{"schema_version":"1.9.0","id":"BIT-oras-2021-21272","published":"2024-03-06T11:00:05.176Z","modified":"2026-09-08T08:48:24.578280213Z","aliases":["CVE-2021-21272","GHSA-g5v4-5x39-vwhx","GO-2021-0099"],"summary":"zip slip in ORAS","details":"ORAS is open source software which enables a way to push OCI Artifacts to OCI Conformant registries. ORAS is both a CLI for initial testing and a Go Module. In ORAS from version 0.4.0 and before version 0.9.0, there is a \"zip-slip\" vulnerability. The directory support feature allows the downloaded gzipped tarballs to be automatically extracted to the user-specified directory where the tarball can have symbolic links and hard links. A well-crafted tarball or tarballs allow malicious artifact providers linking, writing, or overwriting specific files on the host filesystem outside of the user-specified directory unexpectedly with the same permissions as the user who runs `oras pull`. Users of the affected versions are impacted if they are `oras` CLI users who runs `oras pull`, or if they are Go programs, which invoke `github.com/deislabs/oras/pkg/content.FileStore`. The problem has been fixed in version 0.9.0. For `oras` CLI users, there is no workarounds other than pulling from a trusted artifact provider. For `oras` package users, the workaround is to not use `github.com/deislabs/oras/pkg/content.FileStore`, and use other content stores instead, or pull from a trusted artifact provider.","affected":[{"package":{"name":"oras","ecosystem":"Bitnami","purl":"pkg:bitnami/oras"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0.4.0"},{"fixed":"0.9.0"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/oras/BIT-oras-2021-21272.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N"}]}],"references":[{"type":"FIX","url":"https://github.com/deislabs/oras/commit/96cd90423303f1bb42bd043cb4c36085e6e91e8e"},{"type":"ARTICLE","url":"https://github.com/deislabs/oras/releases/tag/v0.9.0"},{"type":"ADVISORY","url":"https://github.com/deislabs/oras/security/advisories/GHSA-g5v4-5x39-vwhx"},{"type":"ADVISORY","url":"https://pkg.go.dev/github.com/deislabs/oras/pkg/oras"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21272"}],"database_specific":{"cpes":["cpe:2.3:a:deislabs:oras:*:*:*:*:*:*:*:*"],"severity":"High"}}