rhsa-2018_2882
Vulnerability from csaf_redhat
Published
2018-10-08 10:05
Modified
2024-11-05 20:46
Summary
Red Hat Security Advisory: rh-haproxy18-haproxy security update

Notes

Topic
An update for rh-haproxy18-haproxy is now available for Red Hat Software Collections. 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
HAProxy is a TCP/HTTP reverse proxy which is particularly suited for high availability environments. Security Fix(es): * haproxy: Out-of-bounds read in HPACK decoder (CVE-2018-14645) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section. Red Hat would like to thank Tim Düsterhus and Willy Tarreau for reporting this issue.
Terms of Use
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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      "acknowledgments": [
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      "cve": "CVE-2018-14645",
      "cwe": {
        "id": "CWE-125",
        "name": "Out-of-bounds Read"
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      "discovery_date": "2018-09-17T00:00:00+00:00",
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          "system_name": "Red Hat Bugzilla ID",
          "text": "1630048"
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      "notes": [
        {
          "category": "description",
          "text": "A flaw was discovered in the HPACK decoder of haproxy, before 1.8.14, that is used for HTTP/2. An out-of-bounds read access in hpack_valid_idx() resulted in a remote crash and denial of service.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "haproxy: Out-of-bounds read in HPACK decoder",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "HTTP/2 support was added to haproxy in version 1.8, therefore OpenShift Container Platform (OCP) 3.7 and earlier are unaffected by this flaw. OCP 3.11 added a configuration option to ose-haproxy-router that made enabling HTTP/2 support easy, [2]. Prior to that, in versions OCP 3.9 and 3.10, an administrator had to customize the haproxy router configuration to add HTTP/2 support, [3]. OCP 3.9, and 3.10 are rated as moderate because HTTP/2 support was not a standard configuration option, and therefore unlikely to be enabled.\n\nVersions of haproxy included in Red Hat Enterprise Linux 6 and 7, excluding rh-haproxy18-haproxy in Red Hat Software Collections, are unaffected as they package versions of haproxy before 1.7.\n\n[1] http://www.haproxy.org/news.html\n\n[2] https://github.com/openshift/origin/pull/19968\n\n[3] https://docs.openshift.com/container-platform/3.10/install_config/router/customized_haproxy_router.html",
          "title": "Statement"
        },
        {
          "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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      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2018-14645"
        },
        {
          "category": "external",
          "summary": "RHBZ#1630048",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1630048"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2018-14645",
          "url": "https://www.cve.org/CVERecord?id=CVE-2018-14645"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2018-14645",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-14645"
        },
        {
          "category": "external",
          "summary": "https://www.mail-archive.com/haproxy@formilux.org/msg31253.html",
          "url": "https://www.mail-archive.com/haproxy@formilux.org/msg31253.html"
        }
      ],
      "release_date": "2018-09-20T12:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2018-10-08T10:05:56+00:00",
          "details": "For 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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          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2018:2882"
        },
        {
          "category": "workaround",
          "details": "HTTP/2 support is disabled by default on OpenShift Container Platform 3.11. To mitigate this vulnerability keep it disabled. You can verify if HTTP/2 support is enabled by following the instructions in the upstream pull request, [1].\n\n[1] https://github.com/openshift/origin/pull/19968",
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      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.0"
          },
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        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "haproxy: Out-of-bounds read in HPACK decoder"
    }
  ]
}


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