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CVE-2024-12705

Medium priority

Some fixes available 5 of 14

Clients using DNS-over-HTTPS (DoH) can exhaust a DNS resolver's CPU and/or memory by flooding it with crafted valid or invalid HTTP/2 traffic. This issue affects BIND 9 versions 9.18.0 through 9.18.32, 9.20.0 through 9.20.4,...

3 affected packages

bind9, bind9-libs, isc-dhcp

Package	24.04 LTS	22.04 LTS	20.04 LTS	18.04 LTS	16.04 LTS
bind9	Fixed	Fixed	Fixed	Needs evaluation	Needs evaluation
bind9-libs	Not in release	Needs evaluation	Needs evaluation	—	—
isc-dhcp	Needs evaluation	Not affected	Not affected	Needs evaluation	Not affected

CVE-2024-11187

Medium priority

Some fixes available 5 of 14

It is possible to construct a zone such that some queries to it will generate responses containing numerous records in the Additional section. An attacker sending many such queries can cause either the authoritative server itself...

3 affected packages

bind9, bind9-libs, isc-dhcp

Package	24.04 LTS	22.04 LTS	20.04 LTS	18.04 LTS	16.04 LTS
bind9	Fixed	Fixed	Fixed	Needs evaluation	Needs evaluation
bind9-libs	Not in release	Needs evaluation	Needs evaluation	—	—
isc-dhcp	Needs evaluation	Not affected	Not affected	Needs evaluation	Not affected

CVE-2024-4076

Medium priority

Some fixes available 5 of 11

Client queries that trigger serving stale data and that also require lookups in local authoritative zone data may result in an assertion failure. This issue affects BIND 9 versions 9.16.13 through 9.16.50, 9.18.0 through 9.18.27,...

3 affected packages

bind9, bind9-libs, isc-dhcp

Package	24.04 LTS	22.04 LTS	20.04 LTS	18.04 LTS	16.04 LTS
bind9	Fixed	Fixed	Fixed	Not affected	Not affected
bind9-libs	Not in release	Needs evaluation	Needs evaluation	—	—
isc-dhcp	Needs evaluation	Not affected	Not affected	Needs evaluation	Not affected

CVE-2024-1975

Medium priority

Some fixes available 7 of 14

If a server hosts a zone containing a "KEY" Resource Record, or a resolver DNSSEC-validates a "KEY" Resource Record from a DNSSEC-signed domain in cache, a client can exhaust resolver CPU resources by sending a stream of SIG(0)...

3 affected packages

bind9, bind9-libs, isc-dhcp

Package	24.04 LTS	22.04 LTS	20.04 LTS	18.04 LTS	16.04 LTS
bind9	Fixed	Fixed	Fixed	Fixed	Fixed
bind9-libs	Not in release	Needs evaluation	Needs evaluation	—	—
isc-dhcp	Needs evaluation	Not affected	Not affected	Needs evaluation	Not affected

CVE-2024-1737

Medium priority

Some fixes available 7 of 14

Resolver caches and authoritative zone databases that hold significant numbers of RRs for the same hostname (of any RTYPE) can suffer from degraded performance as content is being added or updated, and also when handling client...

3 affected packages

bind9, bind9-libs, isc-dhcp

Package	24.04 LTS	22.04 LTS	20.04 LTS	18.04 LTS	16.04 LTS
bind9	Fixed	Fixed	Fixed	Fixed	Fixed
bind9-libs	Not in release	Needs evaluation	Needs evaluation	—	—
isc-dhcp	Needs evaluation	Not affected	Not affected	Needs evaluation	Not affected

CVE-2024-0760

Medium priority

Some fixes available 5 of 11

A malicious client can send many DNS messages over TCP, potentially causing the server to become unstable while the attack is in progress. The server may recover after the attack ceases. Use of ACLs will not mitigate...

3 affected packages

bind9, bind9-libs, isc-dhcp

Package	24.04 LTS	22.04 LTS	20.04 LTS	18.04 LTS	16.04 LTS
bind9	Fixed	Fixed	Fixed	Not affected	Not affected
bind9-libs	Not in release	Needs evaluation	Needs evaluation	—	—
isc-dhcp	Needs evaluation	Not affected	Not affected	Needs evaluation	Not affected

CVE-2023-5680

Medium priority

Not affected

If a resolver cache has a very large number of ECS records stored for the same name, the process of cleaning the cache database node for this name can significantly impair query performance. This issue affects BIND 9 versions...

2 affected packages

bind9, isc-dhcp

Package	24.04 LTS	22.04 LTS	20.04 LTS	18.04 LTS	16.04 LTS
bind9	Not affected	Not affected	Not affected	Not affected	Not affected
isc-dhcp	Not affected	Not affected	Not affected	Not affected	Not affected

CVE-2023-6516

Medium priority

Some fixes available 1 of 2

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...

3 affected packages

bind9, bind9-libs, isc-dhcp

Package	24.04 LTS	22.04 LTS	20.04 LTS	18.04 LTS	16.04 LTS
bind9	Not affected	Not affected	Fixed	Not affected	Not affected
bind9-libs	Not in release	Not affected	Not affected	Not in release	Not in release
isc-dhcp	Not affected	Not affected	Not affected	Needs evaluation	Not affected

CVE-2023-5679

Medium priority

Some fixes available 5 of 6

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,...

3 affected packages

bind9, bind9-libs, isc-dhcp

Package	24.04 LTS	22.04 LTS	20.04 LTS	18.04 LTS	16.04 LTS
bind9	Fixed	Fixed	Not affected	Not affected	Not affected
bind9-libs	Not in release	Not affected	Not affected	Not in release	Not in release
isc-dhcp	Not affected	Not affected	Not affected	Needs evaluation	Not affected

CVE-2023-5517

Medium priority

Some fixes available 6 of 8

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...

3 affected packages

bind9, bind9-libs, isc-dhcp

Package	24.04 LTS	22.04 LTS	20.04 LTS	18.04 LTS	16.04 LTS
bind9	Fixed	Fixed	Fixed	Needs evaluation	Not affected
bind9-libs	Not in release	Not affected	Not affected	Not in release	Not in release
isc-dhcp	Not affected	Not affected	Not affected	Not affected	Not affected

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