CVE-2017-18640

high

Description

The Alias feature in SnakeYAML before 1.26 allows entity expansion during a load operation, a related issue to CVE-2003-1564.

References

https://www.tenable.com/blog/oracle-april-2021-critical-patch-update-addresses-257-cves-including-zerologon-cve-2020-1472

https://www.oracle.com/security-alerts/cpuApr2021.html

https://security.gentoo.org/glsa/202305-28

https://mvnrepository.com/artifact/org.yaml/snakeyaml/1.25/usages

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PTVJC54XGX26UJVVYCXZ7D25X3R5T2G6/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CKN7VGIKTYBCAKYBRG55QHXAY5UDZ7HA/

https://lists.apache.org/thread.html/rfe0aab6c3bebbd9cbfdedb65ff3fdf420714bcb8acdfd346077e1263%40%3Ccommon-commits.hadoop.apache.org%3E

https://lists.apache.org/thread.html/rf95bebee6dfcc55067cebe8482bd31e6f481d9f74ba8e03f860c3ec7%40%3Ccommits.cassandra.apache.org%3E

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https://bitbucket.org/snakeyaml/snakeyaml/wiki/Changes

https://bitbucket.org/asomov/snakeyaml/wiki/Billion%20laughs%20attack

Details

Source: Mitre, NVD

Published: 2019-12-12

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 7.5

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

Severity: High