7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.002 Low
EPSS
Percentile
60.6%
Varnish varnish-modules before 0.17.1 allows remote attackers to cause a
denial of service (daemon restart) in some configurations. This does not
affect organizations that only install the Varnish Cache product; however,
it is common to install both Varnish Cache and varnish-modules.
Specifically, an assertion failure or NULL pointer dereference can be
triggered in Varnish Cache through the varnish-modules header.append() and
header.copy() functions. For some Varnish Configuration Language (VCL)
files, this gives remote clients an opportunity to cause a Varnish Cache
restart. A restart reduces overall availability and performance due to an
increased number of cache misses, and may cause higher load on backend
servers.
Author | Note |
---|---|
avital | introduced in 0.17.0 |
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.002 Low
EPSS
Percentile
60.6%