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Some fixes available 8 of 13
For a secondary zone with transfers restricted by TSIG, `named` may start to serve the data provided in a zone transfer before the final message with the TSIG signature arrives. This could allow an attacker that does not actually...
3 affected packages
bind9, isc-dhcp, bind9-libs
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| bind9 | Fixed | Fixed | Fixed | Fixed | Fixed |
| isc-dhcp | Needs evaluation | Needs evaluation | Not affected | Not affected | Needs evaluation |
| bind9-libs | Not in release | Not in release | Needs evaluation | Needs evaluation | — |
Some fixes available 5 of 10
If a BIND resolver has cached a tree of SVCB/HTTPS AliasMode records, and is then queried for the root of that tree, the resolver will spend disproportionate CPU time constructing the response. This issue affects BIND 9 versions...
3 affected packages
bind9, isc-dhcp, bind9-libs
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| bind9 | Fixed | Fixed | Fixed | Fixed | Not affected |
| isc-dhcp | Needs evaluation | Needs evaluation | Not affected | Not affected | Needs evaluation |
| bind9-libs | Not in release | Not in release | Needs evaluation | Needs evaluation | — |
Some fixes available 5 of 10
A BIND resolver encountering an SVCB/HTTPS AliasMode record referencing 14 or more SVCB/HTTPS ServiceMode records may fail to properly deallocate internal resources. If this happens repeatedly, resource exhaustion will eventually...
3 affected packages
bind9, isc-dhcp, bind9-libs
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| bind9 | Fixed | Fixed | Fixed | Fixed | Not affected |
| isc-dhcp | Needs evaluation | Needs evaluation | Not affected | Not affected | Needs evaluation |
| bind9-libs | Not in release | Not in release | Needs evaluation | Needs evaluation | — |
Some fixes available 8 of 13
A malformed zone may contain an NS or DNAME node above its origin, which `named` treats as a zone cut. If an attacker inserts a malformed zone into a BIND authoritative server (e.g., via zone transfer), queries for names inside...
3 affected packages
bind9, isc-dhcp, bind9-libs
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| bind9 | Fixed | Fixed | Fixed | Fixed | Fixed |
| isc-dhcp | Needs evaluation | Needs evaluation | Not affected | Not affected | Needs evaluation |
| bind9-libs | Not in release | Not in release | Needs evaluation | Needs evaluation | — |
Some fixes available 2 of 7
An attacker can cause `named` to abort by sending a crafted DNS-over-HTTPS request with a cryptographically invalid SIG(0) record, and then closing the transport connection prematurely. This issue affects BIND 9 versions 9.20.0...
3 affected packages
bind9, isc-dhcp, bind9-libs
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| bind9 | Fixed | Not affected | Not affected | Not affected | Not affected |
| isc-dhcp | Needs evaluation | Needs evaluation | Not affected | Not affected | Needs evaluation |
| bind9-libs | Not in release | Not in release | Needs evaluation | Needs evaluation | — |
Some fixes available 8 of 13
An inapplicable NSEC record may be accepted by a `named` resolver as proof that no wildcard exists, which could allow an attacker at the same or an upstream level of the zone name to mask the existence of a victim's wildcard...
3 affected packages
bind9, isc-dhcp, bind9-libs
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| bind9 | Fixed | Fixed | Fixed | Fixed | Fixed |
| isc-dhcp | Needs evaluation | Needs evaluation | Not affected | Not affected | Needs evaluation |
| bind9-libs | Not in release | Not in release | Needs evaluation | Needs evaluation | — |
Some fixes available 5 of 10
If an attacker-controlled authoritative server can produce a negative answer that is exactly 65536 bytes, then a flaw in `named` results in a negative cache entry of 0 bytes. When this entry is subsequently read, `named`...
3 affected packages
bind9, isc-dhcp, bind9-libs
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| bind9 | Fixed | Fixed | Fixed | Fixed | Not affected |
| isc-dhcp | Needs evaluation | Needs evaluation | Not affected | Not affected | Needs evaluation |
| bind9-libs | Not in release | Not in release | Needs evaluation | Needs evaluation | — |
Some fixes available 5 of 10
An attacker may be able to cause a `named` resolver to abort. The attack requires inducing the victim resolver to send multiple queries for a DNSSEC-signed zone hosted by an authoritative server under the control of the attacker....
3 affected packages
bind9, isc-dhcp, bind9-libs
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| bind9 | Fixed | Fixed | Fixed | Fixed | Not affected |
| isc-dhcp | Needs evaluation | Needs evaluation | Not affected | Not affected | Needs evaluation |
| bind9-libs | Not in release | Not in release | Needs evaluation | Needs evaluation | — |
Some fixes available 7 of 12
The BIND resolver accepts validly-signed NSEC records where the "Next Domain Name" field points outside the signer's zone. This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.24, 9.21.0 through 9.21.23,...
3 affected packages
bind9, isc-dhcp, bind9-libs
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| bind9 | Fixed | Fixed | Fixed | Fixed | Fixed |
| isc-dhcp | Needs evaluation | Needs evaluation | Not affected | Not affected | Needs evaluation |
| bind9-libs | Not in release | Not in release | Needs evaluation | Needs evaluation | — |
Some fixes available 7 of 12
If a provably insecure domain is covered by both an NSEC and NSEC3 record at the parent, and there exist an RRSIG for only one of these types, then BIND may exit unexpectedly with an assertion while validating this proof. This...
3 affected packages
bind9, isc-dhcp, bind9-libs
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| bind9 | Fixed | Fixed | Fixed | Fixed | Fixed |
| isc-dhcp | Needs evaluation | Needs evaluation | Not affected | Not affected | Needs evaluation |
| bind9-libs | Not in release | Not in release | Needs evaluation | Needs evaluation | — |