| Description: | Summary:
The remote host is missing an update for the 'openssl' package(s) announced via the USN-2830-1 advisory.
Vulnerability Insight:
Guy Leaver discovered that OpenSSL incorrectly handled a ServerKeyExchange
for an anonymous DH ciphersuite with the value of p set to 0. A remote
attacker could possibly use this issue to cause OpenSSL to crash, resulting
in a denial of service. This issue only applied to Ubuntu 15.10.
(CVE-2015-1794)
Hanno Bock discovered that the OpenSSL Montgomery squaring procedure
algorithm may produce incorrect results when being used on x86_64. A remote
attacker could possibly use this issue to break encryption. This issue only
applied to Ubuntu 15.10. (CVE-2015-3193)
Loic Jonas Etienne discovered that OpenSSL incorrectly handled ASN.1
signatures with a missing PSS parameter. A remote attacker could possibly
use this issue to cause OpenSSL to crash, resulting in a denial of service.
(CVE-2015-3194)
Adam Langley discovered that OpenSSL incorrectly handled malformed
X509_ATTRIBUTE structures. A remote attacker could possibly use this issue
to cause OpenSSL to consume resources, resulting in a denial of service.
(CVE-2015-3195)
It was discovered that OpenSSL incorrectly handled PSK identity hints. A
remote attacker could possibly use this issue to cause OpenSSL to crash,
resulting in a denial of service. This issue only applied to Ubuntu 12.04
LTS, Ubuntu 14.04 LTS and Ubuntu 15.04. (CVE-2015-3196)
Affected Software/OS:
'openssl' package(s) on Ubuntu 12.04, Ubuntu 14.04, Ubuntu 15.04, Ubuntu 15.10.
Solution:
Please install the updated package(s).
CVSS Score:
5.0
CVSS Vector:
AV:N/AC:L/Au:N/C:N/I:N/A:P
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