SIF's Digital Signature Hash Algorithms Not Validated

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
• CVE-2005-4900

For more information

If you have any questions or comments about this advisory:

• Open an issue in github.com/sylabs/sif
• Email us at [email protected]