OpenSSL 1.0.1 < 1.0.1p Multiple Vulnerabilities

medium Nessus Plugin ID 84636

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Synopsis

The remote service is affected by multiple vulnerabilities.

Description

The version of OpenSSL installed on the remote host is prior to 1.0.1p. It is, therefore, affected by multiple vulnerabilities as referenced in the 1.0.1p advisory.

- ssl/s3_clnt.c in OpenSSL 1.0.0 before 1.0.0t, 1.0.1 before 1.0.1p, and 1.0.2 before 1.0.2d, when used for a multi-threaded client, writes the PSK identity hint to an incorrect data structure, which allows remote servers to cause a denial of service (race condition and double free) via a crafted ServerKeyExchange message. (CVE-2015-3196)

- The X509_verify_cert function in crypto/x509/x509_vfy.c in OpenSSL 1.0.1n, 1.0.1o, 1.0.2b, and 1.0.2c does not properly process X.509 Basic Constraints cA values during identification of alternative certificate chains, which allows remote attackers to spoof a Certification Authority role and trigger unintended certificate verifications via a valid leaf certificate. (CVE-2015-1793)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to OpenSSL version 1.0.1p or later.

Plugin Details

Severity: Medium

ID: 84636

File Name: openssl_1_0_1p.nasl

Version: 1.19

Type: combined

Agent: windows, macosx, unix

Family: Web Servers

Published: 7/9/2015

Updated: 10/23/2024

Configuration: Enable thorough checks

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 5

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

CVSS Score Source: CVE-2015-1793

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.9

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

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:openssl:openssl

Required KB Items: installed_sw/OpenSSL

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/9/2015

Vulnerability Publication Date: 7/9/2015

Reference Information

CVE: CVE-2015-1793, CVE-2015-3196

BID: 75652

Detections

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