{"answers":{"affected":"2 open source packages ship an affected version, including github.com/cosmos/cosmos-sdk. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-41135 in the wild and no public exploit code.","fix":"Upgrade github.com/cosmos/cosmos-sdk to 0.44.2 or later.","what":"CVE-2021-41135 is a medium-severity denial of service vulnerability in cosmos-sdk, published on 20 Oct 2021. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-41135 and fix it if it is affected.\n\nWhat it is: CVE-2021-41135 is a medium-severity denial of service vulnerability in cosmos-sdk, published on 20 Oct 2021. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-41135 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/cosmos/cosmos-sdk (Go): affected from 0.43.0; fixed in 0.44.2\n- github.com/cosmos/cosmos-sdk (Go): affected from 0.43.0; fixed in 0.44.2\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2021-41135/ (Markdown: https://insights.sbomify.com/CVE-2021-41135/index.md)","id":"CVE-2021-41135","markdown":"https://insights.sbomify.com/CVE-2021-41135/index.md","name":"CVE-2021-41135","record":{"aliases":["GHSA-2p6r-37p9-89p2"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":true,"product_category":"Cosmos SDK blockchain framework","requires_auth":"low_privilege","summary":"Attackers can halt blockchain consensus by exploiting non-deterministic time checks in the authz module, requiring an upgrade to fix.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"cosmos_sdk","vendor":"interchain"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-754","name":"Improper Check for Unusual or Exceptional Conditions"}],"description":"The Cosmos-SDK is a framework for building blockchain applications in Golang. Affected versions of the SDK were vulnerable to a consensus halt due to non-deterministic behaviour in a ValidateBasic method in the x/authz module. The MsgGrant of the x/authz module contains a Grant field which includes a user-defined expiration time for when the authorization grant expires. In Grant.ValidateBasic(), that time is compared to the node’s local clock time. Any chain running an affected version of the SDK with the authz module enabled could be halted by anyone with the ability to send transactions on that chain. Recovery would require applying the patch and rolling back the latest block. Users are advised to update to version 0.44.2.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Authz Module Non-Determinism","id":"CVE-2021-41135","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"denial_of_service","year":"2021"},"n_packages":2,"n_references":3,"next":{"headline":"Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling') in puma","id":"CVE-2021-41136"},"packages":[{"ecosystem":"Go","fixed":["0.44.2"],"introduced":["0.43.0"],"last_affected":[],"package":"github.com/cosmos/cosmos-sdk","purl":null,"source":"GHSA-2p6r-37p9-89p2"},{"ecosystem":"Go","fixed":["0.44.2"],"introduced":["0.43.0"],"last_affected":[],"package":"github.com/cosmos/cosmos-sdk","purl":"pkg:golang/github.com/cosmos/cosmos-sdk","source":"GHSA-2p6r-37p9-89p2"}],"prev":{"headline":"Stored XSS in Jupyter nbdime","id":"CVE-2021-41134"},"products":["cosmos-sdk"],"published":"2021-10-20","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["cosmos"]},"summary":"Attackers can halt blockchain consensus by exploiting non-deterministic time checks in the authz module, requiring an upgrade to fix.","url":"https://insights.sbomify.com/CVE-2021-41135/"}