Scientific Linux Security Update : openssl on SL5.x i386/x86_64

medium Nessus Plugin ID 60725
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Synopsis

The remote Scientific Linux host is missing one or more security updates.

Description

CVE-2009-2409 deprecate MD2 in SSL cert validation (Kaminsky)

CVE-2009-4355 openssl significant memory leak in certain SSLv3 requests (DoS)

It was found that the OpenSSL library did not properly re-initialize its internal state in the SSL_library_init() function after previous calls to the CRYPTO_cleanup_all_ex_data() function, which would cause a memory leak for each subsequent SSL connection. This flaw could cause server applications that call those functions during reload, such as a combination of the Apache HTTP Server, mod_ssl, PHP, and cURL, to consume all available memory, resulting in a denial of service. (CVE-2009-4355)

Dan Kaminsky found that browsers could accept certificates with MD2 hash signatures, even though MD2 is no longer considered a cryptographically strong algorithm. This could make it easier for an attacker to create a malicious certificate that would be treated as trusted by a browser. OpenSSL now disables the use of the MD2 algorithm inside signatures by default. (CVE-2009-2409)

For the update to take effect, all services linked to the OpenSSL library must be restarted, or the system rebooted.

Solution

Update the affected openssl, openssl-devel and / or openssl-perl packages.

See Also

http://www.nessus.org/u?802f5323

Plugin Details

Severity: Medium

ID: 60725

File Name: sl_20100119_openssl_on_SL5_x.nasl

Version: 1.7

Type: local

Agent: unix

Published: 8/1/2012

Updated: 1/14/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 5.1

Vector: AV:N/AC:H/Au:N/C:P/I:P/A:P

Vulnerability Information

CPE: x-cpe:/o:fermilab:scientific_linux

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

Patch Publication Date: 1/19/2010

Reference Information

CVE: CVE-2009-2409, CVE-2009-4355

CWE: 310, 399