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security advisorymoderateOpenSUSEopenSUSE 15.4 Cosign Moderate Attestation Verification Issue 2026-2365-1
An update that solves one vulnerability can now be installed.. # Security update for cosign Announcement ID: SUSE-SU-2026:2365-1 Release Date: 2026-06-11T07:58:20Z Rating: moderate References: * bsc#1261859 Cross-References: * CVE-2026-39395 CVSS scores: * CVE-2026-39395 ( SUSE ): 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N * CVE-2026-39395 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N * CVE-2026-39395 ( NVD ): 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N * CVE-2026-39395 ( NVD ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Affected Products: * Basesystem Module 15-SP7 * openSUSE Leap 15.4 * SUSE Linux Enterprise Desktop 15 SP7 * SUSE Linux Enterprise Real Time 15 SP7 * SUSE Linux Enterprise Server 15 SP7 * SUSE Linux Enterprise Server for SAP Applications 15 SP7 An update that solves one vulnerability can now be installed. ## Description: This update for cosign fixes the following issue * CVE-2026-39395: Incorrect attestation verification due to malformed payloads or mismatched predicate types (bsc#1261859). Changes for cosign: * update to 3.0.6: * Fix DSSE predicate check (GHSA-w6c6-c85g-mmv6) (#4801) * Handle whitespace-only certificate annotation (#4760) * fix(sign): closing SignerVerifier too early when signing with a security key (#4761) * Disallow --new-bundle-format and --rfc3161-timestamp (#4762) * support managed keys in conformance testing (#4728) * Add support for GCE metadata server env var (#4732) * fix: preserve per-layer annotations in WriteAttestationsReferrer (#4709) * Fix parsing of in-toto for string predicates * Mark batch of flags for deprecation (#4698) * disallow key and cert identity being used together during verification (#4636) * support key creation in GitLab group (#4704) * Set CGO_ENABLED=1 for fixing s390x failed build * build against a maintained golang version (upstream uses go1.20) ## Patch Instructions: To install thisSUSE 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 SUSE-2026-2365=1 * Basesystem Module 15-SP7 zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-2365=1 ## Package List: * openSUSE Leap 15.4 (aarch64 ppc64le s390x x86_64 i586) * cosign-3.0.6-150400.3.42.1 * cosign-debuginfo-3.0.6-150400.3.42.1 * openSUSE Leap 15.4 (noarch) * cosign-bash-completion-3.0.6-150400.3.42.1 * cosign-zsh-completion-3.0.6-150400.3.42.1 * cosign-fish-completion-3.0.6-150400.3.42.1 * Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64) * cosign-3.0.6-150400.3.42.1 * cosign-debuginfo-3.0.6-150400.3.42.1 * Basesystem Module 15-SP7 (noarch) * cosign-bash-completion-3.0.6-150400.3.42.1 * cosign-zsh-completion-3.0.6-150400.3.42.1 ## References: * https://www.suse.com/security/cve/CVE-2026-39395.html * https://bugzilla.suse.com/show_bug.cgi?id=1261859 . Update for cosign addresses a moderate risk vulnerability related to malformed payloads and verification issues.. openSUSE Cosign Update, Moderate Risk, Payload Vulnerability, Security Correction. . Severity: moderate. LinuxSecurity.com Team
Jun 11, 2026
•moderate
OpenSUSE
100
security advisorymoderate severitySUSESUSE 15 SP4/15 SP5: 2023:4870-1 moderate: cosign registry threat
* bsc#1216933 * jsc#SLE-23879 Cross-References: * CVE-2023-46737 . # Security update for cosign Announcement ID: SUSE-SU-2023:4870-1 Rating: moderate References: * bsc#1216933 * jsc#SLE-23879 Cross-References: * CVE-2023-46737 CVSS scores: * CVE-2023-46737 ( SUSE ): 3.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L * CVE-2023-46737 ( NVD ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Affected Products: * Basesystem Module 15-SP4 * Basesystem Module 15-SP5 * openSUSE Leap 15.4 * openSUSE Leap 15.5 * SUSE Linux Enterprise Desktop 15 SP4 * SUSE Linux Enterprise Desktop 15 SP5 * SUSE Linux Enterprise High Performance Computing 15 SP4 * SUSE Linux Enterprise High Performance Computing 15 SP5 * SUSE Linux Enterprise Real Time 15 SP4 * SUSE Linux Enterprise Real Time 15 SP5 * SUSE Linux Enterprise Server 15 SP4 * SUSE Linux Enterprise Server 15 SP5 * SUSE Linux Enterprise Server for SAP Applications 15 SP4 * SUSE Linux Enterprise Server for SAP Applications 15 SP5 * SUSE Manager Proxy 4.3 * SUSE Manager Retail Branch Server 4.3 * SUSE Manager Server 4.3 An update that solves one vulnerability and contains one feature can now be installed. ## Description: This update for cosign fixes the following issues: Updated to 2.2.1 (jsc#SLE-23879) * Enhancements: * CVE-2023-46737: Possible endless data attack from attacker-controlled registry (bsc#1216933) * feat: Support basic auth and bearer auth login to registry (#3310) * add support for ignoring certificates with pkcs11 (#3334) * Support ReplaceOp in Signatures (#3315) * feat: added ability to get image digest back via triangulate (#3255) * feat: add `--only` flag in `cosign copy` to copy sign, att & sbom (#3247) * feat: add support attaching a Rekor bundle to a container (#3246) * feat: add support outputting rekor response on signing (#3248) * feat: improve dockerfile verify subcommand (#3264) * Add guard flag for experimental OCI 1.1 verify. (#3272) * Deprecate SBOM attachments (#3256) * feat: dedent line in cosigncopy doc (#3244) * feat: add platform flag to cosign copy command (#3234) * Add SLSA 1.0 attestation support to cosign. Closes #2860 (#3219) * attest: pass OCI remote opts to att resolver. (#3225) * Bug Fixes: * Merge pull request from GHSA-vfp6-jrw2-99g9 * fix: allow cosign download sbom when image is absent (#3245) * ci: add a OCI registry test for referrers support (#3253) * Fix ReplaceSignatures (#3292) * Stop using deprecated in_toto.ProvenanceStatement (#3243) * Fixes #3236, disable SCT checking for a cosign verification when using.. (#3237) * fix: update error in `SignedEntity` to be more descriptive (#3233) * Fail timestamp verification if no root is provided (#3224) * Documentation: * Add some docs about verifying in an air-gapped environment (#3321) * Update CONTRIBUTING.md (#3268) * docs: improves the Contribution guidelines (#3257) * Remove security policy (#3230) * Others: * Set go to min 1.21 and update dependencies (#3327) * Update contact for code of conduct (#3266) * Update.ko.yaml (#3240) Updated to 2.2.0 (jsc#SLE-23879) * Enhancements * switch to uploading DSSE types to rekor instead of intoto (#3113) * add 'cosign sign' command-line parameters for mTLS (#3052) * improve error messages around bundle!= payload hash (#3146) * make VerifyImageAttestation function public (#3156) * Switch to cryptoutils function for SANS (#3185) * Handle HTTP_1_1_REQUIRED errors in github provider (#3172) * Bug Fixes * Fix nondeterminsitic timestamps (#3121) * Documentation * doc: Add example of sign-blob with key in env var (#3152) * add deprecation notice for cosign-releases GCS bucket (#3148) * update doc links (#3186) Updated to 2.1.1 (jsc#SLE-23879) * Bug Fixes * wait for the workers become available again to continue the execution (#3084) * fix help text when in a container (#3082) Updated to 2.1.0 (jsc#SLE-23879) * Breaking Change: The predicate is now a required flag in the attest commands, set via the --type flag. * Enhancements * Verify sigs andattestations in parallel (#3066) * Deep inspect attestations when filtering download (#3031) * refactor bundle validation code, add support for DSSE rekor type (#3016) * Allow overriding remote options (#3049) * feat: adds no cert found on sig exit code (#3038) * Make predicate a required flag in attest commands (#3033) * Added support for attaching Time stamp authority Response in attach command (#3001) * Add sign --sign-container-identity CLI (#2984) * Feature: Allow cosign to sign digests before they are uploaded. (#2959) * accepts attachment-tag-prefix for cosign copy (#3014) * Feature: adds '\--allow-insecure-registry' for cosign load (#3000) * download attestation: support --platform flag (#2980) * Cleanup: Add Digest to the SignedEntity interface. (#2960) * verify command: support keyless verification using only a provided certificate chain with non-fulcio roots (#2845) * verify: use workers to limit the paralellism when verifying images with --max-workers flag (#3069) * Bug Fixes * Fix pkg/cosign/errors (#3050) * Fix: update doc to refer to github-actions oidc provider (#3040) * Fix: prefer GitHub OIDC provider if enabled (#3044) * Fix --sig-only in cosign copy (#3074) * Documentation * Fix links to sigstore/docs in markdown files (#3064) Update to 2.0.2 (jsc#SLE-23879) * Enhancements * Update sigstore/sigstore to v1.6.2 to pick up TUF CDN change (#2891) * feat: Make cosign copy faster (#2901) * remove sget (#2885) * Require a payload to be provided with a signature (#2785) * Bug Fixes * cmd: Change error message from KeyParseError to PubKeyParseError for verify-blob. (#2876) * Use SOURCE_DATE_EPOCH for OCI CreatedAt times (#2878) * Documentation * Remove experimental warning from Fulcio flags (#2923) * add missing oidc provider (#2922) * Add zot as a supported registry (#2920) * deprecates kms_support docs (#2900) * chore(docs) deprecate note for usage docs (#2906) * adds note of deprecation for examples.md docs (#2899) ## Patch Instructions: To install thisSUSE 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 SUSE-2023-4870=1 openSUSE-SLE-15.4-2023-4870=1 * openSUSE Leap 15.5 zypper in -t patch openSUSE-SLE-15.5-2023-4870=1 * Basesystem Module 15-SP4 zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP4-2023-4870=1 * Basesystem Module 15-SP5 zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP5-2023-4870=1 ## Package List: * openSUSE Leap 15.4 (aarch64 ppc64le s390x x86_64 i586) * cosign-2.2.1-150400.3.14.1 * cosign-debuginfo-2.2.1-150400.3.14.1 * openSUSE Leap 15.5 (aarch64 ppc64le s390x x86_64) * cosign-2.2.1-150400.3.14.1 * Basesystem Module 15-SP4 (aarch64 ppc64le s390x x86_64) * cosign-2.2.1-150400.3.14.1 * Basesystem Module 15-SP5 (aarch64 ppc64le s390x x86_64) * cosign-2.2.1-150400.3.14.1 ## References: * https://www.suse.com/security/cve/CVE-2023-46737.html * https://bugzilla.suse.com/show_bug.cgi?id=1216933 * . A provisional fix is available for the cosign addresses repository vulnerability CVE-2023-46737. Utilize zypper or YaST for optimal results.. Cosign Security Update, SUSE Registry Threat Fix, Cosign Vulnerability Management. . LinuxSecurity.com Team
Dec 14, 2023
SuSE
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