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bdu:2021-04699

cnvd-2021-36221

EUVD-2026-26384

fkie_cve-2021-29499

SIF is an open source implementation of the Singularity Container Image Format. The `siftool new` command and func siftool.New() produce predictable UUID identifiers due to insecure randomness in the version of the `github.com/satori/go.uuid` module used as a dependency. A patch is available in version >= v1.2.3 of the module. Users are encouraged to upgrade. As a workaround, users passing CreateInfo struct should ensure the `ID` field is generated using a version of `github.com/satori/go.uuid` that is not vulnerable to this issue.

GHSA-4gh8-x3vv-phhg — Predictable SIF UUID Identifiers in github.com/sylabs/sif

Affected: Go: github.com/sylabs/sif

### Impact

The `siftool new` command and [func siftool.New()](https://pkg.go.dev/github.com/sylabs/sif/pkg/siftool#New) produce predictable UUID identifiers due to insecure randomness in the version of the `github.com/satori/go.uuid` module used as a dependency.

### Patches

A patch is available in version >= v1.2.3 of the module. Users are encouraged to upgrade.

The patch is commit https://github.com/sylabs/sif/commit/193962882122abf85ff5f5bcc86404933e71c07d

### Workarounds Users passing [CreateInfo struct](https://pkg.go.dev/github.com/sylabs/sif/pkg/sif#CreateInfo) should ensure the `ID` field is generated using a version of `github.com/satori/go.uuid` that is not vulnerable to this issue. Unfortunately, the latest tagged release is vulnerable to this issue. One way to obtain a non-vulnerable version is:

``` go get github.com/satori/go.uuid@75cca531ea763666bc46e531da3b4c3b95f64557 ```

### References * https://github.com/satori/go.uuid/issues/73

### For more information If you have any questions or comments about this advisory: * Open an issue in [github.com/sylabs/sif](https://github.com/sylabs/sif/issues/new) * Email us at [security@sylabs.io](mailto:security@sylabs.io)

gsd-2021-29499

UBUNTU-CVE-2021-29499

Affected: Ubuntu:Pro:18.04:LTS: singularity-container, Ubuntu:20.04:LTS: golang-github-sylabs-sif, Ubuntu:22.04:LTS: golang-github-sylabs-sif, Ubuntu:24.04:LTS: golang-github-sylabs-sif, Ubuntu:Pro:24.04:LTS: singularity-container, Ubuntu:25.10: golang-github-sylabs-sif, Ubuntu:25.10: singularity-container, Ubuntu:26.04:LTS: singularity-container, Ubuntu:Pro:26.04:LTS: golang-github-sylabs-sif