{"id":"GHSA-m43h-hfrq-x8wx","summary":"SystemDS CPU exhaustion vulnerability","details":"The Security Team noticed that the termination condition of the for loop in the readExternal method is a controllable variable, which, if tampered with, may lead to CPU exhaustion. As a fix, we added an upper bound and termination condition in the read and write logic. We classify it as a \"low-priority but useful improvement\". SystemDS is a distributed system and needs to serialize/deserialize data but in many code paths (e.g., on Spark broadcast/shuffle or writing to sequence files) the byte stream is anyway protected by additional CRC fingerprints. In this particular case though, the number of decoders is upper-bounded by twice the number of columns, which means an attacker would need to modify two entries in the byte stream in a consistent manner. By adding these checks robustness was strictly improved with almost zero overhead. These code changes are available in versions higher than 2.2.1.","aliases":["CVE-2022-26477","PYSEC-2022-222"],"modified":"2024-10-28T14:52:54.896159Z","published":"2022-06-28T00:00:48Z","database_specific":{"cwe_ids":["CWE-400"],"nvd_published_at":"2022-06-27T18:15:00Z","github_reviewed_at":"2022-07-05T22:06:14Z","github_reviewed":true,"severity":"HIGH"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-26477"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-m43h-hfrq-x8wx"},{"type":"PACKAGE","url":"https://github.com/apache/systemds"},{"type":"WEB","url":"https://github.com/pypa/advisory-database/tree/main/vulns/systemds/PYSEC-2022-222.yaml"},{"type":"WEB","url":"https://lists.apache.org/thread/r4x2d2r6d4zykdrrx6s2l4qbxgzws0z3"},{"type":"WEB","url":"https://security.netapp.com/advisory/ntap-20220812-0003"}],"affected":[{"package":{"name":"org.apache.systemds:systemds","ecosystem":"Maven","purl":"pkg:maven/org.apache.systemds/systemds"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.2"}]}],"versions":["2.0.0","2.1.0","2.2.0","2.2.1"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/06/GHSA-m43h-hfrq-x8wx/GHSA-m43h-hfrq-x8wx.json"}},{"package":{"name":"systemds","ecosystem":"PyPI","purl":"pkg:pypi/systemds"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.2"}]}],"versions":["0.2.0","2.0.0","2.0.1","2.1.0","2.2.0","2.2.1"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/06/GHSA-m43h-hfrq-x8wx/GHSA-m43h-hfrq-x8wx.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}]}