CVE-2021-3743 (GCVE-0-2021-3743)

Vulnerability from cvelistv5 – Published: 2022-03-04 15:52 – Updated: 2024-08-03 17:01
VLAI
Summary
An out-of-bounds (OOB) memory read flaw was found in the Qualcomm IPC router protocol in the Linux kernel. A missing sanity check allows a local attacker to gain access to out-of-bounds memory, leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability.
Severity
7.1 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a Kernel Affected: Affects linux kernel v5.14.0-rc6 and above.
Show details on NVD website
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    "redhat_vex": {
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      "current_release_date": "2026-06-28T07:48:02+00:00",
      "cve": "CVE-2021-3743",
      "id": "CVE-2021-3743",
      "initial_release_date": "2021-08-20T00:00:00+00:00",
      "product_status:fixed": "150",
      "product_status:known_not_affected": "149",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: out-of-bound Read in qrtr_endpoint_post in net/qrtr/qrtr.c",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-3743.json",
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}



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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

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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.