Vulnerability from csaf_suse
Published
2021-04-01 15:45
Modified
2021-04-01 15:45
Summary
Security update for curl

Notes

Title of the patch
Security update for curl
Description of the patch
This update for curl fixes the following issues: - CVE-2021-22890: TLS 1.3 session ticket proxy host mixup (bsc#1183934) - CVE-2021-22876: Automatic referer leaks credentials (bsc#1183933)
Patchnames
SUSE-2021-1006,SUSE-SLE-Module-Basesystem-15-SP2-2021-1006,SUSE-SUSE-MicroOS-5.0-2021-1006
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 

{
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         text: "moderate",
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      csaf_version: "2.0",
      distribution: {
         text: "Copyright 2024 SUSE LLC. All rights reserved.",
         tlp: {
            label: "WHITE",
            url: "https://www.first.org/tlp/",
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      },
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      notes: [
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            category: "summary",
            text: "Security update for curl",
            title: "Title of the patch",
         },
         {
            category: "description",
            text: "This update for curl fixes the following issues:\n\n- CVE-2021-22890: TLS 1.3 session ticket proxy host mixup (bsc#1183934)\n- CVE-2021-22876: Automatic referer leaks credentials (bsc#1183933)\n",
            title: "Description of the patch",
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            title: "Patchnames",
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            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: {
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         contact_details: "https://www.suse.com/support/security/contact/",
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            summary: "SUSE ratings",
            url: "https://www.suse.com/support/security/rating/",
         },
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            relates_to_product_reference: "SUSE Linux Enterprise Module for Basesystem 15 SP2",
         },
         {
            category: "default_component_of",
            full_product_name: {
               name: "curl-7.66.0-4.14.1.aarch64 as component of SUSE Linux Enterprise Micro 5.0",
               product_id: "SUSE Linux Enterprise Micro 5.0:curl-7.66.0-4.14.1.aarch64",
            },
            product_reference: "curl-7.66.0-4.14.1.aarch64",
            relates_to_product_reference: "SUSE Linux Enterprise Micro 5.0",
         },
         {
            category: "default_component_of",
            full_product_name: {
               name: "curl-7.66.0-4.14.1.x86_64 as component of SUSE Linux Enterprise Micro 5.0",
               product_id: "SUSE Linux Enterprise Micro 5.0:curl-7.66.0-4.14.1.x86_64",
            },
            product_reference: "curl-7.66.0-4.14.1.x86_64",
            relates_to_product_reference: "SUSE Linux Enterprise Micro 5.0",
         },
         {
            category: "default_component_of",
            full_product_name: {
               name: "libcurl4-7.66.0-4.14.1.aarch64 as component of SUSE Linux Enterprise Micro 5.0",
               product_id: "SUSE Linux Enterprise Micro 5.0:libcurl4-7.66.0-4.14.1.aarch64",
            },
            product_reference: "libcurl4-7.66.0-4.14.1.aarch64",
            relates_to_product_reference: "SUSE Linux Enterprise Micro 5.0",
         },
         {
            category: "default_component_of",
            full_product_name: {
               name: "libcurl4-7.66.0-4.14.1.x86_64 as component of SUSE Linux Enterprise Micro 5.0",
               product_id: "SUSE Linux Enterprise Micro 5.0:libcurl4-7.66.0-4.14.1.x86_64",
            },
            product_reference: "libcurl4-7.66.0-4.14.1.x86_64",
            relates_to_product_reference: "SUSE Linux Enterprise Micro 5.0",
         },
      ],
   },
   vulnerabilities: [
      {
         cve: "CVE-2021-22876",
         ids: [
            {
               system_name: "SUSE CVE Page",
               text: "https://www.suse.com/security/cve/CVE-2021-22876",
            },
         ],
         notes: [
            {
               category: "general",
               text: "curl 7.1.1 to and including 7.75.0 is vulnerable to an \"Exposure of Private Personal Information to an Unauthorized Actor\" by leaking credentials in the HTTP Referer: header. libcurl does not strip off user credentials from the URL when automatically populating the Referer: HTTP request header field in outgoing HTTP requests, and therefore risks leaking sensitive data to the server that is the target of the second HTTP request.",
               title: "CVE description",
            },
         ],
         product_status: {
            recommended: [
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               "SUSE Linux Enterprise Micro 5.0:curl-7.66.0-4.14.1.x86_64",
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               "SUSE Linux Enterprise Module for Basesystem 15 SP2:curl-7.66.0-4.14.1.ppc64le",
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               "SUSE Linux Enterprise Module for Basesystem 15 SP2:libcurl-devel-7.66.0-4.14.1.s390x",
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               "SUSE Linux Enterprise Module for Basesystem 15 SP2:libcurl4-32bit-7.66.0-4.14.1.x86_64",
               "SUSE Linux Enterprise Module for Basesystem 15 SP2:libcurl4-7.66.0-4.14.1.aarch64",
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               "SUSE Linux Enterprise Module for Basesystem 15 SP2:libcurl4-7.66.0-4.14.1.x86_64",
            ],
         },
         references: [
            {
               category: "external",
               summary: "CVE-2021-22876",
               url: "https://www.suse.com/security/cve/CVE-2021-22876",
            },
            {
               category: "external",
               summary: "SUSE Bug 1183933 for CVE-2021-22876",
               url: "https://bugzilla.suse.com/1183933",
            },
         ],
         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 Micro 5.0:curl-7.66.0-4.14.1.aarch64",
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               ],
            },
         ],
         scores: [
            {
               cvss_v3: {
                  baseScore: 6.1,
                  baseSeverity: "MEDIUM",
                  vectorString: "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N",
                  version: "3.1",
               },
               products: [
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                  "SUSE Linux Enterprise Module for Basesystem 15 SP2:libcurl4-7.66.0-4.14.1.x86_64",
               ],
            },
         ],
         threats: [
            {
               category: "impact",
               date: "2021-04-01T15:45:04Z",
               details: "moderate",
            },
         ],
         title: "CVE-2021-22876",
      },
      {
         cve: "CVE-2021-22890",
         ids: [
            {
               system_name: "SUSE CVE Page",
               text: "https://www.suse.com/security/cve/CVE-2021-22890",
            },
         ],
         notes: [
            {
               category: "general",
               text: "curl 7.63.0 to and including 7.75.0 includes vulnerability that allows a malicious HTTPS proxy to MITM a connection due to bad handling of TLS 1.3 session tickets. When using a HTTPS proxy and TLS 1.3, libcurl can confuse session tickets arriving from the HTTPS proxy but work as if they arrived from the remote server and then wrongly \"short-cut\" the host handshake. When confusing the tickets, a HTTPS proxy can trick libcurl to use the wrong session ticket resume for the host and thereby circumvent the server TLS certificate check and make a MITM attack to be possible to perform unnoticed. Note that such a malicious HTTPS proxy needs to provide a certificate that curl will accept for the MITMed server for an attack to work - unless curl has been told to ignore the server certificate check.",
               title: "CVE description",
            },
         ],
         product_status: {
            recommended: [
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               url: "https://www.suse.com/security/cve/CVE-2021-22890",
            },
            {
               category: "external",
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               url: "https://bugzilla.suse.com/1183934",
            },
         ],
         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",
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         ],
         scores: [
            {
               cvss_v3: {
                  baseScore: 3.1,
                  baseSeverity: "LOW",
                  vectorString: "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N",
                  version: "3.1",
               },
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                  "SUSE Linux Enterprise Module for Basesystem 15 SP2:libcurl4-7.66.0-4.14.1.x86_64",
               ],
            },
         ],
         threats: [
            {
               category: "impact",
               date: "2021-04-01T15:45:04Z",
               details: "low",
            },
         ],
         title: "CVE-2021-22890",
      },
   ],
}


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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.).



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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.
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  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
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