National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2016-8745 Detail

Current Description

A bug in the error handling of the send file code for the NIO HTTP connector in Apache Tomcat 9.0.0.M1 to 9.0.0.M13, 8.5.0 to 8.5.8, 8.0.0.RC1 to 8.0.39, 7.0.0 to 7.0.73 and 6.0.16 to 6.0.48 resulted in the current Processor object being added to the Processor cache multiple times. This in turn meant that the same Processor could be used for concurrent requests. Sharing a Processor can result in information leakage between requests including, not not limited to, session ID and the response body. The bug was first noticed in 8.5.x onwards where it appears the refactoring of the Connector code for 8.5.x onwards made it more likely that the bug was observed. Initially it was thought that the 8.5.x refactoring introduced the bug but further investigation has shown that the bug is present in all currently supported Tomcat versions.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N (V3.0 legend)
Impact Score: 3.6
Exploitability Score: 3.9


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): None

CVSS v2.0 Severity and Metrics:

Base Score: 5.0 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): None
Availability (A): None
Additional Information:
Allows unauthorized disclosure of information

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://rhn.redhat.com/errata/RHSA-2017-0457.html
http://rhn.redhat.com/errata/RHSA-2017-0527.html
http://www.debian.org/security/2017/dsa-3754
http://www.debian.org/security/2017/dsa-3755
http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
http://www.securityfocus.com/bid/94828 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1037432 Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2017:0455
https://access.redhat.com/errata/RHSA-2017:0456
https://access.redhat.com/errata/RHSA-2017:0935
https://lists.apache.org/thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e81d45c4f8d0551@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/37220405a377c0182d2afdbc36461c4783b2930fbeae3a17f1333113@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/388a323769f1dff84c9ec905455aa73fbcb20338e3c7eb131457f708@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/39ae1f0bd5867c15755a6f959b271ade1aea04ccdc3b2e639dcd903b@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/3d19773b4cf0377db62d1e9328bf9160bf1819f04f988315086931d7@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/4113c05d37f37c12b8033205684f04033c5f7a9bae117d4af23b32b4@%3Cannounce.tomcat.apache.org%3E Vendor Advisory
https://lists.apache.org/thread.html/6af47120905aa7d8fe12f42e8ff2284fb338ba141d3b77b8c7cb61b3@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/845312a10aabbe2c499fca94003881d2c79fc993d85f34c1f5c77424@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/88855876c33f2f9c532ffb75bfee570ccf0b17ffa77493745af9a17a@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/b5e3f51d28cd5d9b1809f56594f2cf63dcd6a90429e16ea9f83bbedc@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/b84ad1258a89de5c9c853c7f2d3ad77e5b8b2930be9e132d5cef6b95@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/b8a1bf18155b552dcf9a928ba808cbadad84c236d85eab3033662cfb@%3Cdev.tomcat.apache.org%3E
https://security.gentoo.org/glsa/201705-09 Third Party Advisory VDB Entry
https://security.netapp.com/advisory/ntap-20180607-0002/

Technical Details

Vulnerability Type (View All)

Known Affected Software Configurations Switch to CPE 2.3

Configuration 1 ( hide )
 cpe:/a:apache:tomcat:7.0.0
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 cpe:/a:apache:tomcat:7.0.1
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 cpe:/a:apache:tomcat:7.0.2
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 cpe:/a:apache:tomcat:7.0.3
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 cpe:/a:apache:tomcat:7.0.4
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 cpe:/a:apache:tomcat:7.0.5
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 cpe:/a:apache:tomcat:7.0.6
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 cpe:/a:apache:tomcat:7.0.7
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 cpe:/a:apache:tomcat:7.0.8
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 cpe:/a:apache:tomcat:7.0.9
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 cpe:/a:apache:tomcat:7.0.11
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 cpe:/a:apache:tomcat:7.0.12
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 cpe:/a:apache:tomcat:7.0.13
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 cpe:/a:apache:tomcat:7.0.14
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 cpe:/a:apache:tomcat:7.0.15
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 cpe:/a:apache:tomcat:7.0.16
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 cpe:/a:apache:tomcat:7.0.17
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 cpe:/a:apache:tomcat:7.0.18
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 cpe:/a:apache:tomcat:7.0.19
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 cpe:/a:apache:tomcat:7.0.20
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 cpe:/a:apache:tomcat:7.0.21
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 cpe:/a:apache:tomcat:7.0.22
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 cpe:/a:apache:tomcat:7.0.23
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 cpe:/a:apache:tomcat:7.0.24
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 cpe:/a:apache:tomcat:7.0.25
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 cpe:/a:apache:tomcat:7.0.26
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 cpe:/a:apache:tomcat:7.0.27
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 cpe:/a:apache:tomcat:7.0.28
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 cpe:/a:apache:tomcat:7.0.29
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 cpe:/a:apache:tomcat:7.0.30
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 cpe:/a:apache:tomcat:7.0.31
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 cpe:/a:apache:tomcat:7.0.32
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 cpe:/a:apache:tomcat:7.0.33
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 cpe:/a:apache:tomcat:7.0.34
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 cpe:/a:apache:tomcat:7.0.35
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 cpe:/a:apache:tomcat:7.0.36
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 cpe:/a:apache:tomcat:7.0.37
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 cpe:/a:apache:tomcat:7.0.38
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 cpe:/a:apache:tomcat:7.0.39
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 cpe:/a:apache:tomcat:7.0.40
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 cpe:/a:apache:tomcat:7.0.41
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 cpe:/a:apache:tomcat:7.0.42
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 cpe:/a:apache:tomcat:7.0.43
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 cpe:/a:apache:tomcat:7.0.44
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 cpe:/a:apache:tomcat:7.0.45
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 cpe:/a:apache:tomcat:7.0.46
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 cpe:/a:apache:tomcat:7.0.47
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 cpe:/a:apache:tomcat:7.0.48
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 cpe:/a:apache:tomcat:7.0.49
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 cpe:/a:apache:tomcat:7.0.50
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 cpe:/a:apache:tomcat:7.0.52
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 cpe:/a:apache:tomcat:7.0.53
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 cpe:/a:apache:tomcat:7.0.54
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 cpe:/a:apache:tomcat:7.0.55
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 cpe:/a:apache:tomcat:7.0.56
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 cpe:/a:apache:tomcat:7.0.57
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 cpe:/a:apache:tomcat:7.0.58
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 cpe:/a:apache:tomcat:7.0.59
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 cpe:/a:apache:tomcat:7.0.60
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 cpe:/a:apache:tomcat:7.0.61
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 cpe:/a:apache:tomcat:7.0.62
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 cpe:/a:apache:tomcat:7.0.63
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 cpe:/a:apache:tomcat:7.0.64
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 cpe:/a:apache:tomcat:7.0.65
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 cpe:/a:apache:tomcat:7.0.66
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 cpe:/a:apache:tomcat:7.0.67
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 cpe:/a:apache:tomcat:7.0.68
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 cpe:/a:apache:tomcat:7.0.69
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 cpe:/a:apache:tomcat:7.0.70
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 cpe:/a:apache:tomcat:7.0.71
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 cpe:/a:apache:tomcat:7.0.72
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 cpe:/a:apache:tomcat:7.0.73
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 cpe:/a:apache:tomcat:8.0
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 cpe:/a:apache:tomcat:8.0.0:rc1
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 cpe:/a:apache:tomcat:8.0.0:rc10
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 cpe:/a:apache:tomcat:8.0.0:rc3
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 cpe:/a:apache:tomcat:8.0.0:rc5
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 cpe:/a:apache:tomcat:8.0.1
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 cpe:/a:apache:tomcat:8.0.2
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 cpe:/a:apache:tomcat:8.0.3
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 cpe:/a:apache:tomcat:8.0.4
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 cpe:/a:apache:tomcat:8.0.5
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 cpe:/a:apache:tomcat:8.0.6
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 cpe:/a:apache:tomcat:8.0.7
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 cpe:/a:apache:tomcat:8.0.8
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 cpe:/a:apache:tomcat:8.0.9
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 cpe:/a:apache:tomcat:8.0.10
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 cpe:/a:apache:tomcat:8.0.11
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 cpe:/a:apache:tomcat:8.0.12
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 cpe:/a:apache:tomcat:8.0.13
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 cpe:/a:apache:tomcat:8.0.14
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 cpe:/a:apache:tomcat:8.0.15
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 cpe:/a:apache:tomcat:8.0.16
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 cpe:/a:apache:tomcat:8.0.17
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 cpe:/a:apache:tomcat:8.0.18
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 cpe:/a:apache:tomcat:8.0.19
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 cpe:/a:apache:tomcat:8.0.20
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 cpe:/a:apache:tomcat:8.0.21
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 cpe:/a:apache:tomcat:8.0.22
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 cpe:/a:apache:tomcat:8.0.23
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 cpe:/a:apache:tomcat:8.0.24
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Showing 100 of 138 CPEs, view all CPEs here.

Change History

11 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-8745
NVD Published Date:
08/10/2017
NVD Last Modified:
04/15/2019