VIR Vulnerability Intelligence Relay

CVE-2016-8745

high
Published 2017-08-10 · Modified 2025-09-02
💬 Discuss on Community ✚ Propose mitigation
CVSS v3
7.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS v4 NEW
—
not yet in upstream
VIR risk
7.5

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.

Predictions

Exploit likelihood
83%
Patch ETA
—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact
suse SUSE Affected 1 release
VersionStatusFixed in
— Affected —
debian Debian Fixed 5 releases
VersionStatusFixed in
trixie Fixed 0
sid Fixed 0
forky Fixed 0
bullseye Fixed 0
bookworm Fixed 0

Package impact
EcosystemPackageVulnerableFixed
java Mavenorg.apache.tomcat:tomcat-util>=9.0.0.M1,<9.0.0.M149.0.0.M14
java Mavenorg.apache.tomcat:tomcat-util>=8.5.0,<8.5.98.5.9
java Mavenorg.apache.tomcat:tomcat-util>=8.0.0-RC1,<8.0.418.0.41
java Mavenorg.apache.tomcat:tomcat-util>=7.0.0,<7.0.757.0.75
java Mavenorg.apache.tomcat:tomcat-util>=6.0.16,<6.0.506.0.50

Application impact
VendorProductVersionsFixed
apache apachetomcat8.0.1
apache apachetomcat7.0.0
apache apachetomcat7.0.1
apache apachetomcat7.0.2
apache apachetomcat7.0.3
apache apachetomcat7.0.4
apache apachetomcat7.0.5
apache apachetomcat7.0.6
apache apachetomcat7.0.7
apache apachetomcat7.0.8
apache apachetomcat7.0.9
apache apachetomcat7.0.11
apache apachetomcat7.0.12
apache apachetomcat7.0.13
apache apachetomcat7.0.14
apache apachetomcat7.0.15
apache apachetomcat7.0.16
apache apachetomcat7.0.17
apache apachetomcat7.0.18
apache apachetomcat7.0.19
apache apachetomcat7.0.20
apache apachetomcat7.0.21
apache apachetomcat7.0.22
apache apachetomcat7.0.23
apache apachetomcat7.0.24
apache apachetomcat7.0.25
apache apachetomcat7.0.26
apache apachetomcat7.0.27
apache apachetomcat7.0.28
apache apachetomcat7.0.29
apache apachetomcat7.0.30
apache apachetomcat7.0.31
apache apachetomcat7.0.32
apache apachetomcat7.0.33
apache apachetomcat7.0.34
apache apachetomcat7.0.35
apache apachetomcat7.0.36
apache apachetomcat7.0.37
apache apachetomcat7.0.38
apache apachetomcat7.0.39
apache apachetomcat7.0.40
apache apachetomcat7.0.41
apache apachetomcat7.0.42
apache apachetomcat7.0.43
apache apachetomcat7.0.44
apache apachetomcat7.0.45
apache apachetomcat7.0.46
apache apachetomcat7.0.47
apache apachetomcat7.0.48
apache apachetomcat7.0.49
apache apachetomcat7.0.50
apache apachetomcat7.0.52
apache apachetomcat7.0.53
apache apachetomcat7.0.54
apache apachetomcat7.0.55
apache apachetomcat7.0.56
apache apachetomcat7.0.57
apache apachetomcat7.0.58
apache apachetomcat7.0.59
apache apachetomcat7.0.60
apache apachetomcat7.0.61
apache apachetomcat7.0.62
apache apachetomcat7.0.63
apache apachetomcat7.0.64
apache apachetomcat7.0.65
apache apachetomcat7.0.66
apache apachetomcat7.0.67
apache apachetomcat7.0.68
apache apachetomcat7.0.69
apache apachetomcat7.0.70
apache apachetomcat7.0.71
apache apachetomcat7.0.72
apache apachetomcat7.0.73
apache apachetomcat8.0
apache apachetomcat8.0.0
apache apachetomcat8.0.2
apache apachetomcat8.0.3
apache apachetomcat8.0.4
apache apachetomcat8.0.5
apache apachetomcat8.0.6
apache apachetomcat8.0.7
apache apachetomcat8.0.8
apache apachetomcat8.0.9
apache apachetomcat8.0.10
apache apachetomcat8.0.11
apache apachetomcat8.0.12
apache apachetomcat8.0.13
apache apachetomcat8.0.14
apache apachetomcat8.0.15
apache apachetomcat8.0.16
apache apachetomcat8.0.17
apache apachetomcat8.0.18
apache apachetomcat8.0.19
apache apachetomcat8.0.20
apache apachetomcat8.0.21
apache apachetomcat8.0.22
apache apachetomcat8.0.23
apache apachetomcat8.0.24
apache apachetomcat8.0.25
apache apachetomcat8.0.26
apache apachetomcat8.0.27
apache apachetomcat8.0.28
apache apachetomcat8.0.29
apache apachetomcat8.0.30
apache apachetomcat8.0.31
apache apachetomcat8.0.32
apache apachetomcat8.0.33
apache apachetomcat8.0.34
apache apachetomcat8.0.35
apache apachetomcat8.0.36
apache apachetomcat8.0.37
apache apachetomcat8.0.38
apache apachetomcat8.0.39
apache apachetomcat8.5.0
apache apachetomcat8.5.1
apache apachetomcat8.5.2
apache apachetomcat8.5.3
apache apachetomcat8.5.4
apache apachetomcat8.5.5
apache apachetomcat8.5.6
apache apachetomcat8.5.7
apache apachetomcat8.5.8
apache apachetomcat9.0.0

References

CWEs

CWE-388

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.