Vulnerability Instance
Lookup for vulnerabilities affecting packages.
GET /api/vulnerabilities/48516?format=api
{ "url": "http://public2.vulnerablecode.io/api/vulnerabilities/48516?format=api", "vulnerability_id": "VCID-qz7w-3qvp-ykan", "summary": "Path traversal and files overwrite with unsquashfs in singularity\n### Impact\n\nDue to insecure handling of path traversal and the lack of path sanitization within `unsquashfs` (a distribution provided utility used by Singularity), it is possible to overwrite/create any files on the host filesystem during the extraction of a crafted squashfs filesystem.\n\nSquashfs extraction occurs automatically for unprivileged execution of Singularity (either `--without-suid` installation or with `allow setuid = no`) when a user attempts to run an image which:\n\n- is a local SIF image or a single file containing a squashfs filesystem\n- is pulled from remote sources `library://` or `shub://`\n\nImage build is also impacted in a more serious way as it is often performed by the root user, allowing an attacker to overwrite/create files leading to a system compromise. Bootstrap methods `library`, `shub` and `localimage` trigger a squashfs extraction.\n\n### Patches\n\nThis issue is addressed in Singularity 3.6.4.\n\nAll users are advised to upgrade to 3.6.4 especially if they use Singularity mainly for building image as root user.\n\n### Workarounds\n\nThere is no solid workaround except to temporarily avoid use of unprivileged mode with single file images, in favor of sandbox images instead. Regarding image build, temporarily avoid building from `library` and `shub` sources, and as much as possible use `--fakeroot` or a VM to limit potential impact.\n\n### For more information\n\nGeneral questions about the impact of the advisory / changes made in the 3.6.0 release can be asked in the:\n\n* [Singularity Slack Channel](https://bit.ly/2m0g3lX)\n* [Singularity Mailing List](https://groups.google.com/a/lbl.gov/forum/??sdf%7Csort:date#!forum/singularity)\n\nAny sensitive security concerns should be directed to: security@sylabs.io\n\nSee our Security Policy here: https://sylabs.io/security-policy", "aliases": [ { "alias": "CVE-2020-15229" }, { "alias": "GHSA-7gcp-w6ww-2xv9" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/969848?format=api", "purl": "pkg:apk/alpine/singularity@3.6.4-r0?arch=x86&distroversion=v3.23&reponame=community", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:apk/alpine/singularity@3.6.4-r0%3Farch=x86&distroversion=v3.23&reponame=community" }, { "url": "http://public2.vulnerablecode.io/api/packages/490003?format=api", "purl": "pkg:apk/alpine/singularity@3.6.4-r0?arch=armv7&distroversion=edge&reponame=community", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:apk/alpine/singularity@3.6.4-r0%3Farch=armv7&distroversion=edge&reponame=community" }, { "url": "http://public2.vulnerablecode.io/api/packages/490004?format=api", "purl": "pkg:apk/alpine/singularity@3.6.4-r0?arch=loongarch64&distroversion=edge&reponame=community", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:apk/alpine/singularity@3.6.4-r0%3Farch=loongarch64&distroversion=edge&reponame=community" }, { "url": "http://public2.vulnerablecode.io/api/packages/490008?format=api", "purl": 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"http://public2.vulnerablecode.io/packages/pkg:apk/alpine/singularity@3.6.4-r0%3Farch=aarch64&distroversion=v3.21&reponame=community" }, { "url": "http://public2.vulnerablecode.io/api/packages/969792?format=api", "purl": "pkg:apk/alpine/singularity@3.6.4-r0?arch=armv7&distroversion=v3.21&reponame=community", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:apk/alpine/singularity@3.6.4-r0%3Farch=armv7&distroversion=v3.21&reponame=community" }, { "url": "http://public2.vulnerablecode.io/api/packages/969794?format=api", "purl": "pkg:apk/alpine/singularity@3.6.4-r0?arch=ppc64le&distroversion=v3.21&reponame=community", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:apk/alpine/singularity@3.6.4-r0%3Farch=ppc64le&distroversion=v3.21&reponame=community" }, { "url": "http://public2.vulnerablecode.io/api/packages/969795?format=api", "purl": 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"http://public2.vulnerablecode.io/packages/pkg:apk/alpine/singularity@3.6.4-r0%3Farch=ppc64le&distroversion=v3.23&reponame=community" }, { "url": "http://public2.vulnerablecode.io/api/packages/1000684?format=api", "purl": "pkg:apk/alpine/singularity@3.6.4-r0?arch=riscv64&distroversion=v3.22&reponame=community", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:apk/alpine/singularity@3.6.4-r0%3Farch=riscv64&distroversion=v3.22&reponame=community" }, { "url": "http://public2.vulnerablecode.io/api/packages/1007278?format=api", "purl": "pkg:apk/alpine/singularity@3.6.4-r0?arch=s390x&distroversion=v3.20&reponame=community", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:apk/alpine/singularity@3.6.4-r0%3Farch=s390x&distroversion=v3.20&reponame=community" }, { "url": "http://public2.vulnerablecode.io/api/packages/1007279?format=api", "purl": 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"http://public2.vulnerablecode.io/packages/pkg:apk/alpine/singularity@3.6.4-r0%3Farch=x86_64&distroversion=v3.22&reponame=community" }, { "url": "http://public2.vulnerablecode.io/api/packages/1007275?format=api", "purl": "pkg:apk/alpine/singularity@3.6.4-r0?arch=armv7&distroversion=v3.20&reponame=community", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:apk/alpine/singularity@3.6.4-r0%3Farch=armv7&distroversion=v3.20&reponame=community" }, { "url": "http://public2.vulnerablecode.io/api/packages/984200?format=api", "purl": "pkg:apk/alpine/singularity@3.6.4-r0?arch=ppc64le&distroversion=v3.19&reponame=community", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:apk/alpine/singularity@3.6.4-r0%3Farch=ppc64le&distroversion=v3.19&reponame=community" }, { "url": "http://public2.vulnerablecode.io/api/packages/969793?format=api", "purl": 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"http://public2.vulnerablecode.io/packages/pkg:apk/alpine/singularity@3.6.4-r0%3Farch=aarch64&distroversion=v3.22&reponame=community" }, { "url": "http://public2.vulnerablecode.io/api/packages/1000680?format=api", "purl": "pkg:apk/alpine/singularity@3.6.4-r0?arch=armhf&distroversion=v3.22&reponame=community", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:apk/alpine/singularity@3.6.4-r0%3Farch=armhf&distroversion=v3.22&reponame=community" }, { "url": "http://public2.vulnerablecode.io/api/packages/1000681?format=api", "purl": "pkg:apk/alpine/singularity@3.6.4-r0?arch=armv7&distroversion=v3.22&reponame=community", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:apk/alpine/singularity@3.6.4-r0%3Farch=armv7&distroversion=v3.22&reponame=community" }, { "url": "http://public2.vulnerablecode.io/api/packages/1000685?format=api", "purl": 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"http://public2.vulnerablecode.io/packages/pkg:apk/alpine/singularity@3.6.4-r0%3Farch=aarch64&distroversion=edge&reponame=community" }, { "url": "http://public2.vulnerablecode.io/api/packages/490002?format=api", "purl": "pkg:apk/alpine/singularity@3.6.4-r0?arch=armhf&distroversion=edge&reponame=community", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:apk/alpine/singularity@3.6.4-r0%3Farch=armhf&distroversion=edge&reponame=community" }, { "url": "http://public2.vulnerablecode.io/api/packages/490006?format=api", "purl": "pkg:apk/alpine/singularity@3.6.4-r0?arch=riscv64&distroversion=edge&reponame=community", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:apk/alpine/singularity@3.6.4-r0%3Farch=riscv64&distroversion=edge&reponame=community" }, { "url": "http://public2.vulnerablecode.io/api/packages/490007?format=api", "purl": 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