Provide references for CVE-2017-18640.
Where can I find more information about CVE-2017-18640?
References are available at: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CKN7VGIKTYBCAKYBRG55QHXAY5UDZ7HA/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PTVJC54XGX26UJVVYCXZ7D25X3R5T2G6/, https://lists.apache.org/thread.html/r8b57c57cffa01e418868a3c7535b987635ff1fb5ab534203bfa2d64a%40%3Ccommits.pulsar.apache.org%3E, https://lists.apache.org/thread.html/rb34d8d3269ad47a1400f5a1a2d8310e13a80b6576ebd7f512144198d%40%3Ccommon-dev.hadoop.apache.org%3E, https://lists.apache.org/thread.html/r8464b6ec951aace8c807bac9ea526d4f9e3116aa16d38be06f7c6524%40%3Ccommon-issues.hadoop.apache.org%3E, https://lists.apache.org/thread.html/r643ba53f002ae59068f9352fe1d82e1b6f375387ffb776f13efe8fda%40%3Ccommon-issues.hadoop.apache.org%3E, https://lists.apache.org/thread.html/r2b05744c0c2867daa5d1a96832965b7d6220328b0ead06c22a6e7854%40%3Ccommits.pulsar.apache.org%3E, https://lists.apache.org/thread.html/r6c91e52b3cc9f4e64afe0f34f20507143fd1f756d12681a56a9b38da%40%3Ccommits.pulsar.apache.org%3E, https://lists.apache.org/thread.html/r72a3588d62b2de1361dc9648f5d355385735e47f7ba49d089b0e680d%40%3Ccommon-issues.hadoop.apache.org%3E, https://lists.apache.org/thread.html/r1dfac8b6a7097bcb4979402bbb6e2f8c36d0d9001e3018717eb22b7e%40%3Cdev.atlas.apache.org%3E, https://lists.apache.org/thread.html/rb0e033d5ec8233360203431ad96580cf2ec56f47d9a425d894e279c2%40%3Cpr.cassandra.apache.org%3E, https://lists.apache.org/thread.html/r2a5b84fdf59042dc398497e914b5bb1aed77328320b1438144ae1953%40%3Cdev.atlas.apache.org%3E, https://lists.apache.org/thread.html/r6d54c2da792c74cc14b9b7665ea89e144c9e238ed478d37fd56292e6%40%3Cdev.atlas.apache.org%3E, https://lists.apache.org/thread.html/r666f29a7d0e1f98fa1425ca01efcfa86e6e3856e01d300828aa7c6ea%40%3Ccommits.pulsar.apache.org%3E, https://lists.apache.org/thread.html/r154090b871cf96d985b90864442d84eb027c72c94bc3f0a5727ba2d1%40%3Ccommon-issues.hadoop.apache.org%3E, https://lists.apache.org/thread.html/r28c9009a48d52cf448f8b02cd823da0f8601d2dff4d66f387a35f1e0%40%3Cdev.atlas.apache.org%3E, https://lists.apache.org/thread.html/rb7b28ac741e32dd5edb2c22485d635275bead7290b056ee56baf8ce0%40%3Cdev.atlas.apache.org%3E, https://lists.apache.org/thread.html/re791a854001ec1f79cd4f47328b270e7a1d9d7056debb8f16d962722%40%3Cdev.atlas.apache.org%3E, https://lists.apache.org/thread.html/rce5c93bba6e815fb62ad38e28ca1943b3019af1eddeb06507ad4e11a%40%3Ccommits.atlas.apache.org%3E, https://lists.apache.org/thread.html/r5510f0125ba409fc1cabd098ab8b457741e5fa314cbd0e61e4339422%40%3Cdev.atlas.apache.org%3E, https://lists.apache.org/thread.html/r2db207a2431a5e9e95e899858ab1f5eabd9bcc790a6ca7193ae07e94%40%3Cdev.atlas.apache.org%3E, https://lists.apache.org/thread.html/r1058e7646988394de6a3fd0857ea9b1ee0de14d7bb28fee5ff782457%40%3Ccommits.atlas.apache.org%3E, https://lists.apache.org/thread.html/re851bbfbedd47c690b6e01942acb98ee08bd00df1a94910b905bc8cd%40%3Cdev.atlas.apache.org%3E, https://lists.apache.org/thread.html/r56805265475919252ba7fc10123f15b91097f3009bae86476624ca25%40%3Ccommits.cassandra.apache.org%3E, https://lists.apache.org/thread.html/rbaa1f513d903c89a08267c91d86811fa5bcc82e0596b6142c5cea7ea%40%3Ccommits.cassandra.apache.org%3E, https://lists.apache.org/thread.html/reb1751562ee5146d3aca654a2df76a2c13d8036645ce69946f9c219e%40%3Ccommits.cassandra.apache.org%3E, https://lists.apache.org/thread.html/r1ffce2ed3017e9964f03ad2c539d69e49144fc8e9bf772d641612f98%40%3Ccommits.cassandra.apache.org%3E, https://lists.apache.org/thread.html/rc3211c71f7e0973a1825d1988a3921288c06cd9d793eae97ecd34948%40%3Ccommits.cassandra.apache.org%3E, https://lists.apache.org/thread.html/r55d807f31e64a080c54455897c20b1667ec792e5915132c7b7750533%40%3Ccommits.cassandra.apache.org%3E, https://lists.apache.org/thread.html/recfe569f4f260328b0036f1c82b2956e864d519ab941a5e75d0d832d%40%3Ccommits.cassandra.apache.org%3E, https://lists.apache.org/thread.html/rf95bebee6dfcc55067cebe8482bd31e6f481d9f74ba8e03f860c3ec7%40%3Ccommits.cassandra.apache.org%3E, https://lists.apache.org/thread.html/r1703a402f30c8a2ee409f8c6f393e95a63f8c952cc9ee5bf9dd586dc%40%3Ccommits.cassandra.apache.org%3E, https://lists.apache.org/thread.html/r191ceadb1b883357384981848dfa5235cb02a90070c553afbaf9b3d9%40%3Ccommits.cassandra.apache.org%3E, https://lists.apache.org/thread.html/r20350031c60a77b45e0eded33e9b3e9cb0cbfc5e24e1c63bf264df12%40%3Ccommits.cassandra.apache.org%3E, https://lists.apache.org/thread.html/rd582c64f66c354240290072f340505f5d026ca944ec417226bb0272e%40%3Ccommits.cassandra.apache.org%3E, https://lists.apache.org/thread.html/rb5c33d0069c927fae16084f0605895b98d231d7c48527bcb822ac48c%40%3Ccommits.cassandra.apache.org%3E, https://lists.apache.org/thread.html/rcb4b61dbe2ed1c7a88781a9aff5a9e7342cc7ed026aec0418ee67596%40%3Ccommon-issues.hadoop.apache.org%3E, https://lists.apache.org/thread.html/raebd2019b3da8c2f90f31e8b203b45353f78770ca93bfe5376f5532e%40%3Ccommon-issues.hadoop.apache.org%3E, https://lists.apache.org/thread.html/r4d7f37da1bc2df90a5a0f56eb7629b5ea131bfe11eeeb4b4c193f64a%40%3Ccommon-issues.hadoop.apache.org%3E, https://lists.apache.org/thread.html/r22ac2aa053b7d9c6b75a49db78125c9316499668d0f4a044f3402e2f%40%3Ccommon-issues.hadoop.apache.org%3E, https://lists.apache.org/thread.html/r1aab47b48a757c70e40fc0bcb1fcf1a3951afa6a17aee7cd66cf79f8%40%3Ccommon-commits.hadoop.apache.org%3E, https://lists.apache.org/thread.html/rcb2a7037366c58bac6aec6ce3df843a11ef97ae4eb049f05f410eaa5%40%3Ccommon-commits.hadoop.apache.org%3E, https://lists.apache.org/thread.html/r436988d2cfe8a770ae361c82b181c5b2bf48a249bad84d8a55a3b46e%40%3Cdev.phoenix.apache.org%3E, https://lists.apache.org/thread.html/r7ce3de03facf7e7f3e24fc25d26d555818519dafdb20f29398a3414b%40%3Cdev.phoenix.apache.org%3E, https://www.oracle.com/security-alerts/cpuApr2021.html, https://bitbucket.org/asomov/snakeyaml/issues/377/allow-configuration-for-preventing-billion, https://mvnrepository.com/artifact/org.yaml/snakeyaml/1.25/usages, https://bitbucket.org/asomov/snakeyaml/wiki/Billion%20laughs%20attack, https://lists.apache.org/thread.html/r4c682fb8cf69dd14162439656a6ebdf42ea6ad0e4edba95907ea3f14%40%3Ccommits.servicecomb.apache.org%3E, https://lists.apache.org/thread.html/r900e020760c89f082df1c6e0d46320eba721e4e47bb9eb521e68cd95%40%3Ccommits.servicecomb.apache.org%3E, https://lists.apache.org/thread.html/r2721aba31a8562639c4b937150897e24f78f747cdbda8641c0f659fe%40%3Cusers.kafka.apache.org%3E, https://lists.apache.org/thread.html/r16ae4e529401b75a1f5aa462b272b31bf2a108236f882f06fddc14bc%40%3Ccommon-issues.hadoop.apache.org%3E, https://lists.apache.org/thread.html/rfe0aab6c3bebbd9cbfdedb65ff3fdf420714bcb8acdfd346077e1263%40%3Ccommon-commits.hadoop.apache.org%3E, https://lists.apache.org/thread.html/r182e9cf6f3fb22b9be0cac4ff0685199741d2ab6e9a4e27a3693c224%40%3Ccommon-issues.hadoop.apache.org%3E, https://lists.apache.org/thread.html/rdd34c0479587e32a656d976649409487d51ca0d296b3e26b6b89c3f5%40%3Ccommon-commits.hadoop.apache.org%3E, https://lists.apache.org/thread.html/r465d2553a31265b042cf5457ef649b71e0722ab89b6ea94a5d59529b%40%3Ccommon-issues.hadoop.apache.org%3E, https://bitbucket.org/snakeyaml/snakeyaml/wiki/Changes, https://bitbucket.org/snakeyaml/snakeyaml/issues/377, https://security.gentoo.org/glsa/202305-28.