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ubuntucveUbuntu.comUB:CVE-2016-0736
HistoryDec 22, 2016 - 12:00 a.m.

CVE-2016-0736

2016-12-2200:00:00
ubuntu.com
ubuntu.com
23

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.011 Low

EPSS

Percentile

84.3%

In Apache HTTP Server versions 2.4.0 to 2.4.23, mod_session_crypto was
encrypting its data/cookie using the configured ciphers with possibly
either CBC or ECB modes of operation (AES256-CBC by default), hence no
selectable or builtin authenticated encryption. This made it vulnerable to
padding oracle attacks, particularly with CBC.

OSVersionArchitecturePackageVersionFilename
ubuntu14.04noarchapache2< 2.4.7-1ubuntu4.15UNKNOWN
ubuntu16.04noarchapache2< 2.4.18-2ubuntu3.2UNKNOWN
ubuntu16.10noarchapache2< 2.4.18-2ubuntu4.1UNKNOWN

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.011 Low

EPSS

Percentile

84.3%