{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2024-42255 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2024-42255 is a medium-severity vulnerability in Linux kernel, published on 8 Aug 2024. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2024-42255 and fix it if it is affected.\n\nWhat it is: CVE-2024-42255 is a medium-severity vulnerability in Linux kernel, published on 8 Aug 2024. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2024-42255 in the wild and no public exploit code.\n\nAffected product: Linux kernel. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2024-42255/ (Markdown: https://insights.sbomify.com/CVE-2024-42255/index.md)","id":"CVE-2024-42255","markdown":"https://insights.sbomify.com/CVE-2024-42255/index.md","name":"CVE-2024-42255","record":{"aliases":["BELL-CVE-2024-42255","GHSA-j5gm-gf6p-7hpm","UBUNTU-CVE-2024-42255"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Linux kernel TPM","requires_auth":"low_privilege","summary":"A local attacker can cause a kernel crash via NULL pointer dereference in the TPM subsystem when TCG_TPM2_HMAC is enabled.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":5.5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-476","name":"NULL Pointer Dereference"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\ntpm: Use auth only after NULL check in tpm_buf_check_hmac_response()\n\nDereference auth after NULL check in tpm_buf_check_hmac_response().\nOtherwise, unless tpm2_sessions_init() was called, a call can cause NULL\ndereference, when TCG_TPM2_HMAC is enabled.\n\n[jarkko: adjusted the commit message.]","ecosystems":[],"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":"tpm: Use auth only after NULL check in tpm_buf_check_hmac_response()","id":"CVE-2024-42255","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"null_dereference","year":"2024"},"n_packages":0,"n_references":2,"next":{"headline":"cifs: Fix server re-repick on subrequest retry","id":"CVE-2024-42256"},"packages":[],"prev":{"headline":"io_uring: fix error pbuf checking","id":"CVE-2024-42254"},"products":["Linux"],"published":"2024-08-08","related":[{"cvss_score":8.8,"headline":"Linux Kernel Out-of-Bounds Write","id":"CVE-2026-53266","kev_date_added":"2026-09-18","published":"2026-06-25"},{"cvss_score":8.8,"headline":"Linux Kernel Improper Input Validation","id":"CVE-2013-6282","kev_date_added":"2022-09-15","published":"2013-11-19"},{"cvss_score":8.4,"headline":"Linux Kernel Heap-Based Buffer Overflow","id":"CVE-2022-0185","kev_date_added":"2024-08-21","published":"2022-02-11"},{"cvss_score":8.4,"headline":"Linux Kernel Privilege Escalation","id":"CVE-2013-2094","kev_date_added":"2022-09-15","published":"2013-05-14"},{"cvss_score":7.8,"headline":"Linux Kernel Unspecified","id":"CVE-2026-53362","kev_date_added":"2026-08-27","published":"2026-07-04"},{"cvss_score":7.8,"headline":"Linux Kernel Missing Initialization of a Variable","id":"CVE-2026-46300","kev_date_added":"2026-10-28","published":"2026-05-23"},{"cvss_score":7.8,"headline":"Linux Kernel Race Condition","id":"CVE-2025-39964","kev_date_added":"2026-09-18","published":"2025-10-13"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-05-11","vendors":["Linux"]},"summary":"A local attacker can cause a kernel crash via NULL pointer dereference in the TPM subsystem when TCG_TPM2_HMAC is enabled.","url":"https://insights.sbomify.com/CVE-2024-42255/"}