{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-52629 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-52629 is a high-severity use after free vulnerability in Linux kernel, published on 29 Mar 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-2023-52629 and fix it if it is affected.\n\nWhat it is: CVE-2023-52629 is a high-severity use after free vulnerability in Linux kernel, published on 29 Mar 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-2023-52629 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-2023-52629/ (Markdown: https://insights.sbomify.com/CVE-2023-52629/index.md)","id":"CVE-2023-52629","markdown":"https://insights.sbomify.com/CVE-2023-52629/index.md","name":"CVE-2023-52629","record":{"aliases":["BELL-CVE-2023-52629","DEBIAN-CVE-2023-52629","GHSA-384v-9gx5-rmx4","ROOT-OS-DEBIAN-11-CVE-2023-52629","ROOT-OS-DEBIAN-12-CVE-2023-52629","UBUNTU-CVE-2023-52629"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["code_execution","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"none","summary":"A use-after-free vulnerability in the Linux kernel's sh: push-switch driver allows attackers to potentially execute arbitrary code or escalate privileges.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":8.4,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-416","name":"Use After Free"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nsh: push-switch: Reorder cleanup operations to avoid use-after-free bug\n\nThe original code puts flush_work() before timer_shutdown_sync()\nin switch_drv_remove(). Although we use flush_work() to stop\nthe worker, it could be rescheduled in switch_timer(). As a result,\na use-after-free bug can occur. The details are shown below:\n\n      (cpu 0)                    |      (cpu 1)\nswitch_drv_remove()              |\n flush_work()                    |\n  ...                            |  switch_timer // timer\n                                 |   schedule_work(\u0026psw-\u003ework)\n timer_shutdown_sync()           |\n ...                             |  switch_work_handler // worker\n kfree(psw) // free              |\n                                 |   psw-\u003estate = 0 // use\n\nThis patch puts timer_shutdown_sync() before flush_work() to\nmitigate the bugs. As a result, the worker and timer will be\nstopped safely before the deallocate operations.","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":"sh: push-switch: Reorder cleanup operations to avoid use-after-free bug","id":"CVE-2023-52629","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"use_after_free","year":"2023"},"n_packages":0,"n_references":3,"next":{"headline":"This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.","id":"CVE-2023-52630"},"packages":[],"prev":{"headline":"netfilter: nftables: exthdr: fix 4-byte stack OOB write","id":"CVE-2023-52628"},"products":["Linux"],"published":"2024-03-29","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":"total"},"state":"PUBLISHED","updated":"2026-10-03","vendors":["Linux"]},"summary":"A use-after-free vulnerability in the Linux kernel's sh: push-switch driver allows attackers to potentially execute arbitrary code or escalate privileges.","url":"https://insights.sbomify.com/CVE-2023-52629/"}