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CVE-2018-18445 (GCVE-0-2018-18445)

Vulnerability from cvelistv5 – Published: 2018-10-17 19:00 – Updated: 2024-08-05 11:08
VLAI
Summary
In the Linux kernel 4.14.x, 4.15.x, 4.16.x, 4.17.x, and 4.18.x before 4.18.13, faulty computation of numeric bounds in the BPF verifier permits out-of-bounds memory accesses because adjust_scalar_min_max_vals in kernel/bpf/verifier.c mishandles 32-bit right shifts.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • n/a
Assigner
References
URL Tags
https://cdn.kernel.org/pub/linux/kernel/v4.x/Chan… x_refsource_MISC
https://usn.ubuntu.com/3847-1/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3835-1/ vendor-advisoryx_refsource_UBUNTU
https://access.redhat.com/errata/RHSA-2019:0512 vendor-advisoryx_refsource_REDHAT
https://usn.ubuntu.com/3847-2/ vendor-advisoryx_refsource_UBUNTU
https://cdn.kernel.org/pub/linux/kernel/v4.x/Chan… x_refsource_MISC
https://usn.ubuntu.com/3832-1/ vendor-advisoryx_refsource_UBUNTU
https://github.com/torvalds/linux/commit/b799207e… x_refsource_MISC
https://usn.ubuntu.com/3847-3/ vendor-advisoryx_refsource_UBUNTU
https://access.redhat.com/errata/RHSA-2019:0514 vendor-advisoryx_refsource_REDHAT
https://bugs.chromium.org/p/project-zero/issues/d… x_refsource_MISC
http://git.kernel.org/cgit/linux/kernel/git/torva… x_refsource_MISC
https://support.f5.com/csp/article/K38456756 x_refsource_CONFIRM
Date Public
2018-10-17 00:00
Show details on NVD website
To clipboard 

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}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.