CVE-2024-1975
Publication date 23 July 2024
Last updated 15 August 2024
Ubuntu priority
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) signed requests. This issue affects BIND 9 versions 9.0.0 through 9.11.37, 9.16.0 through 9.16.50, 9.18.0 through 9.18.27, 9.19.0 through 9.19.24, 9.9.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.49-S1, and 9.18.11-S1 through 9.18.27-S1.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| bind9 | 24.10 oracular |
Fixed 1:9.18.28-0ubuntu1
|
| 24.04 LTS noble |
Fixed 1:9.18.28-0ubuntu0.24.04.1
|
|
| 22.04 LTS jammy |
Fixed 1:9.18.28-0ubuntu0.22.04.1
|
|
| 20.04 LTS focal |
Fixed 1:9.18.28-0ubuntu0.20.04.1
|
|
| 18.04 LTS bionic |
Fixed 1:9.11.3+dfsg-1ubuntu1.19+esm4
|
|
| 16.04 LTS xenial |
Fixed 1:9.10.3.dfsg.P4-8ubuntu1.19+esm9
|
|
| 14.04 LTS trusty | Ignored end of ESM support, was needs-triage | |
| bind9-libs | 24.10 oracular | Not in release |
| 24.04 LTS noble | Not in release | |
| 22.04 LTS jammy |
Needs evaluation
|
|
| 20.04 LTS focal |
Needs evaluation
|
|
| isc-dhcp | 24.10 oracular |
Needs evaluation
|
| 24.04 LTS noble |
Needs evaluation
|
|
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal |
Not affected
|
|
| 18.04 LTS bionic |
Needs evaluation
|
|
| 16.04 LTS xenial |
Not affected
|
|
| 14.04 LTS trusty |
Not affected
|
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alexmurray
As of isc-dhcp-4.4.3-1, isc-dhcp vendors bind9 libs
mdeslaur
in focal and jammy, isc-dhcp uses the bind9-libs package This is unlikely to affect isc-dhcp's use of bind9-libs and the vendored bind9 libs, marking as negligible
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
7.5 · High
|
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
References
Related Ubuntu Security Notices (USN)
- USN-6909-1
- Bind vulnerabilities
- 23 July 2024
- USN-6909-2
- Bind vulnerabilities
- 1 August 2024
- USN-6909-3
- Bind vulnerabilities
- 15 August 2024