var-202303-1599
Vulnerability from variot

An authentication bypass vulnerability exists in libcurl prior to v8.0.0 where it reuses a previously established SSH connection despite the fact that an SSH option was modified, which should have prevented reuse. libcurl maintains a pool of previously used connections to reuse them for subsequent transfers if the configurations match. However, two SSH settings were omitted from the configuration check, allowing them to match easily, potentially leading to the reuse of an inappropriate connection. Haxx of libcurl Products from other vendors have authentication vulnerabilities.Information may be obtained. Description This CVE is under investigation by Red Hat Product Security. ========================================================================== Ubuntu Security Notice USN-5964-1 March 20, 2023

curl vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 22.10
  • Ubuntu 22.04 LTS
  • Ubuntu 20.04 LTS
  • Ubuntu 18.04 LTS

Summary:

Several security issues were fixed in curl.

Software Description: - curl: HTTP, HTTPS, and FTP client and client libraries

Details:

Harry Sintonen discovered that curl incorrectly handled certain TELNET connection options. Due to lack of proper input scrubbing, curl could pass on user name and telnet options to the server as provided, contrary to expectations. (CVE-2023-27533)

Harry Sintonen discovered that curl incorrectly handled special tilde characters when used with SFTP paths. A remote attacker could possibly use this issue to circumvent filtering. (CVE-2023-27534)

Harry Sintonen discovered that curl incorrectly reused certain FTP connections. This could lead to the wrong credentials being reused, contrary to expectations. (CVE-2023-27535)

Harry Sintonen discovered that curl incorrectly reused connections when the GSS delegation option had been changed. This could lead to the option being reused, contrary to expectations. (CVE-2023-27536)

Harry Sintonen discovered that curl incorrectly reused certain SSH connections. This could lead to the wrong credentials being reused, contrary to expectations. (CVE-2023-27538)

Update instructions:

The problem can be corrected by updating your system to the following package versions:

Ubuntu 22.10: curl 7.85.0-1ubuntu0.5 libcurl3-gnutls 7.85.0-1ubuntu0.5 libcurl3-nss 7.85.0-1ubuntu0.5 libcurl4 7.85.0-1ubuntu0.5

Ubuntu 22.04 LTS: curl 7.81.0-1ubuntu1.10 libcurl3-gnutls 7.81.0-1ubuntu1.10 libcurl3-nss 7.81.0-1ubuntu1.10 libcurl4 7.81.0-1ubuntu1.10

Ubuntu 20.04 LTS: curl 7.68.0-1ubuntu2.18 libcurl3-gnutls 7.68.0-1ubuntu2.18 libcurl3-nss 7.68.0-1ubuntu2.18 libcurl4 7.68.0-1ubuntu2.18

Ubuntu 18.04 LTS: curl 7.58.0-2ubuntu3.24 libcurl3-gnutls 7.58.0-2ubuntu3.24 libcurl3-nss 7.58.0-2ubuntu3.24 libcurl4 7.58.0-2ubuntu3.24

In general, a standard system update will make all the necessary changes.

References: https://ubuntu.com/security/notices/USN-5964-1 CVE-2023-27533, CVE-2023-27534, CVE-2023-27535, CVE-2023-27536, CVE-2023-27538

Package Information: https://launchpad.net/ubuntu/+source/curl/7.85.0-1ubuntu0.5 https://launchpad.net/ubuntu/+source/curl/7.81.0-1ubuntu1.10 https://launchpad.net/ubuntu/+source/curl/7.68.0-1ubuntu2.18 https://launchpad.net/ubuntu/+source/curl/7.58.0-2ubuntu3.24 . - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 202310-12

                                       https://security.gentoo.org/

Severity: High Title: curl: Multiple Vulnerabilities Date: October 11, 2023 Bugs: #887745, #894676, #902801, #906590, #910564, #914091, #915195 ID: 202310-12

Synopsis

Multiple vulnerabilities have been discovered in curl, the worst of which could result in arbitrary code execution.

Background

A command line tool and library for transferring data with URLs.

Affected packages

Package Vulnerable Unaffected

net-misc/curl < 8.3.0-r2 >= 8.3.0-r2

Description

Multiple vulnerabilities have been discovered in curl. Please review the CVE identifiers referenced below for details.

Impact

Please review the referenced CVE identifiers for details.

Note that the risk of remote code execution is limited to SOCKS usage.

Workaround

There is no known workaround at this time.

Resolution

All curl users should upgrade to the latest version:

# emerge --sync # emerge --ask --oneshot --verbose ">=net-misc/curl-8.3.0-r2"

References

[ 1 ] CVE-2022-43551 https://nvd.nist.gov/vuln/detail/CVE-2022-43551 [ 2 ] CVE-2022-43552 https://nvd.nist.gov/vuln/detail/CVE-2022-43552 [ 3 ] CVE-2023-23914 https://nvd.nist.gov/vuln/detail/CVE-2023-23914 [ 4 ] CVE-2023-23915 https://nvd.nist.gov/vuln/detail/CVE-2023-23915 [ 5 ] CVE-2023-23916 https://nvd.nist.gov/vuln/detail/CVE-2023-23916 [ 6 ] CVE-2023-27533 https://nvd.nist.gov/vuln/detail/CVE-2023-27533 [ 7 ] CVE-2023-27534 https://nvd.nist.gov/vuln/detail/CVE-2023-27534 [ 8 ] CVE-2023-27535 https://nvd.nist.gov/vuln/detail/CVE-2023-27535 [ 9 ] CVE-2023-27536 https://nvd.nist.gov/vuln/detail/CVE-2023-27536 [ 10 ] CVE-2023-27537 https://nvd.nist.gov/vuln/detail/CVE-2023-27537 [ 11 ] CVE-2023-27538 https://nvd.nist.gov/vuln/detail/CVE-2023-27538 [ 12 ] CVE-2023-28319 https://nvd.nist.gov/vuln/detail/CVE-2023-28319 [ 13 ] CVE-2023-28320 https://nvd.nist.gov/vuln/detail/CVE-2023-28320 [ 14 ] CVE-2023-28321 https://nvd.nist.gov/vuln/detail/CVE-2023-28321 [ 15 ] CVE-2023-28322 https://nvd.nist.gov/vuln/detail/CVE-2023-28322 [ 16 ] CVE-2023-32001 https://nvd.nist.gov/vuln/detail/CVE-2023-32001 [ 17 ] CVE-2023-38039 https://nvd.nist.gov/vuln/detail/CVE-2023-38039 [ 18 ] CVE-2023-38545 https://nvd.nist.gov/vuln/detail/CVE-2023-38545 [ 19 ] CVE-2023-38546 https://nvd.nist.gov/vuln/detail/CVE-2023-38546

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:

https://security.gentoo.org/glsa/202310-12

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.

License

Copyright 2023 Gentoo Foundation, Inc; referenced text belongs to its owner(s).

The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.

https://creativecommons.org/licenses/by-sa/2.5

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    "data": "An authentication bypass vulnerability exists in libcurl prior to v8.0.0 where it reuses a previously established SSH connection despite the fact that an SSH option was modified, which should have prevented reuse. libcurl maintains a pool of previously used connections to reuse them for subsequent transfers if the configurations match. However, two SSH settings were omitted from the configuration check, allowing them to match easily, potentially leading to the reuse of an inappropriate connection. Haxx of libcurl Products from other vendors have authentication vulnerabilities.Information may be obtained. Description\u003c!----\u003e This CVE is under investigation by Red Hat Product Security. ==========================================================================\nUbuntu Security Notice USN-5964-1\nMarch 20, 2023\n\ncurl vulnerabilities\n==========================================================================\n\nA security issue affects these releases of Ubuntu and its derivatives:\n\n- Ubuntu 22.10\n- Ubuntu 22.04 LTS\n- Ubuntu 20.04 LTS\n- Ubuntu 18.04 LTS\n\nSummary:\n\nSeveral security issues were fixed in curl. \n\nSoftware Description:\n- curl: HTTP, HTTPS, and FTP client and client libraries\n\nDetails:\n\nHarry Sintonen discovered that curl incorrectly handled certain TELNET\nconnection options. Due to lack of proper input scrubbing, curl could pass\non user name and telnet options to the server as provided, contrary to\nexpectations. (CVE-2023-27533)\n\nHarry Sintonen discovered that curl incorrectly handled special tilde\ncharacters when used with SFTP paths. A remote attacker could possibly use\nthis issue to circumvent filtering. (CVE-2023-27534)\n\nHarry Sintonen discovered that curl incorrectly reused certain FTP\nconnections. This could lead to the wrong credentials being reused,\ncontrary to expectations. (CVE-2023-27535)\n\nHarry Sintonen discovered that curl incorrectly reused connections when the\nGSS delegation option had been changed. This could lead to the option being\nreused, contrary to expectations. (CVE-2023-27536)\n\nHarry Sintonen discovered that curl incorrectly reused certain SSH\nconnections. This could lead to the wrong credentials being reused,\ncontrary to expectations. (CVE-2023-27538)\n\nUpdate instructions:\n\nThe problem can be corrected by updating your system to the following\npackage versions:\n\nUbuntu 22.10:\n   curl                            7.85.0-1ubuntu0.5\n   libcurl3-gnutls                 7.85.0-1ubuntu0.5\n   libcurl3-nss                    7.85.0-1ubuntu0.5\n   libcurl4                        7.85.0-1ubuntu0.5\n\nUbuntu 22.04 LTS:\n   curl                            7.81.0-1ubuntu1.10\n   libcurl3-gnutls                 7.81.0-1ubuntu1.10\n   libcurl3-nss                    7.81.0-1ubuntu1.10\n   libcurl4                        7.81.0-1ubuntu1.10\n\nUbuntu 20.04 LTS:\n   curl                            7.68.0-1ubuntu2.18\n   libcurl3-gnutls                 7.68.0-1ubuntu2.18\n   libcurl3-nss                    7.68.0-1ubuntu2.18\n   libcurl4                        7.68.0-1ubuntu2.18\n\nUbuntu 18.04 LTS:\n   curl                            7.58.0-2ubuntu3.24\n   libcurl3-gnutls                 7.58.0-2ubuntu3.24\n   libcurl3-nss                    7.58.0-2ubuntu3.24\n   libcurl4                        7.58.0-2ubuntu3.24\n\nIn general, a standard system update will make all the necessary changes. \n\nReferences:\n   https://ubuntu.com/security/notices/USN-5964-1\n   CVE-2023-27533, CVE-2023-27534, CVE-2023-27535, CVE-2023-27536,\n   CVE-2023-27538\n\nPackage Information:\n   https://launchpad.net/ubuntu/+source/curl/7.85.0-1ubuntu0.5\n   https://launchpad.net/ubuntu/+source/curl/7.81.0-1ubuntu1.10\n   https://launchpad.net/ubuntu/+source/curl/7.68.0-1ubuntu2.18\n   https://launchpad.net/ubuntu/+source/curl/7.58.0-2ubuntu3.24\n. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\nGentoo Linux Security Advisory                           GLSA 202310-12\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n                                           https://security.gentoo.org/\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n\n Severity: High\n    Title: curl: Multiple Vulnerabilities\n     Date: October 11, 2023\n     Bugs: #887745, #894676, #902801, #906590, #910564, #914091, #915195\n       ID: 202310-12\n\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n\nSynopsis\n========\n\nMultiple vulnerabilities have been discovered in curl, the worst of\nwhich could result in arbitrary code execution. \n\nBackground\n==========\n\nA command line tool and library for transferring data with URLs. \n\nAffected packages\n=================\n\nPackage        Vulnerable    Unaffected\n-------------  ------------  ------------\nnet-misc/curl  \u003c 8.3.0-r2    \u003e= 8.3.0-r2\n\nDescription\n===========\n\nMultiple vulnerabilities have been discovered in curl. Please review the\nCVE identifiers referenced below for details. \n\nImpact\n======\n\nPlease review the referenced CVE identifiers for details. \n\nNote that the risk of remote code execution is limited to SOCKS usage. \n\nWorkaround\n==========\n\nThere is no known workaround at this time. \n\nResolution\n==========\n\nAll curl users should upgrade to the latest version:\n\n  # emerge --sync\n  # emerge --ask --oneshot --verbose \"\u003e=net-misc/curl-8.3.0-r2\"\n\nReferences\n==========\n\n[ 1 ] CVE-2022-43551\n      https://nvd.nist.gov/vuln/detail/CVE-2022-43551\n[ 2 ] CVE-2022-43552\n      https://nvd.nist.gov/vuln/detail/CVE-2022-43552\n[ 3 ] CVE-2023-23914\n      https://nvd.nist.gov/vuln/detail/CVE-2023-23914\n[ 4 ] CVE-2023-23915\n      https://nvd.nist.gov/vuln/detail/CVE-2023-23915\n[ 5 ] CVE-2023-23916\n      https://nvd.nist.gov/vuln/detail/CVE-2023-23916\n[ 6 ] CVE-2023-27533\n      https://nvd.nist.gov/vuln/detail/CVE-2023-27533\n[ 7 ] CVE-2023-27534\n      https://nvd.nist.gov/vuln/detail/CVE-2023-27534\n[ 8 ] CVE-2023-27535\n      https://nvd.nist.gov/vuln/detail/CVE-2023-27535\n[ 9 ] CVE-2023-27536\n      https://nvd.nist.gov/vuln/detail/CVE-2023-27536\n[ 10 ] CVE-2023-27537\n      https://nvd.nist.gov/vuln/detail/CVE-2023-27537\n[ 11 ] CVE-2023-27538\n      https://nvd.nist.gov/vuln/detail/CVE-2023-27538\n[ 12 ] CVE-2023-28319\n      https://nvd.nist.gov/vuln/detail/CVE-2023-28319\n[ 13 ] CVE-2023-28320\n      https://nvd.nist.gov/vuln/detail/CVE-2023-28320\n[ 14 ] CVE-2023-28321\n      https://nvd.nist.gov/vuln/detail/CVE-2023-28321\n[ 15 ] CVE-2023-28322\n      https://nvd.nist.gov/vuln/detail/CVE-2023-28322\n[ 16 ] CVE-2023-32001\n      https://nvd.nist.gov/vuln/detail/CVE-2023-32001\n[ 17 ] CVE-2023-38039\n      https://nvd.nist.gov/vuln/detail/CVE-2023-38039\n[ 18 ] CVE-2023-38545\n      https://nvd.nist.gov/vuln/detail/CVE-2023-38545\n[ 19 ] CVE-2023-38546\n      https://nvd.nist.gov/vuln/detail/CVE-2023-38546\n\nAvailability\n============\n\nThis GLSA and any updates to it are available for viewing at\nthe Gentoo Security Website:\n\n https://security.gentoo.org/glsa/202310-12\n\nConcerns?\n=========\n\nSecurity is a primary focus of Gentoo Linux and ensuring the\nconfidentiality and security of our users\u0027 machines is of utmost\nimportance to us. Any security concerns should be addressed to\nsecurity@gentoo.org or alternatively, you may file a bug at\nhttps://bugs.gentoo.org. \n\nLicense\n=======\n\nCopyright 2023 Gentoo Foundation, Inc; referenced text\nbelongs to its owner(s). \n\nThe contents of this document are licensed under the\nCreative Commons - Attribution / Share Alike license. \n\nhttps://creativecommons.org/licenses/by-sa/2.5\n",
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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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