5.1 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:H/Au:N/C:P/I:P/A:P
0.204 Low
EPSS
Percentile
96.3%
CentOS Errata and Security Advisory CESA-2010:0054
OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL v2/v3)
and Transport Layer Security (TLS v1) protocols, as well as a
full-strength, general purpose cryptography library.
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)
All OpenSSL users should upgrade to these updated packages, which contain
backported patches to resolve these issues. For the update to take effect,
all services linked to the OpenSSL library must be restarted, or the system
rebooted.
Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2010-January/078645.html
https://lists.centos.org/pipermail/centos-announce/2010-January/078646.html
Affected packages:
openssl
openssl-devel
openssl-perl
Upstream details at:
https://access.redhat.com/errata/RHSA-2010:0054
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
CentOS | 5 | i386 | openssl | < 0.9.8e-12.el5_4.1 | openssl-0.9.8e-12.el5_4.1.i386.rpm |
CentOS | 5 | i686 | openssl | < 0.9.8e-12.el5_4.1 | openssl-0.9.8e-12.el5_4.1.i686.rpm |
CentOS | 5 | i386 | openssl-devel | < 0.9.8e-12.el5_4.1 | openssl-devel-0.9.8e-12.el5_4.1.i386.rpm |
CentOS | 5 | i386 | openssl-perl | < 0.9.8e-12.el5_4.1 | openssl-perl-0.9.8e-12.el5_4.1.i386.rpm |
CentOS | 5 | i386 | openssl | < 0.9.8e-12.el5_4.1 | openssl-0.9.8e-12.el5_4.1.i386.rpm |
CentOS | 5 | i686 | openssl | < 0.9.8e-12.el5_4.1 | openssl-0.9.8e-12.el5_4.1.i686.rpm |
CentOS | 5 | i386 | openssl-devel | < 0.9.8e-12.el5_4.1 | openssl-devel-0.9.8e-12.el5_4.1.i386.rpm |
CentOS | 5 | i386 | openssl-perl | < 0.9.8e-12.el5_4.1 | openssl-perl-0.9.8e-12.el5_4.1.i386.rpm |
CentOS | 5 | i686 | openssl | < 0.9.8e-12.el5_4.1 | openssl-0.9.8e-12.el5_4.1.i686.rpm |
CentOS | 5 | x86_64 | openssl | < 0.9.8e-12.el5_4.1 | openssl-0.9.8e-12.el5_4.1.x86_64.rpm |