Vulnerability from csaf_suse
Published
2022-04-21 12:57
Modified
2022-04-21 12:57
Summary
Security update for dnsmasq

Notes

Title of the patch
Security update for dnsmasq
Description of the patch
This update for dnsmasq fixes the following issues: - CVE-2021-3448: Fixed a potential DNS cache poisoning issue due to a constant outgoing port being used when for certain use cases of the --server option (bsc#1183709). - CVE-2022-0934: Fixed an invalid memory access that could lead to remote denial of service via crafted packet (bsc#1197872).
Patchnames
slessp4-dnsmasq-14941
Terms of use
CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).


To clipboard 

{
   document: {
      aggregate_severity: {
         namespace: "https://www.suse.com/support/security/rating/",
         text: "important",
      },
      category: "csaf_security_advisory",
      csaf_version: "2.0",
      distribution: {
         text: "Copyright 2024 SUSE LLC. All rights reserved.",
         tlp: {
            label: "WHITE",
            url: "https://www.first.org/tlp/",
         },
      },
      lang: "en",
      notes: [
         {
            category: "summary",
            text: "Security update for dnsmasq",
            title: "Title of the patch",
         },
         {
            category: "description",
            text: "This update for dnsmasq fixes the following issues:\n\n- CVE-2021-3448: Fixed a potential DNS cache poisoning issue due to a constant\n  outgoing port being used when for certain use cases of the --server option\n  (bsc#1183709).\n- CVE-2022-0934: Fixed an invalid memory access that could lead to remote denial\n  of service via crafted packet (bsc#1197872).\n",
            title: "Description of the patch",
         },
         {
            category: "details",
            text: "slessp4-dnsmasq-14941",
            title: "Patchnames",
         },
         {
            category: "legal_disclaimer",
            text: "CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).",
            title: "Terms of use",
         },
      ],
      publisher: {
         category: "vendor",
         contact_details: "https://www.suse.com/support/security/contact/",
         name: "SUSE Product Security Team",
         namespace: "https://www.suse.com/",
      },
      references: [
         {
            category: "external",
            summary: "SUSE ratings",
            url: "https://www.suse.com/support/security/rating/",
         },
         {
            category: "self",
            summary: "URL of this CSAF notice",
            url: "https://ftp.suse.com/pub/projects/security/csaf/suse-su-2022_14941-1.json",
         },
         {
            category: "self",
            summary: "URL for SUSE-SU-2022:14941-1",
            url: "https://www.suse.com/support/update/announcement/2022/suse-su-202214941-1/",
         },
         {
            category: "self",
            summary: "E-Mail link for SUSE-SU-2022:14941-1",
            url: "https://lists.suse.com/pipermail/sle-security-updates/2022-April/010787.html",
         },
         {
            category: "self",
            summary: "SUSE Bug 1183709",
            url: "https://bugzilla.suse.com/1183709",
         },
         {
            category: "self",
            summary: "SUSE Bug 1197872",
            url: "https://bugzilla.suse.com/1197872",
         },
         {
            category: "self",
            summary: "SUSE CVE CVE-2021-3448 page",
            url: "https://www.suse.com/security/cve/CVE-2021-3448/",
         },
         {
            category: "self",
            summary: "SUSE CVE CVE-2022-0934 page",
            url: "https://www.suse.com/security/cve/CVE-2022-0934/",
         },
      ],
      title: "Security update for dnsmasq",
      tracking: {
         current_release_date: "2022-04-21T12:57:08Z",
         generator: {
            date: "2022-04-21T12:57:08Z",
            engine: {
               name: "cve-database.git:bin/generate-csaf.pl",
               version: "1",
            },
         },
         id: "SUSE-SU-2022:14941-1",
         initial_release_date: "2022-04-21T12:57:08Z",
         revision_history: [
            {
               date: "2022-04-21T12:57:08Z",
               number: "1",
               summary: "Current version",
            },
         ],
         status: "final",
         version: "1",
      },
   },
   product_tree: {
      branches: [
         {
            branches: [
               {
                  branches: [
                     {
                        category: "product_version",
                        name: "dnsmasq-2.78-0.17.18.1.i586",
                        product: {
                           name: "dnsmasq-2.78-0.17.18.1.i586",
                           product_id: "dnsmasq-2.78-0.17.18.1.i586",
                        },
                     },
                  ],
                  category: "architecture",
                  name: "i586",
               },
               {
                  branches: [
                     {
                        category: "product_version",
                        name: "dnsmasq-2.78-0.17.18.1.ppc64",
                        product: {
                           name: "dnsmasq-2.78-0.17.18.1.ppc64",
                           product_id: "dnsmasq-2.78-0.17.18.1.ppc64",
                        },
                     },
                  ],
                  category: "architecture",
                  name: "ppc64",
               },
               {
                  branches: [
                     {
                        category: "product_version",
                        name: "dnsmasq-2.78-0.17.18.1.s390x",
                        product: {
                           name: "dnsmasq-2.78-0.17.18.1.s390x",
                           product_id: "dnsmasq-2.78-0.17.18.1.s390x",
                        },
                     },
                  ],
                  category: "architecture",
                  name: "s390x",
               },
               {
                  branches: [
                     {
                        category: "product_version",
                        name: "dnsmasq-2.78-0.17.18.1.x86_64",
                        product: {
                           name: "dnsmasq-2.78-0.17.18.1.x86_64",
                           product_id: "dnsmasq-2.78-0.17.18.1.x86_64",
                        },
                     },
                  ],
                  category: "architecture",
                  name: "x86_64",
               },
               {
                  branches: [
                     {
                        category: "product_name",
                        name: "SUSE Linux Enterprise Server 11 SP4-LTSS",
                        product: {
                           name: "SUSE Linux Enterprise Server 11 SP4-LTSS",
                           product_id: "SUSE Linux Enterprise Server 11 SP4-LTSS",
                           product_identification_helper: {
                              cpe: "cpe:/o:suse:suse_sles:11:sp4",
                           },
                        },
                     },
                  ],
                  category: "product_family",
                  name: "SUSE Linux Enterprise",
               },
            ],
            category: "vendor",
            name: "SUSE",
         },
      ],
      relationships: [
         {
            category: "default_component_of",
            full_product_name: {
               name: "dnsmasq-2.78-0.17.18.1.i586 as component of SUSE Linux Enterprise Server 11 SP4-LTSS",
               product_id: "SUSE Linux Enterprise Server 11 SP4-LTSS:dnsmasq-2.78-0.17.18.1.i586",
            },
            product_reference: "dnsmasq-2.78-0.17.18.1.i586",
            relates_to_product_reference: "SUSE Linux Enterprise Server 11 SP4-LTSS",
         },
         {
            category: "default_component_of",
            full_product_name: {
               name: "dnsmasq-2.78-0.17.18.1.ppc64 as component of SUSE Linux Enterprise Server 11 SP4-LTSS",
               product_id: "SUSE Linux Enterprise Server 11 SP4-LTSS:dnsmasq-2.78-0.17.18.1.ppc64",
            },
            product_reference: "dnsmasq-2.78-0.17.18.1.ppc64",
            relates_to_product_reference: "SUSE Linux Enterprise Server 11 SP4-LTSS",
         },
         {
            category: "default_component_of",
            full_product_name: {
               name: "dnsmasq-2.78-0.17.18.1.s390x as component of SUSE Linux Enterprise Server 11 SP4-LTSS",
               product_id: "SUSE Linux Enterprise Server 11 SP4-LTSS:dnsmasq-2.78-0.17.18.1.s390x",
            },
            product_reference: "dnsmasq-2.78-0.17.18.1.s390x",
            relates_to_product_reference: "SUSE Linux Enterprise Server 11 SP4-LTSS",
         },
         {
            category: "default_component_of",
            full_product_name: {
               name: "dnsmasq-2.78-0.17.18.1.x86_64 as component of SUSE Linux Enterprise Server 11 SP4-LTSS",
               product_id: "SUSE Linux Enterprise Server 11 SP4-LTSS:dnsmasq-2.78-0.17.18.1.x86_64",
            },
            product_reference: "dnsmasq-2.78-0.17.18.1.x86_64",
            relates_to_product_reference: "SUSE Linux Enterprise Server 11 SP4-LTSS",
         },
      ],
   },
   vulnerabilities: [
      {
         cve: "CVE-2021-3448",
         ids: [
            {
               system_name: "SUSE CVE Page",
               text: "https://www.suse.com/security/cve/CVE-2021-3448",
            },
         ],
         notes: [
            {
               category: "general",
               text: "A flaw was found in dnsmasq in versions before 2.85. When configured to use a specific server for a given network interface, dnsmasq uses a fixed port while forwarding queries. An attacker on the network, able to find the outgoing port used by dnsmasq, only needs to guess the random transmission ID to forge a reply and get it accepted by dnsmasq. This flaw makes a DNS Cache Poisoning attack much easier. The highest threat from this vulnerability is to data integrity.",
               title: "CVE description",
            },
         ],
         product_status: {
            recommended: [
               "SUSE Linux Enterprise Server 11 SP4-LTSS:dnsmasq-2.78-0.17.18.1.i586",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:dnsmasq-2.78-0.17.18.1.ppc64",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:dnsmasq-2.78-0.17.18.1.s390x",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:dnsmasq-2.78-0.17.18.1.x86_64",
            ],
         },
         references: [
            {
               category: "external",
               summary: "CVE-2021-3448",
               url: "https://www.suse.com/security/cve/CVE-2021-3448",
            },
            {
               category: "external",
               summary: "SUSE Bug 1183709 for CVE-2021-3448",
               url: "https://bugzilla.suse.com/1183709",
            },
         ],
         remediations: [
            {
               category: "vendor_fix",
               details: "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
               product_ids: [
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:dnsmasq-2.78-0.17.18.1.i586",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:dnsmasq-2.78-0.17.18.1.ppc64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:dnsmasq-2.78-0.17.18.1.s390x",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:dnsmasq-2.78-0.17.18.1.x86_64",
               ],
            },
         ],
         scores: [
            {
               cvss_v3: {
                  baseScore: 4,
                  baseSeverity: "MEDIUM",
                  vectorString: "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N",
                  version: "3.1",
               },
               products: [
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:dnsmasq-2.78-0.17.18.1.i586",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:dnsmasq-2.78-0.17.18.1.ppc64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:dnsmasq-2.78-0.17.18.1.s390x",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:dnsmasq-2.78-0.17.18.1.x86_64",
               ],
            },
         ],
         threats: [
            {
               category: "impact",
               date: "2022-04-21T12:57:08Z",
               details: "low",
            },
         ],
         title: "CVE-2021-3448",
      },
      {
         cve: "CVE-2022-0934",
         ids: [
            {
               system_name: "SUSE CVE Page",
               text: "https://www.suse.com/security/cve/CVE-2022-0934",
            },
         ],
         notes: [
            {
               category: "general",
               text: "A single-byte, non-arbitrary write/use-after-free flaw was found in dnsmasq. This flaw allows an attacker who sends a crafted packet processed by dnsmasq, potentially causing a denial of service.",
               title: "CVE description",
            },
         ],
         product_status: {
            recommended: [
               "SUSE Linux Enterprise Server 11 SP4-LTSS:dnsmasq-2.78-0.17.18.1.i586",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:dnsmasq-2.78-0.17.18.1.ppc64",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:dnsmasq-2.78-0.17.18.1.s390x",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:dnsmasq-2.78-0.17.18.1.x86_64",
            ],
         },
         references: [
            {
               category: "external",
               summary: "CVE-2022-0934",
               url: "https://www.suse.com/security/cve/CVE-2022-0934",
            },
            {
               category: "external",
               summary: "SUSE Bug 1197872 for CVE-2022-0934",
               url: "https://bugzilla.suse.com/1197872",
            },
         ],
         remediations: [
            {
               category: "vendor_fix",
               details: "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
               product_ids: [
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:dnsmasq-2.78-0.17.18.1.i586",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:dnsmasq-2.78-0.17.18.1.ppc64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:dnsmasq-2.78-0.17.18.1.s390x",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:dnsmasq-2.78-0.17.18.1.x86_64",
               ],
            },
         ],
         scores: [
            {
               cvss_v3: {
                  baseScore: 6.5,
                  baseSeverity: "MEDIUM",
                  vectorString: "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
                  version: "3.1",
               },
               products: [
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:dnsmasq-2.78-0.17.18.1.i586",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:dnsmasq-2.78-0.17.18.1.ppc64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:dnsmasq-2.78-0.17.18.1.s390x",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:dnsmasq-2.78-0.17.18.1.x86_64",
               ],
            },
         ],
         threats: [
            {
               category: "impact",
               date: "2022-04-21T12:57:08Z",
               details: "moderate",
            },
         ],
         title: "CVE-2022-0934",
      },
   ],
}


Log in or create an account to share your comment.

Security Advisory comment format.

This schema specifies the format of a comment related to a security advisory.

UUIDv4 of the comment
UUIDv4 of the Vulnerability-Lookup instance
When the comment was created originally
When the comment was last updated
Title of the comment
Description of the comment
The identifier of the vulnerability (CVE ID, GHSA-ID, PYSEC ID, etc.).



Tags
Taxonomy of the tags.




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.