RHSA-2014:0979

Vulnerability from csaf_redhat - Published: 2014-07-29 14:39 - Updated: 2026-06-27 11:04
Summary
Red Hat Security Advisory: rhev-hypervisor6 security and bug fix update
Severity
Moderate
Notes
Topic: An updated rhev-hypervisor6 package that fixes one security issue is now available. The Red Hat Security Response Team has rated this update as having Moderate 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: The rhev-hypervisor6 package provides a Red Hat Enterprise Virtualization Hypervisor ISO disk image. The Red Hat Enterprise Virtualization Hypervisor is a dedicated Kernel-based Virtual Machine (KVM) hypervisor. It includes everything necessary to run and manage virtual machines: a subset of the Red Hat Enterprise Linux operating environment and the Red Hat Enterprise Virtualization Agent. Note: Red Hat Enterprise Virtualization Hypervisor is only available for the Intel 64 and AMD64 architectures with virtualization extensions. It was found that NSS accepted weak Diffie-Hellman Key exchange (DHKE) parameters. This could possibly lead to weak encryption being used in communication between the client and the server. (CVE-2014-1491) Red Hat would like to thank the Mozilla project for reporting the CVE-2014-1491 issue. Upstream acknowledges Antoine Delignat-Lavaud and Karthikeyan Bhargavan as the original reporters of CVE-2014-1491. This update includes changes to the rhev-hypervisor component: * The most recent build of rhev-hypervisor is included in version 3.4.1. (BZ#1118298) This updated package also provides updated components that include fixes for various security issues. These issues have no security impact on Red Hat Enterprise Virtualization Hypervisor itself, however. The security fixes included in this update address the following CVE numbers: CVE-2014-4699 and CVE-2014-4943 (kernel issues) CVE-2014-4607 (lzo issue) CVE-2013-1740, CVE-2014-1490, CVE-2014-1492, CVE-2014-1545, and CVE-2014-1544 (nss and nspr issues) Users of the Red Hat Enterprise Virtualization Hypervisor are advised to upgrade to this updated package.
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.
CVE-2014-1491

It was found that NSS accepted weak Diffie-Hellman Key exchange (DHKE) parameters. This could possibly lead to weak encryption being used in communication between the client and the server.

4.3 ()
AV:N/AC:M/Au:N/C:P/I:N/A:N
CWE-358 - Improperly Implemented Security Check for Standard
Affected products
Product Identifier Version Remediation
Unresolved product id: 6Server-RHEV-Hypervisor:rhev-hypervisor6-0:6.5-20140725.0.el6ev.noarch —
Vendor Fix fix
Threats
Impact Moderate
References
Acknowledgments
Mozilla project
Antoine Delignat-Lavaud Karthikeyan Bhargavan
To clipboard 

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        "text": "The rhev-hypervisor6 package provides a Red Hat Enterprise Virtualization\nHypervisor ISO disk image. The Red Hat Enterprise Virtualization Hypervisor\nis a dedicated Kernel-based Virtual Machine (KVM) hypervisor. It includes\neverything necessary to run and manage virtual machines: a subset of the\nRed Hat Enterprise Linux operating environment and the Red Hat Enterprise\nVirtualization Agent.\n\nNote: Red Hat Enterprise Virtualization Hypervisor is only available for\nthe Intel 64 and AMD64 architectures with virtualization extensions.\n\nIt was found that NSS accepted weak Diffie-Hellman Key exchange (DHKE)\nparameters. This could possibly lead to weak encryption being used in\ncommunication between the client and the server. (CVE-2014-1491)\n\nRed Hat would like to thank the Mozilla project for reporting the\nCVE-2014-1491 issue. Upstream acknowledges Antoine Delignat-Lavaud and\nKarthikeyan Bhargavan as the original reporters of CVE-2014-1491.\n\nThis update includes changes to the rhev-hypervisor component:\n\n* The most recent build of rhev-hypervisor is included in version 3.4.1.\n(BZ#1118298)\n\nThis updated package also provides updated components that include fixes\nfor various security issues. These issues have no security impact on Red\nHat Enterprise Virtualization Hypervisor itself, however. The security\nfixes included in this update address the following CVE numbers:\n\nCVE-2014-4699 and CVE-2014-4943 (kernel issues)\n\nCVE-2014-4607 (lzo issue)\n\nCVE-2013-1740, CVE-2014-1490, CVE-2014-1492, CVE-2014-1545, and\nCVE-2014-1544 (nss and nspr issues)\n\nUsers of the Red Hat Enterprise Virtualization Hypervisor are advised to\nupgrade to this updated package.",
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          "text": "It was found that NSS accepted weak Diffie-Hellman Key exchange (DHKE) parameters. This could possibly lead to weak encryption being used in communication between the client and the server.",
          "title": "Vulnerability description"
        },
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          "text": "nss: Do not allow p-1 as a public DH value (MFSA 2014-12)",
          "title": "Vulnerability summary"
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        {
          "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.",
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        },
        {
          "category": "external",
          "summary": "http://www.mozilla.org/security/announce/2014/mfsa2014-12.html",
          "url": "http://www.mozilla.org/security/announce/2014/mfsa2014-12.html"
        }
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      "remediations": [
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          "date": "2014-07-29T14:39:50+00:00",
          "details": "This update is available via the Red Hat Network. Details on how to use the\nRed Hat Network to apply this update are available at\nhttps://access.redhat.com/articles/11258\n\nTo upgrade Hypervisors in Red Hat Enterprise Virtualization environments\nusing the disk image provided by this package, refer to:\n\nhttps://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Hypervisor_Deployment_Guide/chap-Deployment_Guide-Upgrading_Red_Hat_Enterprise_Virtualization_Hypervisors.html",
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            "accessVector": "NETWORK",
            "authentication": "NONE",
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            "baseScore": 4.3,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
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          "details": "Moderate"
        }
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      "title": "nss: Do not allow p-1 as a public DH value (MFSA 2014-12)"
    }
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}



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