rhsa-2021_3946
Vulnerability from csaf_redhat
Published
2021-10-20 14:00
Modified
2024-09-13 20:31
Summary
Red Hat Security Advisory: redis:5 security update
Notes
Topic
An update for the redis:5 module is now available for Red Hat Enterprise Linux 8.1 Extended Update Support.
Red Hat Product Security has rated this update as having a security impact of Important. 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
Redis is an advanced key-value store. It is often referred to as a data-structure server since keys can contain strings, hashes, lists, sets, and sorted sets. For performance, Redis works with an in-memory data set. You can persist it either by dumping the data set to disk every once in a while, or by appending each command to a log.
Security Fix(es):
* redis: Lua scripts can overflow the heap-based Lua stack (CVE-2021-32626)
* redis: Integer overflow issue with Streams (CVE-2021-32627)
* redis: Integer overflow bug in the ziplist data structure (CVE-2021-32628)
* redis: Denial of service via Redis Standard Protocol (RESP) request (CVE-2021-32675)
* redis: Integer overflow issue with intsets (CVE-2021-32687)
* redis: Integer overflow issue with strings (CVE-2021-41099)
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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"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "redis: Lua scripts can overflow the heap-based Lua stack"
},
{
"acknowledgments": [
{
"names": [
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],
"summary": "Acknowledged by upstream."
}
],
"cve": "CVE-2021-32627",
"cwe": {
"id": "CWE-787",
"name": "Out-of-bounds Write"
},
"discovery_date": "2021-10-04T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2011010"
}
],
"notes": [
{
"category": "description",
"text": "An integer overflow issue was found in redis. The vulnerability involves changing the default \"proto-max-bulk-len\" and \"client-query-buffer-limit\" configuration parameters to very large values and constructing specially crafted large stream elements. This flaw allows a remote attacker to corrupt the heap and potentially trigger remote code execution. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "redis: Integer overflow issue with Streams",
"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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},
{
"category": "external",
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{
"category": "external",
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"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-32627"
},
{
"category": "external",
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},
{
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}
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"title": "redis: Integer overflow issue with Streams"
},
{
"acknowledgments": [
{
"names": [
"sundb"
],
"summary": "Acknowledged by upstream."
}
],
"cve": "CVE-2021-32628",
"cwe": {
"id": "CWE-787",
"name": "Out-of-bounds Write"
},
"discovery_date": "2021-10-04T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2011004"
}
],
"notes": [
{
"category": "description",
"text": "An integer overflow issue was found in the redis ziplist data structure. The vulnerability involves modifying the default ziplist configuration parameters (hash-max-ziplist-entries, hash-max-ziplist-value, zset-max-ziplist-entries or zset-max-ziplist-value) to a very large value, and then constructing specially crafted commands to create very large ziplists. This flaw allows a remote attacker to corrupt the heap and potentially trigger remote code execution. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "redis: Integer overflow bug in the ziplist data structure",
"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-2021-32628"
},
{
"category": "external",
"summary": "RHBZ#2011004",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2011004"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2021-32628",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-32628"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-32628",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-32628"
},
{
"category": "external",
"summary": "https://github.com/redis/redis/security/advisories/GHSA-vw22-qm3h-49pr",
"url": "https://github.com/redis/redis/security/advisories/GHSA-vw22-qm3h-49pr"
}
],
"release_date": "2021-10-04T00:00:00+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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{
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{
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"attackVector": "NETWORK",
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"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
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"title": "redis: Integer overflow bug in the ziplist data structure"
},
{
"cve": "CVE-2021-32675",
"cwe": {
"id": "CWE-770",
"name": "Allocation of Resources Without Limits or Throttling"
},
"discovery_date": "2021-10-04T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2011000"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in redis. When parsing an incoming Redis Standard Protocol (RESP) request, redis allocates memory according to user-specified values, which determine the number of elements (in the multi-bulk header) and size of each element (in the bulk header). This flaw allows an unauthenticated, remote user delivering specially crafted requests over multiple connections to cause the server to allocate a significant amount of memory, resulting in a denial of service. The highest threat from this vulnerability is to system availability.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "redis: Denial of service via Redis Standard Protocol (RESP) request",
"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-2021-32675"
},
{
"category": "external",
"summary": "RHBZ#2011000",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2011000"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2021-32675",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-32675"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-32675",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-32675"
},
{
"category": "external",
"summary": "https://github.com/redis/redis/security/advisories/GHSA-f6pw-v9gw-v64p",
"url": "https://github.com/redis/redis/security/advisories/GHSA-f6pw-v9gw-v64p"
}
],
"release_date": "2021-10-04T00:00:00+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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{
"category": "workaround",
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{
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"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
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"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "redis: Denial of service via Redis Standard Protocol (RESP) request"
},
{
"acknowledgments": [
{
"names": [
"Pawel Wieczorkiewicz"
],
"organization": "Amazon Web Services",
"summary": "Acknowledged by upstream."
}
],
"cve": "CVE-2021-32687",
"cwe": {
"id": "CWE-787",
"name": "Out-of-bounds Write"
},
"discovery_date": "2021-10-04T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2010991"
}
],
"notes": [
{
"category": "description",
"text": "An integer overflow issue was found in redis. The vulnerability involves changing the default \"set-max-intset-entries\" configuration parameter to a very large value and constructing specially crafted commands to manipulate sets. This flaw allows a remote attacker to leak arbitrary contents of the heap or potentially trigger remote code execution. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "redis: Integer overflow issue with intsets",
"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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},
{
"category": "external",
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},
{
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},
{
"category": "external",
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},
{
"category": "external",
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"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
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"version": "3.1"
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"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "redis: Integer overflow issue with intsets"
},
{
"acknowledgments": [
{
"names": [
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],
"summary": "Acknowledged by upstream."
}
],
"cve": "CVE-2021-41099",
"cwe": {
"id": "CWE-787",
"name": "Out-of-bounds Write"
},
"discovery_date": "2021-10-04T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2011020"
}
],
"notes": [
{
"category": "description",
"text": "An integer overflow issue was found in redis in the underlying string library. The vulnerability involves changing the default \"proto-max-bulk-len\" configuration parameter to a very large value and constructing specially crafted network payloads or commands. This flaw allows a remote attacker to corrupt the heap and potentially trigger remote code execution. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "redis: Integer overflow issue with strings",
"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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{
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{
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],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2021:3946"
},
{
"category": "workaround",
"details": "The flaw can be mitigated by disallowing usage of the CONFIG SET command via ACL configuration. This will prevent clients from setting the `proto-max-bulk-len` configuration parameter. Please see https://redis.io/topics/acl for more information on how to do this.",
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],
"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
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],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "redis: Integer overflow issue with strings"
}
]
}
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