| Descripción: | Summary:
The remote host is missing an update for the 'libressl'
package(s) announced via the referenced advisory.
Vulnerability Insight:
libressl was updated to version 2.2.1 to fix 16 security issues.
LibreSSL is a fork of OpenSSL. Because of that CVEs affecting OpenSSL
often also affect LibreSSL.
These security issues were fixed:
- CVE-2014-3570: The BN_sqr implementation in OpenSSL before 0.9.8zd,
1.0.0 before 1.0.0p, and 1.0.1 before 1.0.1k did not properly calculate
the square of a BIGNUM value, which might make it easier for remote
attackers to defeat cryptographic protection mechanisms via unspecified
vectors, related to crypto/bn/asm/mips.pl, crypto/bn/asm/x86_64-gcc.c,
and crypto/bn/bn_asm.c (bsc#912296).
- CVE-2014-3572: The ssl3_get_key_exchange function in s3_clnt.c in
OpenSSL before 0.9.8zd, 1.0.0 before 1.0.0p, and 1.0.1 before 1.0.1k
allowed remote SSL servers to conduct ECDHE-to-ECDH downgrade attacks
and trigger a loss of forward secrecy by omitting the ServerKeyExchange
message (bsc#912015).
- CVE-2015-1792: The do_free_upto function in crypto/cms/cms_smime.c in
OpenSSL before 0.9.8zg, 1.0.0 before 1.0.0s, 1.0.1 before 1.0.1n, and
1.0.2 before 1.0.2b allowed remote attackers to cause a denial of
service (infinite loop) via vectors that trigger a NULL value of a BIO
data structure, as demonstrated by an unrecognized X.660 OID for a hash
function (bsc#934493).
- CVE-2014-8275: OpenSSL before 0.9.8zd, 1.0.0 before 1.0.0p, and 1.0.1
before 1.0.1k did not enforce certain constraints on certificate data,
which allowed remote attackers to defeat a fingerprint-based
certificate-blacklist protection mechanism by including crafted data
within a certificate's unsigned portion, related to
crypto/asn1/a_verify.c, crypto/dsa/dsa_asn1.c, crypto/ecdsa/ecs_vrf.c,
and crypto/x509/x_all.c (bsc#912018).
- CVE-2015-0209: Use-after-free vulnerability in the d2i_ECPrivateKey
function in crypto/ec/ec_asn1.c in OpenSSL before 0.9.8zf, 1.0.0 before
1.0.0r, 1.0.1 before 1.0.1m, and 1.0.2 before 1.0.2a might allowed
remote attackers to cause a denial of service (memory corruption and
application crash) or possibly have unspecified other impact via a
malformed Elliptic Curve (EC) private-key file that is improperly
handled during import (bsc#919648).
- CVE-2015-1789: The X509_cmp_time function in crypto/x509/x509_vfy.c in
OpenSSL before 0.9.8zg, 1.0.0 before 1.0.0s, 1.0.1 before 1.0.1n, and
1.0.2 before 1.0.2b allowed remote attackers to cause a denial of
service (out-of-bounds read and application crash) via a crafted length
field in ASN1_TIME data, as demonstrated by an attack against a server
that supports client authentication with a custom verific ...
Description truncated, please see the referenced URL(s) for more information.
Affected Software/OS:
libressl on openSUSE 13.2
Solution:
Please install the updated package(s).
CVSS Score:
7.5
CVSS Vector:
AV:N/AC:L/Au:N/C:P/I:P/A:P
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