rhsa-2017_1567
Vulnerability from csaf_redhat
Published
2017-06-21 15:11
Modified
2024-11-22 11:09
Summary
Red Hat Security Advisory: Red Hat Container Development Kit 3.0.0 security update

Notes

Topic
An update is now available for Red Hat Container Development Kit 3.0.0. 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
Red Hat Container Development Kit is a platform for developing containerized applications — it is a set of tools that enables developers to quickly and easily set up an environment for developing and testing containerized applications on the Red Hat Enterprise Linux platform. With this update, Container Development Kit has been updated to 3.0.0-2, which includes an updated Red Hat Enterprise Linux ISO that contains fixes for the following security issues. Security Fix(es): * A null pointer dereference flaw was found in the way NSS handled empty SSLv2 messages. An attacker could use this flaw to crash a server application compiled against the NSS library. (CVE-2017-7502) * A flaw was found in the way memory was being allocated on the stack for user space binaries. If heap (or different memory region) and stack memory regions were adjacent to each other, an attacker could use this flaw to jump over the stack guard gap, cause controlled memory corruption on process stack or the adjacent memory region, and thus increase their privileges on the system. This is a kernel-side mitigation which increases the stack guard gap size from one page to 1 MiB to make successful exploitation of this issue more difficult. (CVE-2017-1000364) * A flaw was found in the way memory was being allocated on the stack for user space binaries. If heap (or different memory region) and stack memory regions were adjacent to each other, an attacker could use this flaw to jump over the stack guard gap, cause controlled memory corruption on process stack or the adjacent memory region, and thus increase their privileges on the system. This is glibc-side mitigation which blocks processing of LD_LIBRARY_PATH for programs running in secure-execution mode and reduces the number of allocations performed by the processing of LD_AUDIT, LD_PRELOAD, and LD_HWCAP_MASK, making successful exploitation of this issue more difficult. (CVE-2017-1000366) Red Hat would like to thank Qualys Research Labs for reporting CVE-2017-1000364 and CVE-2017-1000366.
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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{
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      "text": "Important"
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        "text": "An update is now available for Red Hat Container Development Kit 3.0.0.\n\nRed 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.",
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        "text": "Red Hat Container Development Kit is a platform for developing containerized applications\u2009\u2014\u2009it is a set of tools that enables developers to quickly and easily set up an environment for developing and testing containerized applications on the Red Hat Enterprise Linux platform.\n\nWith this update, Container Development Kit has been updated to 3.0.0-2, which includes an updated Red Hat Enterprise Linux ISO that contains fixes for the following security issues.\n\nSecurity Fix(es):\n\n* A null pointer dereference flaw was found in the way NSS handled empty SSLv2 messages. An attacker could use this flaw to crash a server application compiled against the NSS library. (CVE-2017-7502)\n\n* A flaw was found in the way memory was being allocated on the stack for user space binaries. If heap (or different memory region) and stack memory regions were adjacent to each other, an attacker could use this flaw to jump over the stack guard gap, cause controlled memory corruption on process stack or the adjacent memory region, and thus increase their privileges on the system. This is a kernel-side mitigation which increases the stack guard gap size from one page to 1 MiB to make successful exploitation of this issue more difficult. (CVE-2017-1000364)\n\n* A flaw was found in the way memory was being allocated on the stack for user space binaries. If heap (or different memory region) and stack memory regions were adjacent to each other, an attacker could use this flaw to jump over the stack guard gap, cause controlled memory corruption on process stack or the adjacent memory region, and thus increase their privileges on the system. This is glibc-side mitigation which blocks processing of LD_LIBRARY_PATH for programs running in secure-execution mode and reduces the number of allocations performed by the processing of LD_AUDIT, LD_PRELOAD, and LD_HWCAP_MASK, making successful exploitation of this issue more difficult. (CVE-2017-1000366)\n\nRed Hat would like to thank Qualys Research Labs for reporting CVE-2017-1000364 and CVE-2017-1000366.",
        "title": "Details"
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        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2017/rhsa-2017_1567.json"
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    "title": "Red Hat Security Advisory: Red Hat Container Development Kit 3.0.0 security update",
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      "ids": [
        {
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          "text": "1446631"
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      ],
      "notes": [
        {
          "category": "description",
          "text": "A null pointer dereference flaw was found in the way NSS handled empty SSLv2 messages. An attacker could use this flaw to crash a server application compiled against the NSS library.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "nss: Null pointer dereference when handling empty SSLv2 messages",
          "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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          "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-7502"
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      "release_date": "2017-05-30T00:00:00+00:00",
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          "date": "2017-06-21T15:11:05+00:00",
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            "attackVector": "NETWORK",
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            "confidentialityImpact": "NONE",
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          "details": "Important"
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      "title": "nss: Null pointer dereference when handling empty SSLv2 messages"
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      "discovery_date": "2017-05-09T00:00:00+00:00",
      "ids": [
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      "notes": [
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          "category": "description",
          "text": "A flaw was found in the way memory was being allocated on the stack for user space binaries. If heap (or different memory region) and stack memory regions were adjacent to each other, an attacker could use this flaw to jump over the stack guard gap, cause controlled memory corruption on process stack or the adjacent memory region, and thus increase their privileges on the system. This is a kernel-side mitigation which increases the stack guard gap size from one page to 1 MiB to make successful exploitation of this issue more difficult.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "kernel: heap/stack gap jumping via unbounded stack allocations",
          "title": "Vulnerability summary"
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        {
          "category": "other",
          "text": "This is a kernel-side mitigation. For a related glibc mitigation please see https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-1000366 .",
          "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"
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          "date": "2017-06-21T15:11:05+00:00",
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      "scores": [
        {
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            "accessComplexity": "HIGH",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 6.2,
            "confidentialityImpact": "COMPLETE",
            "integrityImpact": "COMPLETE",
            "vectorString": "AV:L/AC:H/Au:N/C:C/I:C/A:C",
            "version": "2.0"
          },
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
          "products": [
            "Red Hat Container Development Kit 3.0"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "kernel: heap/stack gap jumping via unbounded stack allocations"
    },
    {
      "acknowledgments": [
        {
          "names": [
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          ]
        }
      ],
      "cve": "CVE-2017-1000366",
      "discovery_date": "2017-05-09T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1452543"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in the way memory was being allocated on the stack for user space binaries. If heap (or different memory region) and stack memory regions were adjacent to each other, an attacker could use this flaw to jump over the stack guard gap, cause controlled memory corruption on process stack or the adjacent memory region, and thus increase their privileges on the system. This is glibc-side mitigation which blocks processing of LD_LIBRARY_PATH for programs running in secure-execution mode and reduces the number of allocations performed by the processing of LD_AUDIT, LD_PRELOAD, and LD_HWCAP_MASK, making successful exploitation of this issue more difficult.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "glibc: heap/stack gap jumping via unbounded stack allocations",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This is a glibc-side mitigation. For a related kernel mitigation please see https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-1000364 .",
          "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"
        }
      ],
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        {
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          "category": "external",
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          "url": "https://www.cve.org/CVERecord?id=CVE-2017-1000366"
        },
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          "category": "external",
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          "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-1000366"
        },
        {
          "category": "external",
          "summary": "https://access.redhat.com/security/vulnerabilities/stackguard",
          "url": "https://access.redhat.com/security/vulnerabilities/stackguard"
        },
        {
          "category": "external",
          "summary": "https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt",
          "url": "https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt"
        }
      ],
      "release_date": "2017-06-19T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2017-06-21T15:11:05+00:00",
          "details": "The References section of this erratum contains a link to download CDK 3.0.0-2 (you must log in to download the update).",
          "product_ids": [
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          "restart_required": {
            "category": "none"
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      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "HIGH",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 6.2,
            "confidentialityImpact": "COMPLETE",
            "integrityImpact": "COMPLETE",
            "vectorString": "AV:L/AC:H/Au:N/C:C/I:C/A:C",
            "version": "2.0"
          },
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
          "products": [
            "Red Hat Container Development Kit 3.0"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "glibc: heap/stack gap jumping via unbounded stack allocations"
    }
  ]
}


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