Amazon Linux AMI : openssl (ALAS-2015-498)

medium Nessus Plugin ID 82047
New! Vulnerability Priority Rating (VPR)

Tenable calculates a dynamic VPR for every vulnerability. VPR combines vulnerability information with threat intelligence and machine learning algorithms to predict which vulnerabilities are most likely to be exploited in attacks. Read more about what VPR is and how it is different from CVSS.

VPR Score: 5.9


The remote Amazon Linux AMI host is missing a security update.


A use-after-free flaw was found in the way OpenSSL importrf certain Elliptic Curve private keys. An attacker could use this flaw to crash OpenSSL, if a specially crafted certificate was imported.

A denial of service flaw was found in the way OpenSSL handled certain SSLv2 messages. A malicious client could send a specially crafted SSLv2 CLIENT-MASTER-KEY message that would cause an OpenSSL server that both supports SSLv2 and enables EXPORT-grade cipher suites to crash. (CVE-2015-0293)

An out-of-bounds write flaw was found in the way OpenSSL reused certain ASN.1 structures. A remote attacker could use a specially crafted ASN.1 structure that, when parsed by an application, would cause that application to crash. (CVE-2015-0287)

A flaw was found in the the ASN (Abstract Syntax Notation) parsing code of OpenSSL. An attacker could present a specially crafted certificate, which when verified by an OpenSSL client or server could cause it to crash. (CVE-2015-0286)

A NULL pointer dereference was found in the way OpenSSL handled certain PKCS#7 blobs. An attacker could cause OpenSSL to crash, when applications verify, decrypt or parsed these ASN.1 encoded PKCS#7 blobs. OpenSSL clients and servers are not affected. (CVE-2015-0289)

A NULL pointer dereference flaw was found in OpenSSL's x509 certificate handling implementation. A remote attacker could use this flaw to crash an OpenSSL server using an invalid certificate key.


Run 'yum update openssl' to update your system.

See Also

Plugin Details

Severity: Medium

ID: 82047

File Name: ala_ALAS-2015-498.nasl

Version: 1.7

Type: local

Agent: unix

Published: 3/25/2015

Updated: 4/18/2018

Dependencies: ssh_get_info.nasl

Risk Information

Risk Factor: Medium

VPR Score: 5.9

CVSS v2.0

Base Score: 6.8

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

Vulnerability Information

CPE: cpe:2.3:o:amazon:linux:*:*:*:*:*:*:*:*, p-cpe:2.3:a:amazon:linux:openssl:*:*:*:*:*:*:*, p-cpe:2.3:a:amazon:linux:openssl-debuginfo:*:*:*:*:*:*:*, p-cpe:2.3:a:amazon:linux:openssl-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:amazon:linux:openssl-perl:*:*:*:*:*:*:*, p-cpe:2.3:a:amazon:linux:openssl-static:*:*:*:*:*:*:*

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Patch Publication Date: 3/23/2015

Reference Information

CVE: CVE-2015-0209, CVE-2015-0286, CVE-2015-0287, CVE-2015-0288, CVE-2015-0289, CVE-2015-0293

ALAS: 2015-498