rhsa-2015:1741
Vulnerability from csaf_redhat
Published
2015-09-08 11:30
Modified
2025-10-09 15:56
Summary
Red Hat Security Advisory: haproxy security update

Notes

Topic
An updated haproxy package that fixes one security issue is now available for Red Hat Enterprise Linux 6 and 7. Red Hat Product Security has rated this update as having Important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.
Details
HAProxy provides high availability, load balancing, and proxying for TCP and HTTP-based applications. An implementation error related to the memory management of request and responses was found within HAProxy's buffer_slow_realign() function. An unauthenticated remote attacker could possibly use this flaw to leak certain memory buffer contents from a past request or session. (CVE-2015-3281) All haproxy users are advised to upgrade to this updated package, which contains a backported patch to correct 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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  "vulnerabilities": [
    {
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      "cwe": {
        "id": "CWE-119",
        "name": "Improper Restriction of Operations within the Bounds of a Memory Buffer"
      },
      "discovery_date": "2015-07-03T00:00:00+00:00",
      "ids": [
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          "text": "1239072"
        }
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          "text": "An implementation error related to the memory management of request and responses was found within HAProxy\u0027s buffer_slow_realign() function. An unauthenticated remote attacker could possibly use this flaw to leak certain memory buffer contents from a past request or session.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "haproxy: information leak in buffer_slow_realign()",
          "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"
        }
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          "summary": "https://www.cve.org/CVERecord?id=CVE-2015-3281",
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          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2015-3281",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2015-3281"
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      "release_date": "2015-07-07T00:00:00+00:00",
      "remediations": [
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          "date": "2015-09-08T11:30:34+00:00",
          "details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
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            "authentication": "NONE",
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            "baseScore": 5.0,
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            "7Server-7.1.Z:haproxy-0:1.5.4-4.el7_1.1.x86_64",
            "7Server-7.1.Z:haproxy-debuginfo-0:1.5.4-4.el7_1.1.x86_64",
            "7Workstation-7.1.Z:haproxy-0:1.5.4-4.el7_1.1.src",
            "7Workstation-7.1.Z:haproxy-0:1.5.4-4.el7_1.1.x86_64",
            "7Workstation-7.1.Z:haproxy-debuginfo-0:1.5.4-4.el7_1.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "haproxy: information leak in buffer_slow_realign()"
    }
  ]
}


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