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
0.019 Low
EPSS
Percentile
88.3%
The Alias feature in SnakeYAML before 1.26 allows entity expansion during a
load operation, a related issue to CVE-2003-1564.
Author | Note |
---|---|
alexmurray | Upstream dispute this as a valid CVE - https://bitbucket.org/asomov/snakeyaml/issues/377/allow-configuration-for-preventing-billion#comment-55227358 - and they added a test-case for this type of attack of 2 years ago https://bitbucket.org/asomov/snakeyaml/commits/04378d05777d21d114a9cdc24976ad49c8919222 so this would appear to be a non-issue |
bitbucket.org/asomov/snakeyaml/issues/377/allow-configuration-for-preventing-billion
launchpad.net/bugs/cve/CVE-2017-18640
mvnrepository.com/artifact/org.yaml/snakeyaml/1.25/usages
nvd.nist.gov/vuln/detail/CVE-2017-18640
security-tracker.debian.org/tracker/CVE-2017-18640
www.cve.org/CVERecord?id=CVE-2017-18640
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
0.019 Low
EPSS
Percentile
88.3%