rhsa-2023_7207
Vulnerability from csaf_redhat
Published
2023-11-14 17:00
Modified
2024-11-23 01:01
Summary
Red Hat Security Advisory: c-ares security update
Notes
Topic
An update for c-ares 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 c-ares C library defines asynchronous DNS (Domain Name System) requests and provides name resolving API.
Security Fix(es):
* c-ares: Heap buffer over read in ares_parse_soa_reply (CVE-2020-22217)
* c-ares: Buffer Underwrite in ares_inet_net_pton() (CVE-2023-31130)
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.
{ "document": { "aggregate_severity": { "namespace": "https://access.redhat.com/security/updates/classification/", "text": "Moderate" }, "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "summary", "text": "An update for c-ares is now available for Red Hat Enterprise Linux 8.\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.", "title": "Topic" }, { "category": "general", "text": "The c-ares C library defines asynchronous DNS (Domain Name System) requests and provides name resolving API.\n\nSecurity Fix(es):\n\n* c-ares: Heap buffer over read in ares_parse_soa_reply (CVE-2020-22217)\n\n* c-ares: Buffer Underwrite in ares_inet_net_pton() (CVE-2023-31130)\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-2023:7207", "url": "https://access.redhat.com/errata/RHSA-2023:7207" }, { "category": "external", "summary": "https://access.redhat.com/security/updates/classification/#moderate", "url": "https://access.redhat.com/security/updates/classification/#moderate" }, { "category": "external", "summary": "2209497", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2209497" }, { "category": "external", "summary": "2235527", 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"c-ares-devel-0:1.13.0-9.el8_9.1.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)", "product_id": "BaseOS-8.9.0.Z.MAIN:c-ares-devel-0:1.13.0-9.el8_9.1.x86_64" }, "product_reference": "c-ares-devel-0:1.13.0-9.el8_9.1.x86_64", "relates_to_product_reference": "BaseOS-8.9.0.Z.MAIN" } ] }, "vulnerabilities": [ { "cve": "CVE-2020-22217", "cwe": { "id": "CWE-126", "name": "Buffer Over-read" }, "discovery_date": "2023-08-28T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2235527" } ], "notes": [ { "category": "description", "text": "A heap buffer over-read flaw was found in c-ares via the ares_parse_soa_reply function in ares_parse_soa_reply.c.", "title": "Vulnerability description" }, { "category": "summary", "text": "c-ares: Heap buffer over read in ares_parse_soa_reply", "title": "Vulnerability summary" }, { "category": "other", "text": "The attack vector for this flaw initiates from a malicious server (a SOA reply to a client query) which requires a attacker set up a server a make it to be queried by a victim through cache poisoning or MITM, raising the Attack Complexity to High. \n\nThis being a out of bounds reads does not bring a risk of memory corruption, which makes it of none impact to Integrity. Also the read limitis 2 bytes (16bit, unsigned short int) from the DNS_QUERY_TYPE MACRO[1] return and the read value would be ignored and not propagated anywhere since the subsequent check would also fail making the confidentiality impact as none.\n\n[1] https://github.com/c-ares/c-ares/blob/4d4fb34075c90d8f2f9ff81890152ab60f65e48e/include/ares_dns.h#L95\n[2] https://github.com/c-ares/c-ares/issues/333", "title": "Statement" }, { "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-8.9.0.Z.MAIN:c-ares-0:1.13.0-9.el8_9.1.aarch64", "BaseOS-8.9.0.Z.MAIN:c-ares-0:1.13.0-9.el8_9.1.i686", "BaseOS-8.9.0.Z.MAIN:c-ares-0:1.13.0-9.el8_9.1.ppc64le", "BaseOS-8.9.0.Z.MAIN:c-ares-0:1.13.0-9.el8_9.1.s390x", 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This issue occurs in the ares_inet_net_pton() function, which is vulnerable to a buffer underflow for certain ipv6 addresses. \"0::00:00:00/2\" in particular was found to cause an issue. C-ares only uses this function internally for configuration purposes, which would require an administrator to configure such an address via ares_set_sortlist().", "title": "Vulnerability description" }, { "category": "summary", "text": "c-ares: Buffer Underwrite in ares_inet_net_pton()", "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-8.9.0.Z.MAIN:c-ares-0:1.13.0-9.el8_9.1.aarch64", "BaseOS-8.9.0.Z.MAIN:c-ares-0:1.13.0-9.el8_9.1.i686", "BaseOS-8.9.0.Z.MAIN:c-ares-0:1.13.0-9.el8_9.1.ppc64le", "BaseOS-8.9.0.Z.MAIN:c-ares-0:1.13.0-9.el8_9.1.s390x", "BaseOS-8.9.0.Z.MAIN:c-ares-0:1.13.0-9.el8_9.1.src", "BaseOS-8.9.0.Z.MAIN:c-ares-0:1.13.0-9.el8_9.1.x86_64", 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"category": "self", "summary": "Canonical URL", "url": "https://access.redhat.com/security/cve/CVE-2023-31130" }, { "category": "external", "summary": "RHBZ#2209497", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2209497" }, { "category": "external", "summary": "https://www.cve.org/CVERecord?id=CVE-2023-31130", "url": "https://www.cve.org/CVERecord?id=CVE-2023-31130" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-31130", "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-31130" }, { "category": "external", "summary": "https://github.com/c-ares/c-ares/security/advisories/GHSA-x6mf-cxr9-8q6v", "url": "https://github.com/c-ares/c-ares/security/advisories/GHSA-x6mf-cxr9-8q6v" } ], "release_date": "2023-05-22T00:00:00+00:00", "remediations": [ { "category": "vendor_fix", "date": "2023-11-14T17:00:58+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer 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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.