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A recursive BIND server that receives a query with recursion desired (RD=1) followed by a non-recursive query (RD=0) may exit with an assertion failure, resulting in a denial of service. To be vulnerable, the BIND server must...
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 | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |
| isc-dhcp | Needs evaluation | Needs evaluation | Not affected | Not affected | Needs evaluation |
| bind9-libs | Not in release | Not in release | Needs evaluation | Needs evaluation | — |
A BIND resolver that is configured with both a "redirect" zone and "qname-minimization strict" may abort with an assertion failure while processing the redirect. This issue affects BIND 9 versions 9.16.0 through 9.18.50, 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 | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |
| isc-dhcp | Needs evaluation | Needs evaluation | Not affected | Not affected | Needs evaluation |
| bind9-libs | Not in release | Not in release | Needs evaluation | Needs evaluation | — |
Replaying GSS-TSIG signed UDP messages can result in memory corruption in "`named`". An attacker who can capture a previously signed UDP message can replay it while the negotiated TSIG key is still valid. By also sending crafted...
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 | Vulnerable | Vulnerable | Vulnerable | Vulnerable | Vulnerable |
| isc-dhcp | Needs evaluation | Needs evaluation | Not affected | Not affected | Needs evaluation |
| bind9-libs | Not in release | Not in release | Needs evaluation | Needs evaluation | — |
In a BIND resolver, inbound DNS protocol messages with a particular structure will result in additional processing, with no limit imposed by BIND. A DNS message with a maliciously large number of such structures will cause BIND...
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 | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |
| 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 13
If a BIND resolver sends a query for a DNSSEC-signed authoritative zone, and the authoritative server replies with a valid wildcard answer and signed NSEC3 proof, followed by an unsigned NSEC at the same owner name, it will...
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 13
A validly signed NSEC3 from an unrelated sibling zone may be accepted as an insecurity proof, downgrading a secure delegation and letting a forged unsigned answer through. This issue affects BIND 9 versions 9.11.0 through 9.18.50,...
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 1 of 7
If BIND is loaded with a "`named.conf`" file that contains no global "`options`" block, an attacker can send a query of QTYPE TKEY which may cause an assertion failure and subsequent unexpected program exit. This issue affects...
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 7 of 13
In a query response, an attacker may send `named` multiple copies of a record that should only exist once (such as an SOA record). If the RDATA is the same on all the copies, the record is appended to the in-memory RDATA set,...
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 13
A BIND recursive resolver may experience excessive resource consumption if it encounters large numbers of a particular kind of invalid DNSSEC record. Default limits on "max-records-per-type" and "max-types-per-name" help mitigate...
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 13
On a resolver configured to use ``dns64``, if an applicable answer from the authoritative server is malformed in a specific way, the resolver `named` process will exit unexpectedly. This issue affects BIND 9 versions 9.11.0...
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 | 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 | — |