fkie_cve-2019-11191
Vulnerability from fkie_nvd
Published
2019-04-12 00:29
Modified
2024-11-21 04:20
Severity ?
Summary
The Linux kernel through 5.0.7, when CONFIG_IA32_AOUT is enabled and ia32_aout is loaded, allows local users to bypass ASLR on setuid a.out programs (if any exist) because install_exec_creds() is called too late in load_aout_binary() in fs/binfmt_aout.c, and thus the ptrace_may_access() check has a race condition when reading /proc/pid/stat. NOTE: the software maintainer disputes that this is a vulnerability because ASLR for a.out format executables has never been supported
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * |
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"value": "The Linux kernel through 5.0.7, when CONFIG_IA32_AOUT is enabled and ia32_aout is loaded, allows local users to bypass ASLR on setuid a.out programs (if any exist) because install_exec_creds() is called too late in load_aout_binary() in fs/binfmt_aout.c, and thus the ptrace_may_access() check has a race condition when reading /proc/pid/stat. NOTE: the software maintainer disputes that this is a vulnerability because ASLR for a.out format executables has never been supported"
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"value": "** EN DISPUTA ** En el kernel de Linux hasta de la versi\u00f3n 5.0.7, cuando CONFIG_IA32_AOUT est\u00e1 habilitado y ia32_aout est\u00e1 cargado, permite a los usuarios locales omitir ASLR en programas setuid a.out (si existe) porque install_exec_creds() es llamado demasiado tarde en load_aout_binary() en fs/binfmt_aout .c, y por lo tanto la comprobaci\u00f3n ptrace_may_access() tiene una condici\u00f3n de carrera cuando se lee /proc/pid/stat. NOTA: el mantenedor de software discute que se trate de una vulnerabilidad porque ASLR para un archivo ejecutable de formato nunca fue compatible."
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"lastModified": "2024-11-21T04:20:42.093",
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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