handler (207f8ff3-f697-11d8-81b0-000347a4fa7d)

high Nessus Plugin ID 37032

Synopsis

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

Description

ISS X-Force reports that a remotely exploitable buffer overflow exists in the Netscape Security Services (NSS) library's implementation of SSLv2. From their advisory :

The NSS library contains a flaw in SSLv2 record parsing that may lead to remote compromise. When parsing the first record in an SSLv2 negotiation, the client hello message, the server fails to validate the length of a record field. As a result, it is possible for an attacker to trigger a heap-based overflow of arbitrary length.

Note that the vulnerable NSS library is also present in Mozilla-based browsers. However, it is not believed that browsers are affected, as the vulnerability is present only in code used by SSLv2 *servers*.

Solution

Update the affected package.

See Also

http://www.nessus.org/u?883d3e88

http://www.nessus.org/u?b1363c6c

Plugin Details

Severity: High

ID: 37032

File Name: freebsd_pkg_207f8ff3f69711d881b0000347a4fa7d.nasl

Version: 1.19

Type: local

Published: 4/23/2009

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.0

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.2

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

Vulnerability Information

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

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/27/2004

Vulnerability Publication Date: 8/23/2004

Exploitable With

CANVAS (CANVAS)

Core Impact

Reference Information

CVE: CVE-2004-0826

BID: 11015

Secunia: 12362