csaf_redhat - rhsa-2019

rhsa-2019_3231

Vulnerability from csaf_redhat

Published

2019-10-29 14:18

Modified

2024-11-15 08:26

Summary

Red Hat Security Advisory: kpatch-patch security update

Notes

Topic

An update for kpatch-patch is now available for Red Hat Enterprise Linux 7.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Details

This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel. Security Fix(es): * hardware: bluetooth: BR/EDR encryption key negotiation attacks (KNOB) (CVE-2019-9506) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

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      "cwe": {
        "id": "CWE-327",
        "name": "Use of a Broken or Risky Cryptographic Algorithm"
      },
      "discovery_date": "2019-06-11T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1727857"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was discovered in the Bluetooth protocol.  An attacker within physical proximity to the Bluetooth connection could downgrade the encryption protocol to be trivially brute forced.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "hardware: bluetooth: BR/EDR encryption key negotiation attacks (KNOB)",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
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          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2019-9506"
        },
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          "summary": "RHBZ#1727857",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1727857"
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          "summary": "https://www.cve.org/CVERecord?id=CVE-2019-9506",
          "url": "https://www.cve.org/CVERecord?id=CVE-2019-9506"
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        {
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          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-9506",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-9506"
        }
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      "release_date": "2019-08-10T09:00:00+00:00",
      "remediations": [
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          "date": "2019-10-29T14:18:13+00:00",
          "details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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            "7Server-7.6.EUS:kpatch-patch-3_10_0-957_35_1-debuginfo-0:1-2.el7.ppc64le",
            "7Server-7.6.EUS:kpatch-patch-3_10_0-957_35_1-debuginfo-0:1-2.el7.x86_64",
            "7Server-7.6.EUS:kpatch-patch-3_10_0-957_35_2-0:1-1.el7.ppc64le",
            "7Server-7.6.EUS:kpatch-patch-3_10_0-957_35_2-0:1-1.el7.src",
            "7Server-7.6.EUS:kpatch-patch-3_10_0-957_35_2-0:1-1.el7.x86_64",
            "7Server-7.6.EUS:kpatch-patch-3_10_0-957_35_2-debuginfo-0:1-1.el7.ppc64le",
            "7Server-7.6.EUS:kpatch-patch-3_10_0-957_35_2-debuginfo-0:1-1.el7.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 7.0,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L",
            "version": "3.0"
          },
          "products": [
            "7Server-7.6.EUS:kpatch-patch-3_10_0-957_35_1-0:1-2.el7.ppc64le",
            "7Server-7.6.EUS:kpatch-patch-3_10_0-957_35_1-0:1-2.el7.src",
            "7Server-7.6.EUS:kpatch-patch-3_10_0-957_35_1-0:1-2.el7.x86_64",
            "7Server-7.6.EUS:kpatch-patch-3_10_0-957_35_1-debuginfo-0:1-2.el7.ppc64le",
            "7Server-7.6.EUS:kpatch-patch-3_10_0-957_35_1-debuginfo-0:1-2.el7.x86_64",
            "7Server-7.6.EUS:kpatch-patch-3_10_0-957_35_2-0:1-1.el7.ppc64le",
            "7Server-7.6.EUS:kpatch-patch-3_10_0-957_35_2-0:1-1.el7.src",
            "7Server-7.6.EUS:kpatch-patch-3_10_0-957_35_2-0:1-1.el7.x86_64",
            "7Server-7.6.EUS:kpatch-patch-3_10_0-957_35_2-debuginfo-0:1-1.el7.ppc64le",
            "7Server-7.6.EUS:kpatch-patch-3_10_0-957_35_2-debuginfo-0:1-1.el7.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "hardware: bluetooth: BR/EDR encryption key negotiation attacks (KNOB)"
    }
  ]
}

cve-2019-9506

Vulnerability from cvelistv5

Published

2019-08-14 16:27

Modified

2024-09-16 19:14

Severity ?

7.6 (High) - CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

Summary

The Bluetooth BR/EDR specification up to and including version 5.1 permits sufficiently low encryption key length and does not prevent an attacker from influencing the key length negotiation. This allows practical brute-force attacks (aka "KNOB") that can decrypt traffic and inject arbitrary ciphertext without the victim noticing.

References

▼	URL	Tags
	https://www.kb.cert.org/vuls/id/918987/	third-party-advisory, x_refsource_CERT-VN
	http://www.cs.ox.ac.uk/publications/publication12404-abstract.html	x_refsource_MISC
	https://www.usenix.org/conference/usenixsecurity19/presentation/antonioli	x_refsource_MISC
	https://www.bluetooth.com/security/statement-key-negotiation-of-bluetooth/	x_refsource_CONFIRM
	http://seclists.org/fulldisclosure/2019/Aug/14	mailing-list, x_refsource_FULLDISC
	http://seclists.org/fulldisclosure/2019/Aug/11	mailing-list, x_refsource_FULLDISC
	http://seclists.org/fulldisclosure/2019/Aug/13	mailing-list, x_refsource_FULLDISC
	http://seclists.org/fulldisclosure/2019/Aug/15	mailing-list, x_refsource_FULLDISC
	http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20190828-01-knob-en	x_refsource_CONFIRM
	https://usn.ubuntu.com/4115-1/	vendor-advisory, x_refsource_UBUNTU
	https://usn.ubuntu.com/4118-1/	vendor-advisory, x_refsource_UBUNTU
	https://lists.debian.org/debian-lts-announce/2019/09/msg00014.html	mailing-list, x_refsource_MLIST
	https://lists.debian.org/debian-lts-announce/2019/09/msg00015.html	mailing-list, x_refsource_MLIST
	https://lists.debian.org/debian-lts-announce/2019/09/msg00025.html	mailing-list, x_refsource_MLIST
	https://usn.ubuntu.com/4147-1/	vendor-advisory, x_refsource_UBUNTU
	https://access.redhat.com/errata/RHSA-2019:2975	vendor-advisory, x_refsource_REDHAT
	http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00037.html	vendor-advisory, x_refsource_SUSE
	http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00036.html	vendor-advisory, x_refsource_SUSE
	https://access.redhat.com/errata/RHSA-2019:3076	vendor-advisory, x_refsource_REDHAT
	https://access.redhat.com/errata/RHSA-2019:3055	vendor-advisory, x_refsource_REDHAT
	https://access.redhat.com/errata/RHSA-2019:3089	vendor-advisory, x_refsource_REDHAT
	https://access.redhat.com/errata/RHSA-2019:3187	vendor-advisory, x_refsource_REDHAT
	https://access.redhat.com/errata/RHSA-2019:3165	vendor-advisory, x_refsource_REDHAT
	https://access.redhat.com/errata/RHSA-2019:3217	vendor-advisory, x_refsource_REDHAT
	https://access.redhat.com/errata/RHSA-2019:3220	vendor-advisory, x_refsource_REDHAT
	https://access.redhat.com/errata/RHSA-2019:3231	vendor-advisory, x_refsource_REDHAT
	https://access.redhat.com/errata/RHSA-2019:3218	vendor-advisory, x_refsource_REDHAT
	https://access.redhat.com/errata/RHSA-2019:3309	vendor-advisory, x_refsource_REDHAT
	https://access.redhat.com/errata/RHSA-2019:3517	vendor-advisory, x_refsource_REDHAT
	https://access.redhat.com/errata/RHSA-2020:0204	vendor-advisory, x_refsource_REDHAT

Impacted products

Vendor

Product

Version

▼

Bluetooth

BR/EDR

Version: 5.1 <

Show details on NVD website

JSON

To clipboard

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    "dateReserved": "2019-03-01T00:00:00",
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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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