rhsa-2022_0635
Vulnerability from csaf_redhat
Published
2022-02-22 15:58
Modified
2024-11-06 00:30
Summary
Red Hat Security Advisory: curl security update
Notes
Topic
An update for curl is now available for Red Hat Enterprise Linux 8.2 Extended Update Support.
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
The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including HTTP, FTP, and LDAP.
Security Fix(es):
* 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.
Terms of Use
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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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.", "title": "Topic" }, { "category": "general", "text": "The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including HTTP, FTP, and LDAP.\n\nSecurity Fix(es):\n\n* curl: Requirement to use TLS not properly enforced for IMAP, POP3, and FTP protocols (CVE-2021-22946)\n\n* curl: Server responses received before STARTTLS processed after TLS handshake (CVE-2021-22947)\n\nFor 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.", "title": "Details" }, { "category": "legal_disclaimer", "text": "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.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "https://access.redhat.com/security/team/contact/", "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.", "name": "Red Hat Product Security", "namespace": "https://www.redhat.com" }, "references": [ { "category": "self", "summary": "https://access.redhat.com/errata/RHSA-2022:0635", "url": "https://access.redhat.com/errata/RHSA-2022:0635" }, { "category": "external", "summary": "https://access.redhat.com/security/updates/classification/#moderate", "url": "https://access.redhat.com/security/updates/classification/#moderate" }, { "category": "external", "summary": "2003175", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2003175" }, { "category": "external", "summary": "2003191", 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Information" }, "discovery_date": "2021-09-10T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2003175" } ], "notes": [ { "category": "description", "text": "A flaw was found in curl. This flaw lies in the --ssl-reqd option or related settings in libcurl. Users specify this flag to upgrade to TLS when communicating with either IMAP, POP3 or a FTP server. An attacker controlling such servers could return a crafted response which could lead to curl client continue its operation without TLS encryption leading to data being transmitted in clear text over the network. The highest threat from this vulnerability is to data confidentiality.", "title": "Vulnerability description" }, { "category": "summary", "text": "curl: Requirement to use TLS not properly enforced for IMAP, POP3, and FTP protocols", "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": { "fixed": [ "BaseOS-8.2.0.Z.EUS:curl-0:7.61.1-12.el8_2.4.aarch64", "BaseOS-8.2.0.Z.EUS:curl-0:7.61.1-12.el8_2.4.ppc64le", "BaseOS-8.2.0.Z.EUS:curl-0:7.61.1-12.el8_2.4.s390x", "BaseOS-8.2.0.Z.EUS:curl-0:7.61.1-12.el8_2.4.src", "BaseOS-8.2.0.Z.EUS:curl-0:7.61.1-12.el8_2.4.x86_64", "BaseOS-8.2.0.Z.EUS:curl-debuginfo-0:7.61.1-12.el8_2.4.aarch64", "BaseOS-8.2.0.Z.EUS:curl-debuginfo-0:7.61.1-12.el8_2.4.i686", 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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": { "fixed": [ "BaseOS-8.2.0.Z.EUS:curl-0:7.61.1-12.el8_2.4.aarch64", "BaseOS-8.2.0.Z.EUS:curl-0:7.61.1-12.el8_2.4.ppc64le", "BaseOS-8.2.0.Z.EUS:curl-0:7.61.1-12.el8_2.4.s390x", "BaseOS-8.2.0.Z.EUS:curl-0:7.61.1-12.el8_2.4.src", "BaseOS-8.2.0.Z.EUS:curl-0:7.61.1-12.el8_2.4.x86_64", "BaseOS-8.2.0.Z.EUS:curl-debuginfo-0:7.61.1-12.el8_2.4.aarch64", "BaseOS-8.2.0.Z.EUS:curl-debuginfo-0:7.61.1-12.el8_2.4.i686", 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- 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.