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      "text": "Important"
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    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
      "tlp": {
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        "url": "https://www.first.org/tlp/"
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    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "An update for ovirt-guest-agent-docker is now available for RHEV 4.X, RHEV-H, and Agents for Red Hat Enterprise Linux 7.\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.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "The ovirt-guest-agent-docker package provides the guest agent for Red Hat Linux Atomic Host virtual machines. The guest agent allows the Red Hat Virtualization Manager to receive internal guest events and retrieve information such as the IP address and the list of installed applications from the guest. Additionally the guest agent allows the Manager to execute specific commands, such as shut down or reboot, on guest virtual machines.\n\nSecurity Fix(es):\n\n* An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of instructions (a commonly used performance optimization). There are three primary variants of the issue which differ in the way the speculative execution can be exploited. Variant CVE-2017-5715 triggers the speculative execution by utilizing branch target injection. It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the fact that memory accesses may cause allocation into the microprocessor\u0027s data cache even for speculatively executed instructions that never actually commit (retire). As a result, an unprivileged attacker could use this flaw to cross the syscall and guest/host boundaries and read privileged memory by conducting targeted cache side-channel attacks. (CVE-2017-5715)\n\nNote: This is the ovirt-guest-agent-docker side of the CVE-2017-5715 mitigation.\n\nRed Hat would like to thank Google Project Zero for reporting this issue.\n\nBug Fix(es):\n\n* Previously, during Atomic host shutdown, the container was killed before the Guest Agent had a chance to send \u0027session-shutdown\u0027 message to VDSM host. This is now fixed. (BZ#1427849)",
        "title": "Details"
      },
      {
        "category": "legal_disclaimer",
        "text": "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.",
        "title": "Terms of Use"
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      "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.",
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    "references": [
      {
        "category": "self",
        "summary": "https://access.redhat.com/errata/RHSA-2018:0049",
        "url": "https://access.redhat.com/errata/RHSA-2018:0049"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/updates/classification/#important",
        "url": "https://access.redhat.com/security/updates/classification/#important"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/vulnerabilities/speculativeexecution",
        "url": "https://access.redhat.com/security/vulnerabilities/speculativeexecution"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/solutions/3307851",
        "url": "https://access.redhat.com/solutions/3307851"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/cve/CVE-2017-5715",
        "url": "https://access.redhat.com/security/cve/CVE-2017-5715"
      },
      {
        "category": "external",
        "summary": "1427849",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1427849"
      },
      {
        "category": "external",
        "summary": "1519780",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1519780"
      },
      {
        "category": "external",
        "summary": "1524695",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1524695"
      },
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        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2018/rhsa-2018_0049.json"
      }
    ],
    "title": "Red Hat Security Advisory: ovirt-guest-agent-docker security and bug fix update",
    "tracking": {
      "current_release_date": "2025-11-21T18:03:23+00:00",
      "generator": {
        "date": "2025-11-21T18:03:23+00:00",
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          "name": "Red Hat SDEngine",
          "version": "4.6.12"
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      "id": "RHSA-2018:0049",
      "initial_release_date": "2018-01-05T15:50:02+00:00",
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        {
          "date": "2018-01-05T15:50:02+00:00",
          "number": "1",
          "summary": "Initial version"
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        {
          "date": "2018-01-05T15:50:02+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2025-11-21T18:03:23+00:00",
          "number": "3",
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