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OPENSUSE-SU-2026:21015-1

Vulnerability from csaf_opensuse - Published: 2026-06-22 14:30 - Updated: 2026-09-16 21:40
Summary
Security update for dnsdist
Severity
Moderate
Notes
Title of the patch: Security update for dnsdist
Description of the patch: This update for dnsdist fixes the following issues - CVE-2026-0396: crafted DNS queries can allow to inject HTML content (bsc#1261236). - CVE-2026-0397: CORS misconfiguration can lead to information disclosure (bsc#1261237). - CVE-2026-24028: crafted DNS response packet can lead to an out-of-bounds read (bsc#1261238). - CVE-2026-24029: HTTPS ACL bypass can allow clients to send DoH queries (bsc#1261239). - CVE-2026-24030: allocating too much memory while processing DNS can result in a denial of service (bsc#1261240). - CVE-2026-27853: crafted DNS responses can lead to an out-of-bounds write (bsc#1261241). - CVE-2026-27854: crafted DNS queries can be used to trigger a use-after-free (bsc#1261243). - CVE-2026-33254: Resource exhaustion via DoQ/DoH3 connections (bsc#1262538). - CVE-2026-33257: Insufficient input validation of internal webserver (bsc#1262536). - CVE-2026-33260: Insufficient input validation of internal webserver (bsc#1262537). - CVE-2026-33593: Denial of service via crafted DNSCrypt query (bsc#1262546). - CVE-2026-33594: Outgoing DoH excessive memory allocation (bsc#1262545). - CVE-2026-33595: DoQ/DoH3 excessive memory allocation (bsc#1262544). - CVE-2026-33596: TCP backend stream ID overflow (bsc#1262543). - CVE-2026-33597: PRSD detection denial of service (bsc#1262542). - CVE-2026-33598: Out-of-bounds read in cache inspection via Lua (bsc#1262541). - CVE-2026-33599: Out-of-bounds read in service discovery (bsc#1262540). - CVE-2026-33602: Off-by-one access when processing crafted UDP responses (bsc#1262539). Changes for dnsdist: - Updated to 1.9.13
Patchnames: openSUSE-Leap-16.0-1027
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
Affected products
Product Identifier Version Remediation
Unresolved product id: openSUSE Leap 16.0:dnsdist-1.9.13-160000.1.1.aarch64
Vendor Fix
Unresolved product id: openSUSE Leap 16.0:dnsdist-1.9.13-160000.1.1.ppc64le
Vendor Fix
Unresolved product id: openSUSE Leap 16.0:dnsdist-1.9.13-160000.1.1.s390x
Vendor Fix
Unresolved product id: openSUSE Leap 16.0:dnsdist-1.9.13-160000.1.1.x86_64
Vendor Fix
Threats
Impact low
Affected products
Recommended 4 products, the same list as for CVE-2026-0396
Threats
Impact low
Affected products
Recommended 4 products, the same list as for CVE-2026-0396
Threats
Impact moderate
Affected products
Recommended 4 products, the same list as for CVE-2026-0396
Threats
Impact moderate
Affected products
Recommended 4 products, the same list as for CVE-2026-0396
Threats
Impact moderate
Affected products
Recommended 4 products, the same list as for CVE-2026-0396
Threats
Impact moderate
Affected products
Recommended 4 products, the same list as for CVE-2026-0396
Threats
Impact moderate
Affected products
Recommended 4 products, the same list as for CVE-2026-0396
Threats
Impact important
Affected products
Recommended 4 products, the same list as for CVE-2026-0396
Threats
Impact moderate
Affected products
Recommended 4 products, the same list as for CVE-2026-0396
Threats
Impact moderate
Affected products
Recommended 4 products, the same list as for CVE-2026-0396
Threats
Impact important
Affected products
Recommended 4 products, the same list as for CVE-2026-0396
Threats
Impact important
Affected products
Recommended 4 products, the same list as for CVE-2026-0396
Threats
Impact important
Affected products
Recommended 4 products, the same list as for CVE-2026-0396
Threats
Impact moderate
Affected products
Recommended 4 products, the same list as for CVE-2026-0396
Threats
Impact important
Affected products
Recommended 4 products, the same list as for CVE-2026-0396
Threats
Impact critical
Affected products
Recommended 4 products, the same list as for CVE-2026-0396
Threats
Impact important
Affected products
Recommended 4 products, the same list as for CVE-2026-0396
Threats
Impact important
References
URL Category
https://www.suse.com/support/security/rating/ external
https://ftp.suse.com/pub/projects/security/csaf/o… self
https://bugzilla.suse.com/1261236 self
https://bugzilla.suse.com/1261237 self
https://bugzilla.suse.com/1261238 self
https://bugzilla.suse.com/1261239 self
https://bugzilla.suse.com/1261240 self
https://bugzilla.suse.com/1261241 self
https://bugzilla.suse.com/1261243 self
https://bugzilla.suse.com/1262536 self
https://bugzilla.suse.com/1262537 self
https://bugzilla.suse.com/1262538 self
https://bugzilla.suse.com/1262539 self
https://bugzilla.suse.com/1262540 self
https://bugzilla.suse.com/1262541 self
https://bugzilla.suse.com/1262542 self
https://bugzilla.suse.com/1262543 self
https://bugzilla.suse.com/1262544 self
https://bugzilla.suse.com/1262545 self
https://bugzilla.suse.com/1262546 self
https://www.suse.com/security/cve/CVE-2026-0396/ self
https://www.suse.com/security/cve/CVE-2026-0397/ self
https://www.suse.com/security/cve/CVE-2026-24028/ self
https://www.suse.com/security/cve/CVE-2026-24029/ self
https://www.suse.com/security/cve/CVE-2026-24030/ self
https://www.suse.com/security/cve/CVE-2026-27853/ self
https://www.suse.com/security/cve/CVE-2026-27854/ self
https://www.suse.com/security/cve/CVE-2026-33254/ self
https://www.suse.com/security/cve/CVE-2026-33257/ self
https://www.suse.com/security/cve/CVE-2026-33260/ self
https://www.suse.com/security/cve/CVE-2026-33593/ self
https://www.suse.com/security/cve/CVE-2026-33594/ self
https://www.suse.com/security/cve/CVE-2026-33595/ self
https://www.suse.com/security/cve/CVE-2026-33596/ self
https://www.suse.com/security/cve/CVE-2026-33597/ self
https://www.suse.com/security/cve/CVE-2026-33598/ self
https://www.suse.com/security/cve/CVE-2026-33599/ self
https://www.suse.com/security/cve/CVE-2026-33602/ self
https://www.suse.com/security/cve/CVE-2026-0396 external
https://bugzilla.suse.com/1261236 external
https://www.suse.com/security/cve/CVE-2026-0397 external
https://bugzilla.suse.com/1261237 external
https://www.suse.com/security/cve/CVE-2026-24028 external
https://bugzilla.suse.com/1261238 external
https://www.suse.com/security/cve/CVE-2026-24029 external
https://bugzilla.suse.com/1261239 external
https://www.suse.com/security/cve/CVE-2026-24030 external
https://bugzilla.suse.com/1261240 external
https://www.suse.com/security/cve/CVE-2026-27853 external
https://bugzilla.suse.com/1261241 external
https://www.suse.com/security/cve/CVE-2026-27854 external
https://bugzilla.suse.com/1261243 external
https://www.suse.com/security/cve/CVE-2026-33254 external
https://bugzilla.suse.com/1262538 external
https://www.suse.com/security/cve/CVE-2026-33257 external
https://bugzilla.suse.com/1262536 external
https://www.suse.com/security/cve/CVE-2026-33260 external
https://bugzilla.suse.com/1262537 external
https://www.suse.com/security/cve/CVE-2026-33593 external
https://bugzilla.suse.com/1262546 external
https://www.suse.com/security/cve/CVE-2026-33594 external
https://bugzilla.suse.com/1262545 external
https://www.suse.com/security/cve/CVE-2026-33595 external
https://bugzilla.suse.com/1262544 external
https://www.suse.com/security/cve/CVE-2026-33596 external
https://bugzilla.suse.com/1262543 external
https://www.suse.com/security/cve/CVE-2026-33597 external
https://bugzilla.suse.com/1262542 external
https://www.suse.com/security/cve/CVE-2026-33598 external
https://bugzilla.suse.com/1262541 external
https://www.suse.com/security/cve/CVE-2026-33599 external
https://bugzilla.suse.com/1262540 external
https://www.suse.com/security/cve/CVE-2026-33602 external
https://bugzilla.suse.com/1262539 external

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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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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Detection rules are retrieved from Rulezet.

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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


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