SUSE-RU-2023:2301-1: moderate: Recommended update for cosign

Thu May 25 12:30:06 UTC 2023

# Recommended update for cosign

Announcement ID: SUSE-RU-2023:2301-1  
Rating: moderate  
References:

Affected Products:

  * Basesystem Module 15-SP4
  * openSUSE Leap 15.4
  * SUSE Linux Enterprise Desktop 15 SP4
  * SUSE Linux Enterprise High Performance Computing 15 SP4
  * SUSE Linux Enterprise Real Time 15 SP4
  * SUSE Linux Enterprise Server 15 SP4
  * SUSE Linux Enterprise Server for SAP Applications 15 SP4
  * SUSE Manager Proxy 4.3
  * SUSE Manager Retail Branch Server 4.3
  * SUSE Manager Server 4.3

An update that contains one feature can now be installed.

## Description:

This update for cosign fixes the following issues:

cosign was updated to 2.0.1 (jsc#SLE-23879)

  * Enhancements

  * Add environment variable token provider (#2864)

  * Remove cosign policy command (#2846)
  * Allow customising 'go' executable with GOEXE var (#2841)
  * Consistent tlog warnings during verification (#2840)
  * Add riscv64 arch (#2821)
  * Default generated PEM labels to SIGSTORE (#2735)
  * Update privacy statement and confirmation (#2797)
  * Add exit codes for verify errors (#2766)
  * Add Buildkite provider (#2779)
  * verify-blob-attestation: Loosen arg requirements if --check-claims=false
    (#2746)

  * Bug Fixes

  * PKCS11 sessions are now opened read only (#2853)

  * Makefile: date format of log should not show signatures (#2835)
  * Add missing flags to cosign verify dockerfile/manifest (#2830)
  * Add a warning to remember how to configure a custom Gitlab host (#2816)
  * Remove tag warning message from save/copy commands (#2799)
  * Mark keyless pem files with b64 (#2671)

  * build against a maintained golang version (upstream uses go1.20)

cosign was updated to 2.0.0 (jsc#SLE-23879)

  * Breaking Changes:

  * insecure-skip-tlog-verify: rename and adapt the cert expiration check
    (#2620)

  * Deprecate --certificate-email flag. Make --certificate-identity and -…
    (#2411)

  * Enhancements:

  * Change go module name to github.com/sigstore/cosign/v2 for Cosign 2.0
    (#2544)

  * Allow users to pass in a path for the --identity-token flag (#2538)
  * Breaking change: Respect tlog-upload=false, default to true (#2505)
  * Support outputing a certificate without uploading to the tlog (#2506)
  * Attestation/Blob signing and verification using a RFC3161 time-stamping
    server (#2464)
  * respect tlog-upload flag with TSA (#2474)
  * Better feedback if specifying incompatible argument on cosign sign
    --attachment (#2449)
  * Support TSA and Rekor verifications (#2463)
  * add support for tsa signing and verification of images (#2460)
  * cosign policy sign: remove experimental flag and make keyless signing
    default (#2459)
  * Remove experimental mode from cosign attest and verify-attestation (#2458)
  * Remove experimental mode from sign-blob and verify-blob (#2457)
  * Add --offline flag to force offline verification (#2427)
  * Air gap support (#2299)
  * Breaking change: Change SCT verification behavior to default to enforcement
    (#2400)
  * Breaking change: remove --force flag from sign and attest and rely on --yes
    flag to skip confirmation (#2399)
  * Breaking change: replace --no-tlog-upload flag with --tlog-upload flag
    (#2397)
  * Remove experimental flag from cosign sign and cosign verify (#2387)
  * verify: remove SIGSTORE_TRUST_REKOR_API_PUBLIC_KEY test env var for using a
    key from rekor's API (#2362)
  * Add warning to use digest instead of tags to other cosign commands (#2650)
  * Fix up UI messages (#2629)
  * Remove hardcoded Fulcio from output (#2621)
  * Fix missing privacy statement, print in multiple locations (#2622)
  * feat: allows custom key names for import-key-pair (#2587)
  * feat: support keyless verification for verify-blob-attestation (#2525)
  * attest-blob: add functionality for keyless signing (#2515)
  * Rego: add support for custom error/warning messages when evaluating rego
    rules (#2577)
  * feat: add debug information to cert validation error (#2579)
  * Support non-Sigstore TSA requests (#2708)
  * Add COSIGN_OCI_EXPERIMENTAL, push .sig/.sbom using OCI 1.1+ digest tag
    (#2684)
  * Output certificate in bundle when entry is not uploaded to Rekor (#2715)
  * attach signature and attach sbom must use STDIN to upload raw string (#2637)
  * add generate-key-pair GitHub Enterprise server support (#2676)
  * add in format string for warning (#2699)
  * Support for fetching Fulcio certs with self-managed key (#2532)
  * 2476 predicate type download (#2484)

  * Bug Fixes:

  * Fix the file existence check. (#2552)

  * Fix timestamp verification, add verify-blob tests (#2527)
  * Fix(verify): Consolidate certificate expiry logic (#2504)
  * Updates to Timestamp signing and verification (#2499)
  * Fix: removes attestation payload from attest-blob's output & no base64
    encoding (#2498)
  * Fix path for e2e-tests badge (#2490)
  * Fix spdx json media type (#2479)
  * Fix sct verificaction (#2426)
  * Fix: panic with unsigned local image (#2656)
  * Make sure a cert passed in via --cert matches the bundle cert (#2652)
  * Fix: fix github oidc post submit test (#2594)
  * Fix: add enhanced error messages for failing verification with TUF targets
    (#2589)
  * Fix: Add missing schemes to cosign predicate types. (#2717)
  * Fix: Drop the CosignPredicate wrapper around SBOM attestations. (#2718)
  * Fix prompts with Windows line endings (#2674)

cosing was update to 1.13.1:

  * verify-blob-attestation: allow multiple subjects in in_toto attestation
    (#2341)
  * Nits for #2337 (#2342)
  * Add verify-blob-attestation command and tests (#2337)
  * Update warning when users sign images by tag. (#2313)
  * Remove experimental flags from attest-blob and refactor (#2338)
  * Add --output-attestation flag to attest-blob and remove experimental signing
    (#2332)
  * Add attest-blob command (#2286)
  * Add '\--cert-identity' flag to support subject alternate names for ver…
    (#2278)
  * Update Dockerfile section of README (#2323)
  * Fix option description: "sign" \--> "verify" (#2306)

cosign was updated to 1.13.0:

  * feat: use stdin as an input for predicate by @developer-guy in
    https://github.com/sigstore/cosign/pull/2269
  * feat: improve the verification message by @developer-guy in
    https://github.com/sigstore/cosign/pull/2268
  * use scaffolding 0.4.8 for tests. by @vaikas in
    https://github.com/sigstore/cosign/pull/2280
  * fix pivtool generate key touch policy by @cpanato in
    https://github.com/sigstore/cosign/pull/2282
  * Check error on chain verification failure by @haydentherapper in
    https://github.com/sigstore/cosign/pull/2284
  * Fix: Remove an extra registry request from verification path. by @mattmoor
    in https://github.com/sigstore/cosign/pull/2285
  * Fix: Create a static copy of signatures as part of verification. by
    @mattmoor in https://github.com/sigstore/cosign/pull/2287
  * Data race in FetchSignaturesForReference by @RTann in
    https://github.com/sigstore/cosign/pull/2283
  * Add support for Fulcio username identity in SAN by @haydentherapper in
    https://github.com/sigstore/cosign/pull/2291
  * fix: make tlog entry lookups for online verification shard-aware by @asraa
    in https://github.com/sigstore/cosign/pull/2297
  * Better help text to sign and verify SBOM by @ChristianCiach in
    https://github.com/sigstore/cosign/pull/2308
  * Adding warning to pin to digest by @ChaosInTheCRD in
    https://github.com/sigstore/cosign/pull/2311
  * Add annotations for upload blob. by @cldmnky in
    https://github.com/sigstore/cosign/pull/2188
  * replace deprecate package by @cpanato in
    https://github.com/sigstore/cosign/pull/2314
  * update release images to use go1.19.2 and cosign v1.12.1 by @cpanato in
    https://github.com/sigstore/cosign/pull/2315

cosign was updated to 1.12.1:

  * fix: Pulls Fulcio root and intermediate when --certificate-chain is not
    passed into verify-blob command. The v1.12.0 release introduced a
    regression: when COSIGN_EXPERIMENTAL was not set, cosign verify-blob would
    check a --certificate (without a --certificate-chain provided) against the
    operating system root CA bundle. In this release, Cosign checks the
    certificate against Fulcio's CA root instead (restoring the earlier
    behavior).
  * fix: fix cert chain validation for verify-blob in non-experimental mode
  * fix: add COSIGN_EXPERIMENTAL=1 for verify-bloba
  * Fix BYO-root with intermediate to fetch intermediates from annotation
  * fix: fixing breaking changes in rekor v1.12.0 upgrade

## Patch Instructions:

To install this SUSE Moderate update use the SUSE recommended installation
methods like YaST online_update or "zypper patch".  
Alternatively you can run the command listed for your product:

  * openSUSE Leap 15.4  
    zypper in -t patch openSUSE-SLE-15.4-2023-2301=1

  * Basesystem Module 15-SP4  
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP4-2023-2301=1

## Package List:

  * openSUSE Leap 15.4 (aarch64 ppc64le s390x x86_64)
    * cosign-2.0.1-150400.3.9.1
  * Basesystem Module 15-SP4 (aarch64 ppc64le s390x x86_64)
    * cosign-2.0.1-150400.3.9.1

## References:

  * https://jira.suse.com/browse/SLE-23879

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