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freebsdFreeBSD2AE114DE-C064-11E1-B5E0-000C299B62E1
HistoryMay 03, 2012 - 12:00 a.m.

FreeBSD -- OpenSSL multiple vulnerabilities

2012-05-0300:00:00
vuxml.freebsd.org
15

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

0.185 Low

EPSS

Percentile

96.1%

Problem description:

OpenSSL fails to clear the bytes used as block cipher padding in SSL 3.0
records when operating as a client or a server that accept SSL 3.0
handshakes. As a result, in each record, up to 15 bytes of uninitialized
memory may be sent, encrypted, to the SSL peer. This could include
sensitive contents of previously freed memory. [CVE-2011-4576]
OpenSSL support for handshake restarts for server gated cryptography (SGC)
can be used in a denial-of-service attack. [CVE-2011-4619]
If an application uses OpenSSLโ€™s certificate policy checking when
verifying X509 certificates, by enabling the X509_V_FLAG_POLICY_CHECK
flag, a policy check failure can lead to a double-free. [CVE-2011-4109]
A weakness in the OpenSSL PKCS #7 code can be exploited using
Bleichenbacherโ€™s attack on PKCS #1 v1.5 RSA padding also known as the
million message attack (MMA). [CVE-2012-0884]
The asn1_d2i_read_bio() function, used by the d2i_bio and d2i_fp
functions, in OpenSSL contains multiple integer errors that can cause
memory corruption when parsing encoded ASN.1 data. This error can occur
on systems that parse untrusted ASN.1 data, such as X.509 certificates
or RSA public keys. [CVE-2012-2110]

OSVersionArchitecturePackageVersionFilename
FreeBSDanynoarchfreebsd=ย 7.4UNKNOWN
FreeBSDanynoarchfreebsd<ย 7.4_8UNKNOWN

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

0.185 Low

EPSS

Percentile

96.1%