FreeBSD : polarssl -- Remote attack using crafted certificates (a5856eba-a015-11e4-a680-1c6f65c3c4ff)

This script is Copyright (C) 2015 Tenable Network Security, Inc.


Synopsis :

The remote FreeBSD host is missing one or more security-related
updates.

Description :

PolarSSL team reports :

During the parsing of a ASN.1 sequence, a pointer in the linked list
of asn1_sequence is not initialized by asn1_get_sequence_of(). In case
an error occurs during parsing of the list, a situation is created
where the uninitialized pointer is passed to polarssl_free().

This sequence can be triggered when a PolarSSL entity is parsing a
certificate. So practically this means clients when receiving a
certificate from the server or servers in case they are actively
asking for a client certificate.

See also :

http://www.nessus.org/u?8e6caee6
https://www.certifiedsecure.com/polarssl-advisory/
http://www.nessus.org/u?41e394db

Solution :

Update the affected packages.

Risk factor :

High / CVSS Base Score : 7.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P)

Family: FreeBSD Local Security Checks

Nessus Plugin ID: 80840 ()

Bugtraq ID:

CVE ID: CVE-2015-1182

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