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CVE-2017-2636 (GCVE-0-2017-2636)

Vulnerability from cvelistv5 – Published: 2017-03-07 22:00 – Updated: 2024-08-05 14:02
VLAI
Summary
Race condition in drivers/tty/n_hdlc.c in the Linux kernel through 4.10.1 allows local users to gain privileges or cause a denial of service (double free) by setting the HDLC line discipline.
CWE
  • n/a
References
URL Tags
https://access.redhat.com/errata/RHSA-2017:0892 vendor-advisoryx_refsource_REDHAT
http://www.securityfocus.com/bid/96732 vdb-entryx_refsource_BID
http://www.securitytracker.com/id/1037963 vdb-entryx_refsource_SECTRACK
https://access.redhat.com/errata/RHSA-2017:0932 vendor-advisoryx_refsource_REDHAT
http://www.openwall.com/lists/oss-security/2017/03/07/6 mailing-listx_refsource_MLIST
https://bugzilla.redhat.com/show_bug.cgi?id=1428319 x_refsource_CONFIRM
https://a13xp0p0v.github.io/2017/03/24/CVE-2017-2… x_refsource_MISC
https://access.redhat.com/errata/RHSA-2017:1125 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2017:0933 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2017:1232 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2017:0931 vendor-advisoryx_refsource_REDHAT
http://www.debian.org/security/2017/dsa-3804 vendor-advisoryx_refsource_DEBIAN
https://access.redhat.com/errata/RHSA-2017:1233 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2017:1488 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2017:0986 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2017:1126 vendor-advisoryx_refsource_REDHAT
Date Public
2017-02-28 00:00
Show details on NVD website

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HDLC.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.0,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.0,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:M/Au:N/C:C/I:C/A:C\",\"baseScore\":6.9,\"accessVector\":\"LOCAL\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"COMPLETE\",\"integrityImpact\":\"COMPLETE\",\"availabilityImpact\":\"COMPLETE\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":3.4,\"impactScore\":10.0,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-362\"},{\"lang\":\"en\",\"value\":\"CWE-415\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"2.6.31\",\"versionEndExcluding\":\"3.2.87\",\"matchCriteriaId\":\"ED857DA5-6E36-4284-B8E7-6F7C9E91BA56\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.3\",\"versionEndExcluding\":\"3.10.106\",\"matchCriteriaId\":\"3116EF11-56E7-4D40-9FD0-6109280D0247\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.11\",\"versionEndExcluding\":\"3.12.72\",\"matchCriteriaId\":\"64196781-237D-42CA-BF7F-AD55DE12D30F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.13\",\"versionEndExcluding\":\"3.16.42\",\"matchCriteriaId\":\"AF664753-05DC-4D55-B3B2-0DABB1E59297\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.17\",\"versionEndExcluding\":\"3.18.49\",\"matchCriteriaId\":\"5AA77834-089F-4556-A00B-CAC1E08444BF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.19\",\"versionEndExcluding\":\"4.1.49\",\"matchCriteriaId\":\"F3C1F309-D954-4BB7-AC02-30FC58BE76F9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.2\",\"versionEndExcluding\":\"4.4.54\",\"matchCriteriaId\":\"75D08B52-EA80-4C04-A8D5-06E8048DD535\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.5\",\"versionEndExcluding\":\"4.9.15\",\"matchCriteriaId\":\"4FC9045A-6BA5-46F6-86D8-06B6C1A213F5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.10\",\"versionEndExcluding\":\"4.10.3\",\"matchCriteriaId\":\"36931271-7D26-46A8-A348-32F5994B508C\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43\"}]}]}],\"references\":[{\"url\":\"http://www.debian.org/security/2017/dsa-3804\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Third 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    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-06-28T11:46:26+00:00",
      "cve": "CVE-2017-2636",
      "id": "CVE-2017-2636",
      "initial_release_date": "2017-03-07T00:00:00+00:00",
      "product_status:fixed": "730",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Race condition access to n_hdlc.tbuf causes double free in n_hdlc_release()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2017/cve-2017-2636.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-05T01:21:27Z",
      "cve": "CVE-2017-2636",
      "id": "CVE-2017-2636",
      "initial_release_date": "2023-02-15T04:52:46Z",
      "product_status:known_not_affected": "339",
      "product_status:recommended": "557",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2017-2636",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2017-2636.json",
      "version": "19"
    }
  }
}



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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

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.

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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.


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