Description
A missing check on incoming client requests can be exploited to cause a situation where the Kea server's lease storage contains leases which are rejected as invalid when the server tries to load leases from storage on restart. If the number of such leases exceeds a hard-coded limit in the Kea code, a server trying to restart will conclude that there is a problem with its lease store and give up. Versions affected: 1.4.0 to 1.5.0, 1.6.0-beta1, and 1.6.0-beta2
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| ISC | Kea | 1.4.0 to 1.5.0, 1.6.0-beta1, 1.6.0-beta2 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | isc-kea | 1.7.5-1 | — |
| Debian 13 | isc-kea | 1.7.5-1 | — |
| Debian 12 | isc-kea | 1.7.5-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | isc-kea | No fix yet | — |
| Ubuntu Pro 16.04 LTS | isc-kea | No fix yet | — |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | kea | 1.7.2-r0 | — |
| Alpine v3.23 | kea | 1.7.2-r0 | — |
| Alpine v3.22 | kea | 1.7.2-r0 | — |
| Alpine v3.21 | kea | 1.7.2-r0 | — |
| Alpine v3.20 | kea | 1.7.2-r0 | — |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | kea | 1.7.2-r0 | — |
| Alpine v3.18 | kea | 1.7.2-r0 | — |
| Alpine v3.17 | kea | 1.7.2-r0 | — |
| Alpine v3.16 | kea | 1.7.2-r0 | — |
| Alpine v3.15 | kea | 1.7.2-r0 | — |
| Alpine v3.14 | kea | 1.7.2-r0 | — |
| Alpine v3.13 | kea | 1.7.2-r0 | — |
| Alpine v3.12 | kea | 1.7.2-r0 | — |
| Alpine v3.11 | kea | 1.7.2-r0 | — |