rhsa-2019_3391
Vulnerability from csaf_redhat
Published
2019-11-05 21:14
Modified
2024-11-05 21:32
Summary
Red Hat Security Advisory: libreswan security and bug fix update

Notes

Topic
An update for libreswan is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Low. 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
Libreswan is an implementation of IPsec and IKE for Linux. IPsec is the Internet Protocol Security and uses strong cryptography to provide both authentication and encryption services. These services allow you to build secure tunnels through untrusted networks such as virtual private network (VPN). The following packages have been upgraded to a later upstream version: libreswan (3.29). (BZ#1738853) Security Fix(es): * libreswan: vulnerability in the processing of IKEv1 informational packets due to missing integrity check (CVE-2019-10155) 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. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.1 Release Notes linked from 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.


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      "cve": "CVE-2019-10155",
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        "name": "Improper Validation of Integrity Check Value"
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          "category": "description",
          "text": "A vulnerability was found in the Libreswan Project. It was discovered that libreswan, strongswan, and openswan did not verify the integrity check value for received IKEv1 Informational Exchange packets.",
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          "text": "libreswan: vulnerability in the processing of IKEv1 informational packets due to missing integrity check",
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        {
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          "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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          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2019-10155"
        },
        {
          "category": "external",
          "summary": "RHBZ#1714141",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1714141"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2019-10155",
          "url": "https://www.cve.org/CVERecord?id=CVE-2019-10155"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-10155",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-10155"
        },
        {
          "category": "external",
          "summary": "https://libreswan.org/security/CVE-2019-10155/",
          "url": "https://libreswan.org/security/CVE-2019-10155/"
        }
      ],
      "release_date": "2019-06-10T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2019-11-05T21:14:53+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/11258",
          "product_ids": [
            "AppStream-8.1.0:libreswan-0:3.29-6.el8.aarch64",
            "AppStream-8.1.0:libreswan-0:3.29-6.el8.ppc64le",
            "AppStream-8.1.0:libreswan-0:3.29-6.el8.s390x",
            "AppStream-8.1.0:libreswan-0:3.29-6.el8.src",
            "AppStream-8.1.0:libreswan-0:3.29-6.el8.x86_64",
            "AppStream-8.1.0:libreswan-debuginfo-0:3.29-6.el8.aarch64",
            "AppStream-8.1.0:libreswan-debuginfo-0:3.29-6.el8.ppc64le",
            "AppStream-8.1.0:libreswan-debuginfo-0:3.29-6.el8.s390x",
            "AppStream-8.1.0:libreswan-debuginfo-0:3.29-6.el8.x86_64",
            "AppStream-8.1.0:libreswan-debugsource-0:3.29-6.el8.aarch64",
            "AppStream-8.1.0:libreswan-debugsource-0:3.29-6.el8.ppc64le",
            "AppStream-8.1.0:libreswan-debugsource-0:3.29-6.el8.s390x",
            "AppStream-8.1.0:libreswan-debugsource-0:3.29-6.el8.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2019:3391"
        },
        {
          "category": "workaround",
          "details": "If all IKE peers support IKEv2, it is possible to reconfigure IKEv1 connections to use IKEv2 via the \"ikev2=insist\" keyword.",
          "product_ids": [
            "AppStream-8.1.0:libreswan-0:3.29-6.el8.aarch64",
            "AppStream-8.1.0:libreswan-0:3.29-6.el8.ppc64le",
            "AppStream-8.1.0:libreswan-0:3.29-6.el8.s390x",
            "AppStream-8.1.0:libreswan-0:3.29-6.el8.src",
            "AppStream-8.1.0:libreswan-0:3.29-6.el8.x86_64",
            "AppStream-8.1.0:libreswan-debuginfo-0:3.29-6.el8.aarch64",
            "AppStream-8.1.0:libreswan-debuginfo-0:3.29-6.el8.ppc64le",
            "AppStream-8.1.0:libreswan-debuginfo-0:3.29-6.el8.s390x",
            "AppStream-8.1.0:libreswan-debuginfo-0:3.29-6.el8.x86_64",
            "AppStream-8.1.0:libreswan-debugsource-0:3.29-6.el8.aarch64",
            "AppStream-8.1.0:libreswan-debugsource-0:3.29-6.el8.ppc64le",
            "AppStream-8.1.0:libreswan-debugsource-0:3.29-6.el8.s390x",
            "AppStream-8.1.0:libreswan-debugsource-0:3.29-6.el8.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 3.1,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.0"
          },
          "products": [
            "AppStream-8.1.0:libreswan-0:3.29-6.el8.aarch64",
            "AppStream-8.1.0:libreswan-0:3.29-6.el8.ppc64le",
            "AppStream-8.1.0:libreswan-0:3.29-6.el8.s390x",
            "AppStream-8.1.0:libreswan-0:3.29-6.el8.src",
            "AppStream-8.1.0:libreswan-0:3.29-6.el8.x86_64",
            "AppStream-8.1.0:libreswan-debuginfo-0:3.29-6.el8.aarch64",
            "AppStream-8.1.0:libreswan-debuginfo-0:3.29-6.el8.ppc64le",
            "AppStream-8.1.0:libreswan-debuginfo-0:3.29-6.el8.s390x",
            "AppStream-8.1.0:libreswan-debuginfo-0:3.29-6.el8.x86_64",
            "AppStream-8.1.0:libreswan-debugsource-0:3.29-6.el8.aarch64",
            "AppStream-8.1.0:libreswan-debugsource-0:3.29-6.el8.ppc64le",
            "AppStream-8.1.0:libreswan-debugsource-0:3.29-6.el8.s390x",
            "AppStream-8.1.0:libreswan-debugsource-0:3.29-6.el8.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Low"
        }
      ],
      "title": "libreswan: vulnerability in the processing of IKEv1 informational packets due to missing integrity check"
    },
    {
      "cve": "CVE-2019-12312",
      "cwe": {
        "id": "CWE-476",
        "name": "NULL Pointer Dereference"
      },
      "discovery_date": "2019-06-03T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1716918"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "In Libreswan 3.27 an assertion failure can lead to a pluto IKE daemon restart. An attacker can trigger a NULL pointer dereference by initiating an IKEv2 IKE_SA_INIT exchange, followed by a bogus INFORMATIONAL exchange instead of the normallly expected IKE_AUTH exchange. This affects send_v2N_spi_response_from_state() in programs/pluto/ikev2_send.c that will then trigger a NULL pointer dereference leading to a restart of libreswan.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "libreswan: null-pointer dereference by sending two IKEv2 packets",
          "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": {
        "fixed": [
          "AppStream-8.1.0:libreswan-0:3.29-6.el8.aarch64",
          "AppStream-8.1.0:libreswan-0:3.29-6.el8.ppc64le",
          "AppStream-8.1.0:libreswan-0:3.29-6.el8.s390x",
          "AppStream-8.1.0:libreswan-0:3.29-6.el8.src",
          "AppStream-8.1.0:libreswan-0:3.29-6.el8.x86_64",
          "AppStream-8.1.0:libreswan-debuginfo-0:3.29-6.el8.aarch64",
          "AppStream-8.1.0:libreswan-debuginfo-0:3.29-6.el8.ppc64le",
          "AppStream-8.1.0:libreswan-debuginfo-0:3.29-6.el8.s390x",
          "AppStream-8.1.0:libreswan-debuginfo-0:3.29-6.el8.x86_64",
          "AppStream-8.1.0:libreswan-debugsource-0:3.29-6.el8.aarch64",
          "AppStream-8.1.0:libreswan-debugsource-0:3.29-6.el8.ppc64le",
          "AppStream-8.1.0:libreswan-debugsource-0:3.29-6.el8.s390x",
          "AppStream-8.1.0:libreswan-debugsource-0:3.29-6.el8.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2019-12312"
        },
        {
          "category": "external",
          "summary": "RHBZ#1716918",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1716918"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2019-12312",
          "url": "https://www.cve.org/CVERecord?id=CVE-2019-12312"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-12312",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-12312"
        }
      ],
      "release_date": "2019-05-12T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2019-11-05T21:14:53+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/11258",
          "product_ids": [
            "AppStream-8.1.0:libreswan-0:3.29-6.el8.aarch64",
            "AppStream-8.1.0:libreswan-0:3.29-6.el8.ppc64le",
            "AppStream-8.1.0:libreswan-0:3.29-6.el8.s390x",
            "AppStream-8.1.0:libreswan-0:3.29-6.el8.src",
            "AppStream-8.1.0:libreswan-0:3.29-6.el8.x86_64",
            "AppStream-8.1.0:libreswan-debuginfo-0:3.29-6.el8.aarch64",
            "AppStream-8.1.0:libreswan-debuginfo-0:3.29-6.el8.ppc64le",
            "AppStream-8.1.0:libreswan-debuginfo-0:3.29-6.el8.s390x",
            "AppStream-8.1.0:libreswan-debuginfo-0:3.29-6.el8.x86_64",
            "AppStream-8.1.0:libreswan-debugsource-0:3.29-6.el8.aarch64",
            "AppStream-8.1.0:libreswan-debugsource-0:3.29-6.el8.ppc64le",
            "AppStream-8.1.0:libreswan-debugsource-0:3.29-6.el8.s390x",
            "AppStream-8.1.0:libreswan-debugsource-0:3.29-6.el8.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2019:3391"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.0"
          },
          "products": [
            "AppStream-8.1.0:libreswan-0:3.29-6.el8.aarch64",
            "AppStream-8.1.0:libreswan-0:3.29-6.el8.ppc64le",
            "AppStream-8.1.0:libreswan-0:3.29-6.el8.s390x",
            "AppStream-8.1.0:libreswan-0:3.29-6.el8.src",
            "AppStream-8.1.0:libreswan-0:3.29-6.el8.x86_64",
            "AppStream-8.1.0:libreswan-debuginfo-0:3.29-6.el8.aarch64",
            "AppStream-8.1.0:libreswan-debuginfo-0:3.29-6.el8.ppc64le",
            "AppStream-8.1.0:libreswan-debuginfo-0:3.29-6.el8.s390x",
            "AppStream-8.1.0:libreswan-debuginfo-0:3.29-6.el8.x86_64",
            "AppStream-8.1.0:libreswan-debugsource-0:3.29-6.el8.aarch64",
            "AppStream-8.1.0:libreswan-debugsource-0:3.29-6.el8.ppc64le",
            "AppStream-8.1.0:libreswan-debugsource-0:3.29-6.el8.s390x",
            "AppStream-8.1.0:libreswan-debugsource-0:3.29-6.el8.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "libreswan: null-pointer dereference by sending two IKEv2 packets"
    }
  ]
}


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