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CLEANSTART-2024-TO97998 — syslabs/sif is the Singularity Image Format (SIF) reference implementation

Affected: CleanStart: apptainer

Security vulnerability affects the apptainer package. syslabs/sif is the Singularity Image Format (SIF) reference implementation.

cnvd-2022-87947

EUVD-2026-233543

fkie_cve-2022-39237

syslabs/sif is the Singularity Image Format (SIF) reference implementation. In versions prior to 2.8.1the `github.com/sylabs/sif/v2/pkg/integrity` package did not verify that the hash algorithm(s) used are cryptographically secure when verifying digital signatures. A patch is available in version >= v2.8.1 of the module. Users are encouraged to upgrade. Users unable to upgrade may independently validate that the hash algorithm(s) used for metadata digest(s) and signature hash are cryptographically secure.

GHSA-m5m3-46gj-wch8 — SIF's Digital Signature Hash Algorithms Not Validated

Affected: Go: github.com/sylabs/sif/v2

### Impact

The `github.com/sylabs/sif/v2/pkg/integrity` package does not verify that the hash algorithm(s) used are cryptographically secure when verifying digital signatures.

### Patches

A patch is available in version >= v2.8.1 of the module. Users are encouraged to upgrade.

The patch is commit https://github.com/sylabs/sif/commit/07fb86029a12e3210f6131e065570124605daeaa

### Workarounds

Users may independently validate that the hash algorithm(s) used for metadata digest(s) and signature hash are cryptographically secure.

### References

* [CVE-2004-2761](https://nvd.nist.gov/vuln/detail/cve-2004-2761) * [CVE-2005-4900](https://nvd.nist.gov/vuln/detail/cve-2005-4900)

### 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-2022-39237

openSUSE-SU-2023:0018-1 — Security update for apptainer

Security update for apptainer

UBUNTU-CVE-2022-39237

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:Pro:24.04:LTS: singularity-container, Ubuntu:25.10: singularity-container, Ubuntu:26.04:LTS: singularity-container