Lucene search

K
osvGoogleOSV:DSA-2390-1
HistoryJan 15, 2012 - 12:00 a.m.

openssl - several

2012-01-1500:00:00
Google
osv.dev
12

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.26 Low

EPSS

Percentile

96.0%

Several vulnerabilities were discovered in OpenSSL, an implementation
of TLS and related protocols. The Common Vulnerabilities and
Exposures project identifies the following vulnerabilities:

  • CVE-2011-4108
    The DTLS implementation performs a MAC check only if certain
    padding is valid, which makes it easier for remote attackers
    to recover plaintext via a padding oracle attack.
  • CVE-2011-4109
    A double free vulnerability when X509_V_FLAG_POLICY_CHECK is
    enabled, allows remote attackers to cause applications crashes
    and potentially allow execution of arbitrary code by
    triggering failure of a policy check.
  • CVE-2011-4354
    On 32-bit systems, the operations on NIST elliptic curves
    P-256 and P-384 are not correctly implemented, potentially
    leaking the private ECC key of a TLS server. (Regular
    RSA-based keys are not affected by this vulnerability.)
  • CVE-2011-4576
    The SSL 3.0 implementation does not properly initialize data
    structures for block cipher padding, which might allow remote
    attackers to obtain sensitive information by decrypting the
    padding data sent by an SSL peer.
  • CVE-2011-4619
    The Server Gated Cryptography (SGC) implementation in OpenSSL
    does not properly handle handshake restarts, unnecessarily
    simplifying CPU exhaustion attacks.

For the oldstable distribution (lenny), these problems have been fixed
in version 0.9.8g-15+lenny15.

For the stable distribution (squeeze), these problems have been fixed
in version 0.9.8o-4squeeze5.

For the testing distribution (wheezy) and the unstable distribution
(sid), these problems have been fixed in version 1.0.0f-1.

We recommend that you upgrade your openssl packages.

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.26 Low

EPSS

Percentile

96.0%