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alsa-2024:1789
Vulnerability from osv_almalinux
Published
2024-04-11 00:00
Modified
2024-04-12 12:58
Summary
Important: bind security update
Details
The Berkeley Internet Name Domain (BIND) is an implementation of the Domain Name System (DNS) protocols. BIND includes a DNS server (named); a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating correctly.
Security Fix(es):
- bind: Preparing an NSEC3 closest encloser proof can exhaust CPU resources (CVE-2023-50868)
- bind: KeyTrap - Extreme CPU consumption in DNSSEC validator (CVE-2023-50387)
- bind: Specific recursive query patterns may lead to an out-of-memory condition (CVE-2023-6516)
- bind: Enabling both DNS64 and serve-stale may cause an assertion failure during recursive resolution (CVE-2023-5679)
- bind: Querying RFC 1918 reverse zones may cause an assertion failure when “nxdomain-redirect” is enabled (CVE-2023-5517)
- bind: Parsing large DNS messages may cause excessive CPU load (CVE-2023-4408)
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.
References
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"details": "The Berkeley Internet Name Domain (BIND) is an implementation of the Domain Name System (DNS) protocols. BIND includes a DNS server (named); a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating correctly.\n\nSecurity Fix(es):\n\n* bind: Preparing an NSEC3 closest encloser proof can exhaust CPU resources (CVE-2023-50868)\n* bind: KeyTrap - Extreme CPU consumption in DNSSEC validator (CVE-2023-50387)\n* bind: Specific recursive query patterns may lead to an out-of-memory condition (CVE-2023-6516)\n* bind: Enabling both DNS64 and serve-stale may cause an assertion failure during recursive resolution (CVE-2023-5679)\n* bind: Querying RFC 1918 reverse zones may cause an assertion failure when \u201cnxdomain-redirect\u201d is enabled (CVE-2023-5517)\n* bind: Parsing large DNS messages may cause excessive CPU load (CVE-2023-4408)\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.",
"id": "ALSA-2024:1789",
"modified": "2024-04-12T12:58:56Z",
"published": "2024-04-11T00:00:00Z",
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"type": "ADVISORY",
"url": "https://access.redhat.com/errata/RHSA-2024:1789"
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"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2023-4408"
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"url": "https://bugzilla.redhat.com/2263914"
},
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},
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"url": "https://errata.almalinux.org/9/ALSA-2024-1789.html"
}
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"CVE-2023-50387",
"CVE-2023-6516",
"CVE-2023-5679",
"CVE-2023-5517",
"CVE-2023-4408"
],
"summary": "Important: bind security update"
}
CVE-2023-5679 (GCVE-0-2023-5679)
Vulnerability from cvelistv5 – Published: 2024-02-13 14:05 – Updated: 2025-03-28 23:51
VLAI?
EPSS
Title
Enabling both DNS64 and serve-stale may cause an assertion failure during recursive resolution
Summary
A bad interaction between DNS64 and serve-stale may cause `named` to crash with an assertion failure during recursive resolution, when both of these features are enabled.
This issue affects BIND 9 versions 9.16.12 through 9.16.45, 9.18.0 through 9.18.21, 9.19.0 through 9.19.19, 9.16.12-S1 through 9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1.
Severity ?
7.5 (High)
CWE
- CWE-617 - Reachable Assertion
Assigner
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
Date Public ?
2024-02-13 00:00
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CVE-2023-6516 (GCVE-0-2023-6516)
Vulnerability from cvelistv5 – Published: 2024-02-13 14:05 – Updated: 2025-02-13 17:26
VLAI?
EPSS
Title
Specific recursive query patterns may lead to an out-of-memory condition
Summary
To keep its cache database efficient, `named` running as a recursive resolver occasionally attempts to clean up the database. It uses several methods, including some that are asynchronous: a small chunk of memory pointing to the cache element that can be cleaned up is first allocated and then queued for later processing. It was discovered that if the resolver is continuously processing query patterns triggering this type of cache-database maintenance, `named` may not be able to handle the cleanup events in a timely manner. This in turn enables the list of queued cleanup events to grow infinitely large over time, allowing the configured `max-cache-size` limit to be significantly exceeded.
This issue affects BIND 9 versions 9.16.0 through 9.16.45 and 9.16.8-S1 through 9.16.45-S1.
Severity ?
7.5 (High)
CWE
- CWE-789 - Memory Allocation with Excessive Size Value
Assigner
References
Impacted products
Date Public ?
2024-02-13 00:00
Credits
ISC would like to thank Infoblox for bringing this vulnerability to our attention.
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CVE-2023-50387 (GCVE-0-2023-50387)
Vulnerability from cvelistv5 – Published: 2024-02-14 00:00 – Updated: 2025-11-04 18:20
VLAI?
EPSS
Summary
Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the "KeyTrap" issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG records.
Severity ?
7.5 (High)
CWE
- n/a
Assigner
References
| URL | Tags | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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CVE-2023-5517 (GCVE-0-2023-5517)
Vulnerability from cvelistv5 – Published: 2024-02-13 14:04 – Updated: 2025-02-13 17:25
VLAI?
EPSS
Title
Querying RFC 1918 reverse zones may cause an assertion failure when "nxdomain-redirect" is enabled
Summary
A flaw in query-handling code can cause `named` to exit prematurely with an assertion failure when:
- `nxdomain-redirect <domain>;` is configured, and
- the resolver receives a PTR query for an RFC 1918 address that would normally result in an authoritative NXDOMAIN response.
This issue affects BIND 9 versions 9.12.0 through 9.16.45, 9.18.0 through 9.18.21, 9.19.0 through 9.19.19, 9.16.8-S1 through 9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1.
Severity ?
7.5 (High)
CWE
- CWE-617 - Reachable Assertion
Assigner
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
Date Public ?
2024-02-13 00:00
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CVE-2023-50868 (GCVE-0-2023-50868)
Vulnerability from cvelistv5 – Published: 2024-02-14 00:00 – Updated: 2025-11-04 18:20
VLAI?
EPSS
Summary
The Closest Encloser Proof aspect of the DNS protocol (in RFC 5155 when RFC 9276 guidance is skipped) allows remote attackers to cause a denial of service (CPU consumption for SHA-1 computations) via DNSSEC responses in a random subdomain attack, aka the "NSEC3" issue. The RFC 5155 specification implies that an algorithm must perform thousands of iterations of a hash function in certain situations.
Severity ?
7.5 (High)
CWE
- n/a
Assigner
References
| URL | Tags | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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CVE-2023-4408 (GCVE-0-2023-4408)
Vulnerability from cvelistv5 – Published: 2024-02-13 14:04 – Updated: 2025-03-14 16:16
VLAI?
EPSS
Title
Parsing large DNS messages may cause excessive CPU load
Summary
The DNS message parsing code in `named` includes a section whose computational complexity is overly high. It does not cause problems for typical DNS traffic, but crafted queries and responses may cause excessive CPU load on the affected `named` instance by exploiting this flaw. This issue affects both authoritative servers and recursive resolvers.
This issue affects BIND 9 versions 9.0.0 through 9.16.45, 9.18.0 through 9.18.21, 9.19.0 through 9.19.19, 9.9.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1.
Severity ?
7.5 (High)
CWE
- CWE-407 - Inefficient Algorithmic Complexity
Assigner
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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Impacted products
Date Public ?
2024-02-13 00:00
Credits
ISC would like to thank Shoham Danino from Reichman University, Anat Bremler-Barr from Tel-Aviv University, Yehuda Afek from Tel-Aviv University, and Yuval Shavitt from Tel-Aviv University for bringing this vulnerability to our attention.
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"id": "CVE-2023-4408",
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"datePublished": "2024-02-13T14:04:17.519Z",
"dateReserved": "2023-08-18T07:59:28.420Z",
"dateUpdated": "2025-03-14T16:16:25.564Z",
"state": "PUBLISHED"
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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