rhsa-2019_0361
Vulnerability from csaf_redhat
Published
2019-02-18 15:44
Modified
2024-11-15 00:40
Summary
Red Hat Security Advisory: rhvm-appliance security update

Notes

Topic
An update for rhvm-appliance is now available for Red Hat Virtualization 4 for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. 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
The RHV-M Virtual Appliance automates the process of installing and configuring the Red Hat Virtualization Manager. The appliance is available to download as an OVA file from the Customer Portal. Security Fix(es): * systemd: stack overflow when calling syslog from a command with long cmdline (CVE-2018-16864) * systemd: stack overflow when receiving many journald entries (CVE-2018-16865) 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.
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.


To clipboard 

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        "title": "Details"
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        }
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      "cwe": {
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        "name": "Allocation of Resources Without Limits or Throttling"
      },
      "discovery_date": "2018-11-26T00:00:00+00:00",
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          "text": "An allocation of memory without limits, that could result in the stack clashing with another memory region, was discovered in systemd-journald when a program with long command line arguments calls syslog. A local attacker may use this flaw to crash systemd-journald or escalate privileges.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "systemd: stack overflow when calling syslog from a command with long cmdline",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This issue affects the versions of systemd as shipped with Red Hat Enterprise Linux 7. Red Hat Product Security has rated this issue as having a security impact of Important because it allows a local attacker to crash systemd-journald or escalate his privileges. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.",
          "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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          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2018-16864"
        },
        {
          "category": "external",
          "summary": "RHBZ#1653855",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1653855"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2018-16864",
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          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2018-16864",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-16864"
        },
        {
          "category": "external",
          "summary": "https://www.qualys.com/2019/01/09/system-down/system-down.txt",
          "url": "https://www.qualys.com/2019/01/09/system-down/system-down.txt"
        }
      ],
      "release_date": "2019-01-09T18:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2019-02-18T15:44:27+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/2974891",
          "product_ids": [
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            "7Server-RHEV-4-Hypervisor-7:rhvm-appliance-2:4.2-20190129.0.el7.noarch",
            "7Server-RHEV-4-Hypervisor-7:rhvm-appliance-2:4.2-20190129.0.el7.src"
          ],
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          "url": "https://access.redhat.com/errata/RHSA-2019:0361"
        },
        {
          "category": "workaround",
          "details": "To increase the time an attacker needs to exploit this flaw you could override the `StartLimitInterval=` (called StartLimitIntervalSec in newer systemd versions) and `StartLimitBurst=` settings. In this way the attack may require much longer to be successful.\n\nTo edit the journald service use `sudo systemctl edit systemd-journald.service` and add:\n```\n[Service]\nStartLimitInterval=120\nStartLimitBurst=3\n```",
          "product_ids": [
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            "7Server-RHEV-4-Hypervisor-7:rhvm-appliance-2:4.2-20190129.0.el7.noarch",
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          ]
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      ],
      "scores": [
        {
          "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": [
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            "7Server-RHEV-4-Agents-7:rhvm-appliance-2:4.2-20190129.0.el7.src",
            "7Server-RHEV-4-Hypervisor-7:rhvm-appliance-2:4.2-20190129.0.el7.noarch",
            "7Server-RHEV-4-Hypervisor-7:rhvm-appliance-2:4.2-20190129.0.el7.src"
          ]
        }
      ],
      "threats": [
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          "details": "Moderate"
        }
      ],
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    },
    {
      "acknowledgments": [
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          ]
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        "name": "Allocation of Resources Without Limits or Throttling"
      },
      "discovery_date": "2018-11-26T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1653861"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "An allocation of memory without limits, that could result in the stack clashing with another memory region, was discovered in systemd-journald when many entries are sent to the journal socket. A local attacker, or a remote one if systemd-journal-remote is used, may use this flaw to crash systemd-journald or execute code with journald privileges.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "systemd: stack overflow when receiving many journald entries",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This issue affects the versions of systemd as shipped with Red Hat Enterprise Linux 7. Red Hat Product Security has rated this issue as having a security impact of Important because it allows an attacker to crash systemd-journald or escalate his privileges. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.\n\nRed Hat Enterprise Linux 7 ships systemd-journal-remote through the optional systemd-journal-gateway package, which is not installed, nor enabled by default.",
          "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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      },
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          "category": "self",
          "summary": "Canonical URL",
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        {
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        },
        {
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          "summary": "https://www.cve.org/CVERecord?id=CVE-2018-16865",
          "url": "https://www.cve.org/CVERecord?id=CVE-2018-16865"
        },
        {
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          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2018-16865",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-16865"
        },
        {
          "category": "external",
          "summary": "https://www.qualys.com/2019/01/09/system-down/system-down.txt",
          "url": "https://www.qualys.com/2019/01/09/system-down/system-down.txt"
        }
      ],
      "release_date": "2019-01-09T18:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2019-02-18T15:44:27+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/2974891",
          "product_ids": [
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            "7Server-RHEV-4-Agents-7:rhvm-appliance-2:4.2-20190129.0.el7.src",
            "7Server-RHEV-4-Hypervisor-7:rhvm-appliance-2:4.2-20190129.0.el7.noarch",
            "7Server-RHEV-4-Hypervisor-7:rhvm-appliance-2:4.2-20190129.0.el7.src"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2019:0361"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
          "products": [
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            "7Server-RHEV-4-Agents-7:rhvm-appliance-2:4.2-20190129.0.el7.src",
            "7Server-RHEV-4-Hypervisor-7:rhvm-appliance-2:4.2-20190129.0.el7.noarch",
            "7Server-RHEV-4-Hypervisor-7:rhvm-appliance-2:4.2-20190129.0.el7.src"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "systemd: stack overflow when receiving many journald entries"
    }
  ]
}


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