rhsa-2021_4511
Vulnerability from csaf_redhat
Published
2021-11-09 18:26
Modified
2024-11-06 00:07
Summary
Red Hat Security Advisory: curl security and bug fix update
Notes
Topic
An update for curl is now available for Red Hat Enterprise Linux 8.
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: Leak of authentication credentials in URL via automatic Referer (CVE-2021-22876)
* curl: TELNET stack contents disclosure (CVE-2021-22898)
* curl: Incorrect fix for CVE-2021-22898 TELNET stack contents disclosure (CVE-2021-22925)
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.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.5 Release Notes linked from 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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"category": "general",
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{
"category": "impact",
"details": "Moderate"
}
],
"title": "curl: Leak of authentication credentials in URL via automatic Referer"
},
{
"acknowledgments": [
{
"names": [
"the Curl Project"
]
},
{
"names": [
"Harry Sintonen"
],
"summary": "Acknowledged by upstream."
}
],
"cve": "CVE-2021-22898",
"cwe": {
"id": "CWE-908",
"name": "Use of Uninitialized Resource"
},
"discovery_date": "2021-05-17T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1964887"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the way curl handled telnet protocol option for sending environment variables, which could lead to sending of uninitialized data from a stack-based buffer to the server. This issue leads to potentially revealing sensitive internal information to the server using a clear-text network protocol.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "curl: TELNET stack contents disclosure",
"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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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2021-22898"
},
{
"category": "external",
"summary": "RHBZ#1964887",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1964887"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2021-22898",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-22898"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-22898",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-22898"
},
{
"category": "external",
"summary": "https://curl.se/docs/CVE-2021-22898.html",
"url": "https://curl.se/docs/CVE-2021-22898.html"
}
],
"release_date": "2021-05-26T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2021-11-09T18:26:01+00:00",
"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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},
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{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 3.1,
"baseSeverity": "LOW",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"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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{
"category": "impact",
"details": "Low"
}
],
"title": "curl: TELNET stack contents disclosure"
},
{
"acknowledgments": [
{
"summary": "This issue was discovered by Red Hat."
}
],
"cve": "CVE-2021-22925",
"cwe": {
"id": "CWE-908",
"name": "Use of Uninitialized Resource"
},
"discovery_date": "2021-06-10T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1970902"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the way curl handled telnet protocol option for sending environment variables, which could lead to sending of uninitialized data from a stack-based buffer to the server. This issue leads to potentially revealing sensitive internal information to the server using a clear-text network protocol.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "curl: Incorrect fix for CVE-2021-22898 TELNET stack contents disclosure",
"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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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2021-22925"
},
{
"category": "external",
"summary": "RHBZ#1970902",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1970902"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2021-22925",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-22925"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-22925",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-22925"
}
],
"release_date": "2021-07-21T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2021-11-09T18:26:01+00:00",
"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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},
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{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 3.1,
"baseSeverity": "LOW",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"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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"BaseOS-8.5.0.GA:libcurl-minimal-debuginfo-0:7.61.1-22.el8.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Low"
}
],
"title": "curl: Incorrect fix for CVE-2021-22898 TELNET stack contents disclosure"
}
]
}
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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.