csaf_redhat - rhsa-2020

rhsa-2020_3378

Vulnerability from csaf_redhat

Published

2020-08-10 09:09

Modified

2024-11-05 22:38

Summary

Red Hat Security Advisory: bind security update

Notes

Topic

An update for bind is now available for Red Hat Enterprise Linux 6.6 Advanced Update Support. 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

The Berkeley Internet Name Domain (BIND) is an implementation of the Domain Name System (DNS) protocols. BIND includes a DNS server (named); a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating correctly. Security Fix(es): * bind: BIND does not sufficiently limit the number of fetches performed when processing referrals (CVE-2020-8616) * bind: A logic error in code which checks TSIG validity can be used to trigger an assertion failure in tsig.c (CVE-2020-8617) 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.

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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          "6Server-optional-6.6.AUS:bind-utils-32:9.8.2-0.30.rc1.el6_6.11.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2020-8617"
        },
        {
          "category": "external",
          "summary": "RHBZ#1836124",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1836124"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2020-8617",
          "url": "https://www.cve.org/CVERecord?id=CVE-2020-8617"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-8617",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-8617"
        },
        {
          "category": "external",
          "summary": "https://kb.isc.org/docs/cve-2020-8617",
          "url": "https://kb.isc.org/docs/cve-2020-8617"
        }
      ],
      "release_date": "2020-05-19T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2020-08-10T09:09:43+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\n\nAfter installing the update, the BIND daemon (named) will be restarted automatically.",
          "product_ids": [
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            "6Server-6.6.AUS:bind-32:9.8.2-0.30.rc1.el6_6.11.x86_64",
            "6Server-6.6.AUS:bind-chroot-32:9.8.2-0.30.rc1.el6_6.11.x86_64",
            "6Server-6.6.AUS:bind-debuginfo-32:9.8.2-0.30.rc1.el6_6.11.i686",
            "6Server-6.6.AUS:bind-debuginfo-32:9.8.2-0.30.rc1.el6_6.11.x86_64",
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            "6Server-6.6.AUS:bind-libs-32:9.8.2-0.30.rc1.el6_6.11.x86_64",
            "6Server-6.6.AUS:bind-sdb-32:9.8.2-0.30.rc1.el6_6.11.x86_64",
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            "6Server-optional-6.6.AUS:bind-debuginfo-32:9.8.2-0.30.rc1.el6_6.11.x86_64",
            "6Server-optional-6.6.AUS:bind-devel-32:9.8.2-0.30.rc1.el6_6.11.i686",
            "6Server-optional-6.6.AUS:bind-devel-32:9.8.2-0.30.rc1.el6_6.11.x86_64",
            "6Server-optional-6.6.AUS:bind-libs-32:9.8.2-0.30.rc1.el6_6.11.i686",
            "6Server-optional-6.6.AUS:bind-libs-32:9.8.2-0.30.rc1.el6_6.11.x86_64",
            "6Server-optional-6.6.AUS:bind-sdb-32:9.8.2-0.30.rc1.el6_6.11.x86_64",
            "6Server-optional-6.6.AUS:bind-utils-32:9.8.2-0.30.rc1.el6_6.11.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2020:3378"
        },
        {
          "category": "workaround",
          "details": "BIND servers have an internally-generated TSIG session key whose name is trivially guessable, and that key exposes the vulnerability unless specifically disabled. Upstream recommends using random value in session-keyname as a workaround. This can be added to named.conf configuration file.",
          "product_ids": [
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            "6Server-6.6.AUS:bind-32:9.8.2-0.30.rc1.el6_6.11.x86_64",
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          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "6Server-6.6.AUS:bind-32:9.8.2-0.30.rc1.el6_6.11.src",
            "6Server-6.6.AUS:bind-32:9.8.2-0.30.rc1.el6_6.11.x86_64",
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      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "bind: A logic error in code which checks TSIG validity can be used to trigger an assertion failure in tsig.c"
    }
  ]
}

cve-2020-8616

Vulnerability from cvelistv5

Published

2020-05-19 14:05

Modified

2024-09-16 23:55

Severity ?

8.6 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Summary

BIND does not sufficiently limit the number of fetches performed when processing referrals

References

▼	URL	Tags
	https://kb.isc.org/docs/cve-2020-8616	x_refsource_CONFIRM
	http://www.nxnsattack.com	x_refsource_MISC
	http://www.openwall.com/lists/oss-security/2020/05/19/4	mailing-list, x_refsource_MLIST
	https://www.debian.org/security/2020/dsa-4689	vendor-advisory, x_refsource_DEBIAN
	https://security.netapp.com/advisory/ntap-20200522-0002/	x_refsource_CONFIRM
	https://usn.ubuntu.com/4365-2/	vendor-advisory, x_refsource_UBUNTU
	https://www.synology.com/security/advisory/Synology_SA_20_12	x_refsource_CONFIRM
	https://usn.ubuntu.com/4365-1/	vendor-advisory, x_refsource_UBUNTU
	https://lists.debian.org/debian-lts-announce/2020/05/msg00031.html	mailing-list, x_refsource_MLIST
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WOGCJS2XQ3SQNF4W6GLZ73LWZJ6ZZWZI/	vendor-advisory, x_refsource_FEDORA
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JKJXVBOKZ36ER3EUCR7VRB7WGHIIMPNJ/	vendor-advisory, x_refsource_FEDORA
	http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html	vendor-advisory, x_refsource_SUSE
	http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html	vendor-advisory, x_refsource_SUSE

Impacted products

▼	Vendor	Product
	ISC	BIND9

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T10:03:46.371Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
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        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://kb.isc.org/docs/cve-2020-8616"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://www.nxnsattack.com"
          },
          {
            "name": "[oss-security] 20200519 Two vulnerabilities disclosed in BIND (CVE-2020-8616 and CVE-2020-8617)",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2020/05/19/4"
          },
          {
            "name": "DSA-4689",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2020/dsa-4689"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20200522-0002/"
          },
          {
            "name": "USN-4365-2",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/4365-2/"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.synology.com/security/advisory/Synology_SA_20_12"
          },
          {
            "name": "USN-4365-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/4365-1/"
          },
          {
            "name": "[debian-lts-announce] 20200530 [SECURITY] [DLA 2227-1] bind9 security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2020/05/msg00031.html"
          },
          {
            "name": "FEDORA-2020-2d89cbcfd9",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WOGCJS2XQ3SQNF4W6GLZ73LWZJ6ZZWZI/"
          },
          {
            "name": "FEDORA-2020-f9dcd4e9d5",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JKJXVBOKZ36ER3EUCR7VRB7WGHIIMPNJ/"
          },
          {
            "name": "openSUSE-SU-2020:1699",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html"
          },
          {
            "name": "openSUSE-SU-2020:1701",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "BIND9",
          "vendor": "ISC",
          "versions": [
            {
              "status": "affected",
              "version": "9.0.0 -\u003e 9.11.18, 9.12.0 -\u003e 9.12.4-P2, 9.14.0 -\u003e 9.14.11, 9.16.0 -\u003e 9.16.2, and releases 9.17.0 -\u003e 9.17.1 of the 9.17 experimental development branch. All releases in the obsolete 9.13 and 9.15 development branches. All releases of BIND Supported Preview Edition from 9.9.3-S1 -\u003e 9.11.18-S1"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "ISC would like to thank Lior Shafir and Yehuda Afek of Tel Aviv University and Anat Bremler-Barr of Interdisciplinary Center (IDC) Herzliya for discovering and reporting this issue."
        }
      ],
      "datePublic": "2020-05-19T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "A malicious actor who intentionally exploits this lack of effective limitation on the number of fetches performed when processing referrals can, through the use of specially crafted referrals, cause a recursing server to issue a very large number of fetches in an attempt to process the referral. This has at least two potential effects: The performance of the recursing server can potentially be degraded by the additional work required to perform these fetches, and The attacker can exploit this behavior to use the recursing server as a reflector in a reflection attack with a high amplification factor."
        }
      ],
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        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
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              "description": "In order for a server performing recursion to locate records in the DNS graph it must be capable of processing referrals, such as those received when it attempts to query an authoritative server for a record which is delegated elsewhere. In its original design BIND (as well as other nameservers) does not sufficiently limit the number of fetches which may be performed while processing a referral response.  BIND 9.0.0 -\u003e 9.11.18, 9.12.0 -\u003e 9.12.4-P2, 9.14.0 -\u003e 9.14.11, 9.16.0 -\u003e 9.16.2, and releases 9.17.0 -\u003e 9.17.1 of the 9.17 experimental development branch. All releases in the obsolete 9.13 and 9.15 development branches. All releases of BIND Supported Preview Edition from 9.9.3-S1 -\u003e 9.11.18-S1.",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-10-20T11:06:38",
        "orgId": "404fd4d2-a609-4245-b543-2c944a302a22",
        "shortName": "isc"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://kb.isc.org/docs/cve-2020-8616"
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          "tags": [
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          "url": "http://www.nxnsattack.com"
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            "x_refsource_CONFIRM"
          ],
          "url": "https://security.netapp.com/advisory/ntap-20200522-0002/"
        },
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          "tags": [
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        },
        {
          "tags": [
            "x_refsource_CONFIRM"
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          "url": "https://www.synology.com/security/advisory/Synology_SA_20_12"
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          "name": "USN-4365-1",
          "tags": [
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          "url": "https://usn.ubuntu.com/4365-1/"
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        {
          "name": "[debian-lts-announce] 20200530 [SECURITY] [DLA 2227-1] bind9 security update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2020/05/msg00031.html"
        },
        {
          "name": "FEDORA-2020-2d89cbcfd9",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WOGCJS2XQ3SQNF4W6GLZ73LWZJ6ZZWZI/"
        },
        {
          "name": "FEDORA-2020-f9dcd4e9d5",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JKJXVBOKZ36ER3EUCR7VRB7WGHIIMPNJ/"
        },
        {
          "name": "openSUSE-SU-2020:1699",
          "tags": [
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cve-2020-8617

Vulnerability from cvelistv5

Published

2020-05-19 14:05

Modified

2024-09-16 20:26

Severity ?

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

A logic error in code which checks TSIG validity can be used to trigger an assertion failure in tsig.c

References

▼	URL	Tags
	https://kb.isc.org/docs/cve-2020-8617	x_refsource_CONFIRM
	http://www.openwall.com/lists/oss-security/2020/05/19/4	mailing-list, x_refsource_MLIST
	https://www.debian.org/security/2020/dsa-4689	vendor-advisory, x_refsource_DEBIAN
	https://security.netapp.com/advisory/ntap-20200522-0002/	x_refsource_CONFIRM
	http://packetstormsecurity.com/files/157836/BIND-TSIG-Denial-Of-Service.html	x_refsource_MISC
	https://usn.ubuntu.com/4365-2/	vendor-advisory, x_refsource_UBUNTU
	https://usn.ubuntu.com/4365-1/	vendor-advisory, x_refsource_UBUNTU
	https://lists.debian.org/debian-lts-announce/2020/05/msg00031.html	mailing-list, x_refsource_MLIST
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WOGCJS2XQ3SQNF4W6GLZ73LWZJ6ZZWZI/	vendor-advisory, x_refsource_FEDORA
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JKJXVBOKZ36ER3EUCR7VRB7WGHIIMPNJ/	vendor-advisory, x_refsource_FEDORA
	http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html	vendor-advisory, x_refsource_SUSE
	http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html	vendor-advisory, x_refsource_SUSE

Impacted products

▼	Vendor	Product
	ISC	BIND9

Show details on NVD website

JSON

To clipboard

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              "description": [
                {
                  "lang": "eng",
                  "value": "An error in BIND code which checks the validity of messages containing TSIG resource records can be exploited by an attacker to trigger an assertion failure in tsig.c, resulting in denial of service to clients.  BIND 9.0.0 -\u003e 9.11.18, 9.12.0 -\u003e 9.12.4-P2, 9.14.0 -\u003e 9.14.11, 9.16.0 -\u003e 9.16.2, and releases 9.17.0 -\u003e 9.17.1 of the 9.17 experimental development branch. All releases in the obsolete 9.13 and 9.15 development branches. All releases of BIND Supported Preview Edition from 9.9.3-S1 -\u003e 9.11.18-S1."
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://kb.isc.org/docs/cve-2020-8617",
              "refsource": "CONFIRM",
              "url": "https://kb.isc.org/docs/cve-2020-8617"
            },
            {
              "name": "[oss-security] 20200519 Two vulnerabilities disclosed in BIND (CVE-2020-8616 and CVE-2020-8617)",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2020/05/19/4"
            },
            {
              "name": "DSA-4689",
              "refsource": "DEBIAN",
              "url": "https://www.debian.org/security/2020/dsa-4689"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20200522-0002/",
              "refsource": "CONFIRM",
              "url": "https://security.netapp.com/advisory/ntap-20200522-0002/"
            },
            {
              "name": "http://packetstormsecurity.com/files/157836/BIND-TSIG-Denial-Of-Service.html",
              "refsource": "MISC",
              "url": "http://packetstormsecurity.com/files/157836/BIND-TSIG-Denial-Of-Service.html"
            },
            {
              "name": "USN-4365-2",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/4365-2/"
            },
            {
              "name": "USN-4365-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/4365-1/"
            },
            {
              "name": "[debian-lts-announce] 20200530 [SECURITY] [DLA 2227-1] bind9 security update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2020/05/msg00031.html"
            },
            {
              "name": "FEDORA-2020-2d89cbcfd9",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WOGCJS2XQ3SQNF4W6GLZ73LWZJ6ZZWZI/"
            },
            {
              "name": "FEDORA-2020-f9dcd4e9d5",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JKJXVBOKZ36ER3EUCR7VRB7WGHIIMPNJ/"
            },
            {
              "name": "openSUSE-SU-2020:1699",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html"
            },
            {
              "name": "openSUSE-SU-2020:1701",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html"
            }
          ]
        },
        "solution": [
          {
            "lang": "en",
            "value": "Upgrade to the patched release most closely related to your current version of BIND:\n\n    BIND 9.11.19\n    BIND 9.14.12\n    BIND 9.16.3\n\nBIND Supported Preview Edition is a special feature preview branch of BIND provided to eligible ISC support customers.\n\n    BIND 9.11.19-S1"
          }
        ],
        "source": {
          "discovery": "EXTERNAL"
        },
        "work_around": [
          {
            "lang": "en",
            "value": "None known."
          }
        ]
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "404fd4d2-a609-4245-b543-2c944a302a22",
    "assignerShortName": "isc",
    "cveId": "CVE-2020-8617",
    "datePublished": "2020-05-19T14:05:16.241486Z",
    "dateReserved": "2020-02-05T00:00:00",
    "dateUpdated": "2024-09-16T20:26:32.566Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted

rhsa-2020_3378

Vulnerability from csaf_redhat

cve-2020-8616

Vulnerability from cvelistv5

cve-2020-8617

Vulnerability from cvelistv5

Tags

Sightings

Nomenclature