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CVE-2023-3611 (GCVE-0-2023-3611)

Vulnerability from cvelistv5 – Published: 2023-07-21 20:49 – Updated: 2025-02-13 16:56
VLAI
Title
Out-of-bounds write in Linux kernel's net/sched: sch_qfq component
Summary
An out-of-bounds write vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to achieve local privilege escalation. The qfq_change_agg() function in net/sched/sch_qfq.c allows an out-of-bounds write because lmax is updated according to packet sizes without bounds checks. We recommend upgrading past commit 3e337087c3b5805fe0b8a46ba622a962880b5d64.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-27 13:33 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Kernel Affected: 3.8 , < 6.5 (custom)
guessed Create a notification for this product.
linux kernel Affected: 3.8 , < 6.5 (custom)
    cpe:2.3:o:linux:kernel:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2023-07-13 09:11
Credits
Lion
Show details on NVD website
To clipboard 

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\"defaultStatus\": \"unaffected\"}], \"datePublic\": \"2023-07-13T09:11:00.000Z\", \"references\": [{\"url\": \"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3e337087c3b5805fe0b8a46ba622a962880b5d64\", \"tags\": [\"patch\"]}, {\"url\": \"https://kernel.dance/3e337087c3b5805fe0b8a46ba622a962880b5d64\"}, {\"url\": \"https://www.debian.org/security/2023/dsa-5480\"}, {\"url\": \"https://security.netapp.com/advisory/ntap-20230908-0002/\"}, {\"url\": \"https://www.debian.org/security/2023/dsa-5492\"}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html\"}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html\"}], \"x_generator\": {\"engine\": \"Vulnogram 0.1.0-dev\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"An out-of-bounds write vulnerability in the Linux kernel\u0027s net/sched: sch_qfq component can be exploited to achieve local privilege escalation.\\n\\nThe qfq_change_agg() function in net/sched/sch_qfq.c allows an out-of-bounds write because lmax is updated according to packet sizes without bounds checks.\\n\\nWe recommend upgrading past commit 3e337087c3b5805fe0b8a46ba622a962880b5d64.\\n\\n\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eAn out-of-bounds write vulnerability in the Linux kernel\u0027s net/sched: sch_qfq component can be exploited to achieve local privilege escalation.\u003c/p\u003e\u003cp\u003eThe qfq_change_agg() function in net/sched/sch_qfq.c allows an out-of-bounds write because lmax is updated according to packet sizes without bounds checks.\u003c/p\u003e\u003cp\u003eWe recommend upgrading past commit 3e337087c3b5805fe0b8a46ba622a962880b5d64.\u003c/p\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-787\", \"description\": \"CWE-787 Out-of-bounds Write\"}]}], \"providerMetadata\": {\"orgId\": \"14ed7db2-1595-443d-9d34-6215bf890778\", \"shortName\": \"Google\", \"dateUpdated\": \"2023-07-22T09:43:12.163Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-3611\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-09-27T13:43:55.993Z\", \"dateReserved\": \"2023-07-10T20:52:55.365Z\", \"assignerOrgId\": \"14ed7db2-1595-443d-9d34-6215bf890778\", \"datePublished\": \"2023-07-21T20:49:10.812Z\", \"assignerShortName\": \"Google\"}",
      "dataType": "CVE_RECORD",
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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.