CVE-2021-41073 (GCVE-0-2021-41073)

Vulnerability from cvelistv5 – Published: 2021-09-19 16:02 – Updated: 2024-08-04 02:59
VLAI?
Summary
loop_rw_iter in fs/io_uring.c in the Linux kernel 5.10 through 5.14.6 allows local users to gain privileges by using IORING_OP_PROVIDE_BUFFERS to trigger a free of a kernel buffer, as demonstrated by using /proc/<pid>/maps for exploitation.
Severity ?
No CVSS data available.
CWE
  • n/a
Assigner
References
Show details on NVD website
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    "nvd": "{\"cve\":{\"id\":\"CVE-2021-41073\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2021-09-19T17:15:07.227\",\"lastModified\":\"2024-11-21T06:25:23.367\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"loop_rw_iter in fs/io_uring.c in the Linux kernel 5.10 through 5.14.6 allows local users to gain privileges by using IORING_OP_PROVIDE_BUFFERS to trigger a free of a kernel buffer, as demonstrated by using /proc/\u003cpid\u003e/maps for exploitation.\"},{\"lang\":\"es\",\"value\":\"La funci\u00f3n loop_rw_iter en fs/io_uring.c en el kernel de Linux desde la versi\u00f3n 5.10 hasta la versi\u00f3n 5.14.6 permite a los usuarios locales ganar privilegios mediante el uso de IORING_OP_PROVIDE_BUFFERS para desencadenar una liberaci\u00f3n de un b\u00fafer del kernel, como se ha demostrado utilizando /proc//maps para su 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  }
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.