{"answers":{"affected":"3 open source packages ship an affected version, including bam. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-28027 in the wild and no public exploit code.","fix":"Upgrade bam to 0.1.3 or later.","what":"CVE-2021-28027 is a critical vulnerability in n/a, published on 5 Mar 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-28027 and fix it if it is affected.\n\nWhat it is: CVE-2021-28027 is a critical vulnerability in n/a, published on 5 Mar 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-28027 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- bam (crates.io): affected all versions; fixed in 0.1.3\n- bam (crates.io): affected all versions; fixed in 0.1.3\n- bam (crates.io): affected from 0.0.0-0; fixed in 0.1.3\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-2021-28027/ (Markdown: https://insights.sbomify.com/CVE-2021-28027/index.md)","id":"CVE-2021-28027","markdown":"https://insights.sbomify.com/CVE-2021-28027/index.md","name":"CVE-2021-28027","record":{"aliases":["GHSA-cpqj-r29q-chrh","RUSTSEC-2021-0027"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Rust BAM parsing library","requires_auth":"none","summary":"An integer underflow in the bam crate allows out-of-bounds writes when loading bgzip blocks, potentially leading to code execution or crashes.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"bam","vendor":"bam_project"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-191","name":"Integer Underflow (Wrap or Wraparound)"}],"description":"An issue was discovered in the bam crate before 0.1.3 for Rust. There is an integer underflow and out-of-bounds write during the loading of a bgzip block.","ecosystems":["crates.io"],"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":"Loading a bgzip block can write out of bounds if size overflows.","id":"CVE-2021-28027","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"crates.io","product":null,"products":[],"type":"integer_overflow","year":"2021"},"n_packages":3,"n_references":1,"next":{"headline":"Double free in toodee","id":"CVE-2021-28028"},"packages":[{"ecosystem":"crates.io","fixed":["0.1.3"],"introduced":["0"],"last_affected":[],"package":"bam","purl":null,"source":"GHSA-cpqj-r29q-chrh"},{"ecosystem":"crates.io","fixed":["0.1.3"],"introduced":["0"],"last_affected":[],"package":"bam","purl":"pkg:cargo/bam","source":"GHSA-cpqj-r29q-chrh"},{"ecosystem":"crates.io","fixed":["0.1.3"],"introduced":["0.0.0-0"],"last_affected":[],"package":"bam","purl":"pkg:cargo/bam","source":"RUSTSEC-2021-0027"}],"prev":{"headline":"Memory corruption in n/a","id":"CVE-2021-28026"},"products":["n/a"],"published":"2021-03-05","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":"open","licence":"CC0 1.0","name":"RustSec","prefix":"RUSTSEC"},{"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":"2024-08-03","vendors":["n/a"]},"summary":"An integer underflow in the bam crate allows out-of-bounds writes when loading bgzip blocks, potentially leading to code execution or crashes.","url":"https://insights.sbomify.com/CVE-2021-28027/"}