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redhatRedHatRHSA-2012:0699
HistoryMay 29, 2012 - 12:00 a.m.

(RHSA-2012:0699) Moderate: openssl security and bug fix update

2012-05-2900:00:00
access.redhat.com
15

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

0.053 Low

EPSS

Percentile

92.2%

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.

An integer underflow flaw, leading to a buffer over-read, was found in the
way OpenSSL handled DTLS (Datagram Transport Layer Security) application
data record lengths when using a block cipher in CBC (cipher-block
chaining) mode. A malicious DTLS client or server could use this flaw to
crash its DTLS connection peer. (CVE-2012-2333)

Red Hat would like to thank the OpenSSL project for reporting this issue.
Upstream acknowledges Codenomicon as the original reporter.

On Red Hat Enterprise Linux 6, this update also fixes an uninitialized
variable use bug, introduced by the fix for CVE-2012-0884 (released via
RHSA-2012:0426). This bug could possibly cause an attempt to create an
encrypted message in the CMS (Cryptographic Message Syntax) format to fail.

All OpenSSL users should upgrade to these updated packages, which contain a
backported patch to resolve these issues. For the update to take effect,
all services linked to the OpenSSL library must be restarted, or the system
rebooted.

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

0.053 Low

EPSS

Percentile

92.2%