CVE-2022-2929
Publication date 5 October 2022
Last updated 24 July 2024
Ubuntu priority
In ISC DHCP 1.0 -> 4.4.3, ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16-P1 a system with access to a DHCP server, sending DHCP packets crafted to include fqdn labels longer than 63 bytes, could eventually cause the server to run out of memory.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| isc-dhcp | ||
| 22.04 LTS jammy |
Fixed 4.4.1-2.3ubuntu2.3
|
|
| 20.04 LTS focal |
Fixed 4.4.1-2.1ubuntu5.20.04.4
|
|
| 18.04 LTS bionic |
Fixed 4.3.5-3ubuntu7.4
|
|
| 16.04 LTS xenial |
Fixed 4.3.3-5ubuntu12.10+esm2
|
|
| 14.04 LTS trusty |
Fixed 4.2.4-7ubuntu12.13+esm2
|
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Get Ubuntu ProSeverity score breakdown
| Parameter | Value |
|---|---|
| Base score |
6.5 · Medium
|
| Attack vector | Adjacent |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
References
Related Ubuntu Security Notices (USN)
- USN-5658-1
- DHCP vulnerabilities
- 5 October 2022
- USN-5658-2
- DHCP vulnerabilities
- 7 November 2022
- USN-5658-3
- DHCP vulnerabilities
- 21 November 2022