CVE-2022-35929

2022-08-0805:31:39

redhat.com

access.redhat.com

cosign package

false positive

attestation verification

valid signature

keyless signing

fulcio

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.002

Percentile

64.4%

JSON

A flaw was found in the cosign package. The cosign verify-attestation used with the --type flag will report a false positive verification when there is at least one attestation with a valid signature and when there are no attestations of the type being verified (for example, —type defaults to “custom”). This issue can happen when signing with a standard keypair and keyless signing with Fulcio.