csaf_redhat - rhsa-2022

rhsa-2022_1354

Vulnerability from csaf_redhat

Published

2022-04-13 14:31

Modified

2024-09-16 06:36

Summary

Red Hat Security Advisory: rh-dotnet31-curl security update

Notes

Topic

An update for rh-dotnet31-curl is now available for .NET Core on Red Hat Enterprise Linux. Red Hat Product Security has rated this update as having a security impact of Moderate. 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

.NET Core is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation. Security Fix(es): * curl: Leak of authentication credentials in URL via automatic Referer (CVE-2021-22876) * curl: Bad connection reuse due to flawed path name checks (CVE-2021-22924) * curl: Requirement to use TLS not properly enforced for IMAP, POP3, and FTP protocols (CVE-2021-22946) * curl: Server responses received before STARTTLS processed after TLS handshake (CVE-2021-22947) 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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{
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      "text": "Moderate"
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    "category": "csaf_vex",
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    "distribution": {
      "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
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        "text": "An update for rh-dotnet31-curl is now available for .NET Core on Red Hat Enterprise Linux.\n\nRed Hat Product Security has rated this update as having a security impact of Moderate. 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.",
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        "title": "Details"
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  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "the Curl project"
          ]
        },
        {
          "names": [
            "Viktor Szakats"
          ],
          "summary": "Acknowledged by upstream."
        }
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      "cve": "CVE-2021-22876",
      "cwe": {
        "id": "CWE-200",
        "name": "Exposure of Sensitive Information to an Unauthorized Actor"
      },
      "discovery_date": "2021-03-22T00:00:00+00:00",
      "ids": [
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          "system_name": "Red Hat Bugzilla ID",
          "text": "1941964"
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      "notes": [
        {
          "category": "description",
          "text": "It was discovered that libcurl did not remove authentication credentials from URLs when automatically populating the Referer HTTP request header while handling HTTP redirects. This could lead to exposure of the credentials to the server to which requests were redirected.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "curl: Leak of authentication credentials in URL via automatic Referer",
          "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"
        }
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        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
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          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "curl: Requirement to use TLS not properly enforced for IMAP, POP3, and FTP protocols"
    },
    {
      "cve": "CVE-2021-22947",
      "cwe": {
        "id": "CWE-319",
        "name": "Cleartext Transmission of Sensitive Information"
      },
      "discovery_date": "2021-09-10T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2003191"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in curl. The flaw lies in how curl handles cached or pipelined responses that it receives from either a IMAP, POP3, SMTP or FTP server before the TLS upgrade using STARTTLS. In such a scenario curl even after upgrading to TLS would trust these cached responses treating them as valid and authenticated and use them. An attacker could potentially use this flaw to carry out a Man-In-The-Middle attack. The highest threat from this vulnerability is to data confidentiality.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "curl: Server responses received before STARTTLS processed after TLS handshake",
          "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": {
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      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2021-22947"
        },
        {
          "category": "external",
          "summary": "RHBZ#2003191",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2003191"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2021-22947",
          "url": "https://www.cve.org/CVERecord?id=CVE-2021-22947"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-22947",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-22947"
        },
        {
          "category": "external",
          "summary": "https://curl.se/docs/CVE-2021-22947.html",
          "url": "https://curl.se/docs/CVE-2021-22947.html"
        }
      ],
      "release_date": "2021-09-15T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "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",
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            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N",
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      "threats": [
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          "category": "impact",
          "details": "Moderate"
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      "title": "curl: Server responses received before STARTTLS processed after TLS handshake"
    }
  ]
}

cve-2021-22924

Vulnerability from cvelistv5

Published

2021-08-05 20:16

Modified

2024-08-03 18:58

Severity

Summary

libcurl keeps previously used connections in a connection pool for subsequenttransfers to reuse, if one of them matches the setup.Due to errors in the logic, the config matching function did not take 'issuercert' into account and it compared the involved paths *case insensitively*,which could lead to libcurl reusing wrong connections.File paths are, or can be, case sensitive on many systems but not all, and caneven vary depending on used file systems.The comparison also didn't include the 'issuer cert' which a transfer can setto qualify how to verify the server certificate.

References

URL	Tags
https://hackerone.com/reports/1223565	x_refsource_MISC
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FRUCW2UVNYUDZF72DQLFQR4PJEC6CF7V/	vendor-advisory, x_refsource_FEDORA
https://lists.debian.org/debian-lts-announce/2021/08/msg00017.html	mailing-list, x_refsource_MLIST
https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc%40%3Cdev.kafka.apache.org%3E	mailing-list, x_refsource_MLIST
https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc%40%3Cusers.kafka.apache.org%3E	mailing-list, x_refsource_MLIST
https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7%40%3Cusers.kafka.apache.org%3E	mailing-list, x_refsource_MLIST
https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7%40%3Cdev.kafka.apache.org%3E	mailing-list, x_refsource_MLIST
https://www.oracle.com/security-alerts/cpuoct2021.html	x_refsource_MISC
https://security.netapp.com/advisory/ntap-20210902-0003/	x_refsource_CONFIRM
https://www.oracle.com/security-alerts/cpujan2022.html	x_refsource_MISC
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf	x_refsource_CONFIRM
https://cert-portal.siemens.com/productcert/pdf/ssa-732250.pdf	x_refsource_CONFIRM
https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf	x_refsource_CONFIRM
https://www.debian.org/security/2022/dsa-5197	vendor-advisory, x_refsource_DEBIAN
https://lists.debian.org/debian-lts-announce/2022/08/msg00017.html	mailing-list, x_refsource_MLIST

Impacted products

Vendor	Product
n/a	https://github.com/curl/curl

Show details on NVD website

JSON

To clipboard

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cve-2021-22947

Vulnerability from cvelistv5

Published

2021-09-29 00:00

Modified

2024-08-03 18:58

Severity

Summary

When curl >= 7.20.0 and <= 7.78.0 connects to an IMAP or POP3 server to retrieve data using STARTTLS to upgrade to TLS security, the server can respond and send back multiple responses at once that curl caches. curl would then upgrade to TLS but not flush the in-queue of cached responses but instead continue using and trustingthe responses it got *before* the TLS handshake as if they were authenticated.Using this flaw, it allows a Man-In-The-Middle attacker to first inject the fake responses, then pass-through the TLS traffic from the legitimate server and trick curl into sending data back to the user thinking the attacker's injected data comes from the TLS-protected server.

References

URL	Tags
https://hackerone.com/reports/1334763
https://lists.debian.org/debian-lts-announce/2021/09/msg00022.html	mailing-list
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RWLEC6YVEM2HWUBX67SDGPSY4CQB72OE/	vendor-advisory
https://www.oracle.com/security-alerts/cpuoct2021.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APOAK4X73EJTAPTSVT7IRVDMUWVXNWGD/	vendor-advisory
https://www.oracle.com/security-alerts/cpujan2022.html
https://security.netapp.com/advisory/ntap-20211029-0003/
http://seclists.org/fulldisclosure/2022/Mar/29	mailing-list
https://www.oracle.com/security-alerts/cpuapr2022.html
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
https://support.apple.com/kb/HT213183
https://www.oracle.com/security-alerts/cpujul2022.html
https://www.debian.org/security/2022/dsa-5197	vendor-advisory
https://lists.debian.org/debian-lts-announce/2022/08/msg00017.html	mailing-list
https://security.gentoo.org/glsa/202212-01	vendor-advisory

Impacted products

Vendor	Product
n/a	https://github.com/curl/curl

Show details on NVD website

JSON

To clipboard

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cve-2021-22946

Vulnerability from cvelistv5

Published

2021-09-29 00:00

Modified

2024-08-03 18:58

Severity

Summary

A user can tell curl >= 7.20.0 and <= 7.78.0 to require a successful upgrade to TLS when speaking to an IMAP, POP3 or FTP server (`--ssl-reqd` on the command line or`CURLOPT_USE_SSL` set to `CURLUSESSL_CONTROL` or `CURLUSESSL_ALL` withlibcurl). This requirement could be bypassed if the server would return a properly crafted but perfectly legitimate response.This flaw would then make curl silently continue its operations **withoutTLS** contrary to the instructions and expectations, exposing possibly sensitive data in clear text over the network.

References

URL	Tags
https://hackerone.com/reports/1334111
https://lists.debian.org/debian-lts-announce/2021/09/msg00022.html	mailing-list
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RWLEC6YVEM2HWUBX67SDGPSY4CQB72OE/	vendor-advisory
https://www.oracle.com/security-alerts/cpuoct2021.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APOAK4X73EJTAPTSVT7IRVDMUWVXNWGD/	vendor-advisory
https://www.oracle.com/security-alerts/cpujan2022.html
https://security.netapp.com/advisory/ntap-20211029-0003/
https://security.netapp.com/advisory/ntap-20220121-0008/
http://seclists.org/fulldisclosure/2022/Mar/29	mailing-list
https://www.oracle.com/security-alerts/cpuapr2022.html
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
https://support.apple.com/kb/HT213183
https://www.oracle.com/security-alerts/cpujul2022.html
https://www.debian.org/security/2022/dsa-5197	vendor-advisory
https://lists.debian.org/debian-lts-announce/2022/08/msg00017.html	mailing-list
https://security.gentoo.org/glsa/202212-01	vendor-advisory

Impacted products

Vendor	Product
n/a	https://github.com/curl/curl

Show details on NVD website

JSON

To clipboard

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    "cveId": "CVE-2021-22946",
    "datePublished": "2021-09-29T00:00:00",
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cve-2021-22876

Vulnerability from cvelistv5

Published

2021-04-01 17:45

Modified

2024-08-03 18:51

Severity

Summary

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.

References

URL	Tags
https://hackerone.com/reports/1101882	x_refsource_MISC
https://curl.se/docs/CVE-2021-22876.html	x_refsource_MISC
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ITVWPVGLFISU5BJC2BXBRYSDXTXE2YGC/	vendor-advisory, x_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KQUIOYX2KUU6FIUZVB5WWZ6JHSSYSQWJ/	vendor-advisory, x_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2ZC5BMIOKLBQJSFCHEDN2G2C2SH274BP/	vendor-advisory, x_refsource_FEDORA
https://lists.debian.org/debian-lts-announce/2021/05/msg00019.html	mailing-list, x_refsource_MLIST
https://security.gentoo.org/glsa/202105-36	vendor-advisory, x_refsource_GENTOO
https://www.oracle.com//security-alerts/cpujul2021.html	x_refsource_MISC
https://security.netapp.com/advisory/ntap-20210521-0007/	x_refsource_CONFIRM
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf	x_refsource_CONFIRM

Impacted products

Vendor	Product
n/a	https://github.com/curl/curl

Show details on NVD website

JSON

To clipboard

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